Aro Electrodes En

Elec

trode

sEl

ectro

des

ARO ELECTRODES: MASTERARO ELECTRODES: MASTERYY OF OF AA TRADETRADE

Present on every continent with the widest range of products in theworld, ARO occupies a leading position in its activity. Its new range of

electrodes is the result of an incomparable know-how acquired over halfa century entirely dedicated to a trade:

resistance welding.

It is not by chance that for many users ARO electrodes have becomethe benchmark. Making the most of the experience it has gained both

on production sites and following thousands of hours' testing in thelaboratory, ARO is now proposing an advanced range with improved

longevity and working quality performances.

- 2 -

Electrode criteria

THE METAL

The metal used to manufacture the electrodes must have the following characteristics: excellent conductivity in order to oppose the least possible resistance to the current; a good thermal conductivity to ensure rapid heat dissipation; mechanical properties in order to avoid cracking under the effect of impacts.

The metal must have an optimum hardness when hot, which does not mean the maximum hardness that couldbe obtained by work-hardening (1). The metal must be sufficiently hard to avoid it being crushed under the com-pression force, and it must keep this optimum hardness in service so that the electrode is not subjected to sof-tening which would quickly make it unusable.

Amongst the possible metals, the most interesting due to the breadth of its utilization possibilities is chromiumcopper with a slight zirconium content (0.02 to 0.10 % Zr). Thanks to its composition, this alloy has the above-mentioned key qualities. Furthermore, its mechanical properties are further significantly reinforced by its parti-cular elaboration technique which gives it a long-fiber oriented-crystal structure. For example, chromium cop-per's hardness when hot and its resistance to softening are considerably more favorable than those of ordinarycopper zirconium alloys as shown by the graphs reproduced below.

There is, however, one case where the utilization of this metal is not recommended, or is even impossible: wel-ding of copper, etc. For these special applications, ARO proposes electrodes made of electrolytic copper, sin-tered copper tungsten, molybdenum, tungsten, or even graphite. Their utilization conditions are summarized inthe table on page 5.

DESIGN

The electrode's design must meet the following requirements:

appropriate shape for guaranteeing application with optimum weld reliability; optimum heat dissipation.

ARO has paid a great deal of attention to studying the thickness between the electrode's active surface andthe bottom of the cooling channel in order to obtain the best metal-water heat exchange, while ensuring thatthe electrode keeps excellent mechanical properties and the maximum dressing possibilities. Likewise, thedistance between the injection tube (or nozzle) and the bottom of the channel has been carefully determineddue to the importance of this factor in the effectiveness and regularity of cooling. This is why, when an elec-trode is replaced with an electrode of a different model, it is absolutely essential to use the appropriate injec-tion tube.

(1) Excessive work hardening will cause inconsistencies in the metal (by precipitation of one phase at the time of the successive rehea-tings that it is submitted to in service) when, on the contrary, its homogeneity is a key factor for its good mechanical and electrical resis-tance.

- 3 -

USING THE ELECTRODES

The electrodes inevitably become worn due to the contactwith the metal to be welded, under the effect of pressureand heat. The fact that they are wear parts does not meanthat it is always difficult to limit their consumption. Indeed,between very good and very poor utilization conditions,wear can vary by a factor of 1 to 100! It is thereforeobvious why it is so important to use these parts in a ratio-nal way, which is ensured by an appropriate adjustment ofthe welding guns or machines, a power and force ratingsuited to the nature and thickness of the sheets to be wel-ded, an adequate water supply and, insofar as possible, agood surface condition for the parts. By becoming encrus-ted in the active face, scaling or rust cause it to deterioratevery quickly.

If, after having checked these various points, abnormalwear is nevertheless observed, consult the ARO Servicedepartment. Likewise, if the mechanical resistance of theweld spots is not as good as expected, check that the dia-meter (D) of the active faces is suited to the thickness (e),using the following relationship:D = 2e + 3 mm. If the parts to be welded are of the samethickness, the active diameters of the two electrodes willtherefore be the same. But, if wetake the example of a 1 mmsheet to be welded to a 4 mmsheet, the respective diametersshould be in the region of 5 and11 mm. This is necessary toensure that the weld nugget isspread evenly on each side ofthe interface (Fig. 7).

Basic

The "diameter" parameter has undeniable consequenceson the mechanical strength of the assembly. This parame-ter must therefore never be neglected. Likewise, the angleof the tip must be kept close to its original value, which isto say for most electrodes, a = 90 to 120 (Fig. 8).

As a general rule, the end of the tube must be situated at a distance of 1 to 5 mm from the bottom of the channel.Indeed, if this distance is too great, a pool of stagnant water forms at the bottom and is rapidly transformed intovapour preventing any cooling (Fig. 3).

In order to cope with the particular requirements dictated by the configura-tion or to enable access to the parts to be welded, ARO has designed spe-cial electrode shapes. There are a large number of variants one of which,intended for welding tubes, is illustrated in figure 4.

Furthermore, given the many advantages of ARO's swivel electrodes, wemust emphasize their special characteristics. These electrodes, the goal ofwhich is to leave practically no imprint (on the thin metal sheets), meet threekey requirements : very compact shape, extremely easy to orient, highly effi-cient cooling and sealing. (Fig. 5 and 6: Cross-section of a swivel electrodeand view of the orientation possibilities in every plane)

Fig. 3

Fig. 4

Fig. 5

Fig. 6

de base

e2e1

D2

D1

Fig. 7

- 4 -

Electrode criteria

Although the application of the above-mentioned relationship leads to electrodes with awide basic diameter being used, these electrodes are not however oversized. On thecontrary, their thermal cycle (temperature variation in service) is more favorable and,when welding galvanized sheets for example, their longevity without any reworking willbe all the better. Furthermore, a large electrode cross-section is a determining factor forimproving the machine's secondary efficiency by reducing the current density (A/mm?)passing through the electrodes and, consequently, their ohmic resistance.

WELDABILITY TABLE

NickelNickelalloyalloy

NickelNickelPhosphorPhosphor

bronzebronzeSilicaSilica

bronzebronzeNickelNickelsilversilver

YYellowellowbrassbrass

24-40% Zn24-40% Zn

RedRedbrassbrass

10-25% ZN10-25% ZNCopperCopper

AluminumAluminumandand

itits alloyss alloys

SSttainlessainlesssteelsteel

MILD STEELMILD STEEL

OtherOthercoatingscoatings

Zinc galZinc gal--vanizedvanized

ScaledScaled PickledPickled

MMIILLDD

SSTTEEEELL

PickledPickledC 3

3 h

C 3

3 h

C 3

3 h

C 3

3 h

C 3

3 h

C 3

3 fh

D 3

3 fh

D 5

3 fh

C 1

3 fh

B 4

3 e

C 3

3 cd

B 3

3 cd

C 3

3 b

A 3

3 a

ScaledScaled / /D 3

3 bh

D 3

3 bh

D 3

3 bh/ / /

D 1

3 bfh

D 4

3 b

D 3

3 bcd

D 3

3 bcd

C 3

3 b

ZincZincgalvanizedgalvanized

C 3

3 cdh

C 3

3 cd

C 3

3 cd

C 3

3 cd

C 3

3 cd

C 3

3 cdf

D 3

3

D 5

3

D 1

3

B 4

3 cd

C 3

3 cd

B 3

3 cd

OtherOthercoatingscoatings

D 3

3 cdh

D 3

3 cd

D 3

3

D 3

3

D 3

3

D 3

3

D 3

3

D 5

3

D 1

3

D 4

3

C 3

3 cd

SSttainless steelainless steelC 3

4

C 3

4

C 3

4

C 3

4

C 3

4

D 3

4

D 3

4

D 5

4

D 1

4

A 4

4 e

AluminumAluminumand itand its alloyss alloys

D 3

1

D 3

1

C 3

1 eg

C 3

1 eg/

C 3

1 eg

D 3

1

D 5

1

B 1

1 eg

CopperCopperD 3

5

D 3

5

C 3

5 egh

C 3

5 egh

C 3

5 egh

C 3

5 egh

D 3

5

D 5

5 egh

Red brassRed brass10-25% ZN10-25% ZN

D 3

3

D 3

3

D 3

3

D 3

3

D 3

3

D 3

3

C 3

3

YYellow brassellow brass24-40% Zn24-40% Zn

C 3

3 eg

C 3

3 eg

C 3

3 eg

C 3

3 eg

C 3

3 eg

B 3

3 eg

Nickel silverNickel silverB 3

3

B 3

3

C 3

3

C 3

3

B 3

3

Silica bronzeSilica bronzeC 3

3

C 3

3

C 3

3

B 3

3

Phosphor bronzePhosphor bronzeC 3

3

C 3

3

B 3

3

NickelNickelB 3

3

B 3

3

Nickel alloyNickel alloyB 3

3

Fig. 8

WWeldingelding ElectrodesElectrodes

A. Excellent 1. Copper (soudalox 100)B. Good 3. CRM16 (soudalox 200)C. Difficult 4. CB4 (soudalox 300)D. Unsatisfactory 5. Molybdenum

Special indicationsSpecial indications

a) Can be used in a very wide quality and size range.b) Inconsistent low-quality welding, sanding or pickling

recommended.c) The thickness of the coating must be uniform.d) The electrodes must be kept clean to avoid

sticking.e) High currents and short times to avoid sticking.f) Small thicknesses can be welded under special

conditions.g) The welding parameters must be carefully checked.h) Low welding resistance.

Weldingpossibility

Electrodeagainst

Electrodeagainst

Specialindications

- 5 -

Electrode criteria

NATURE OF THE ELECTRODES' ACTIVE FACE

The table below indicates the nature of the electrodes to be used according to the metallurgical type of the parts tobe welded, their shape, and the type of assembly to be made.

Nature of the work to be performed Nature of the electrode to be used

Welding

of mild steels (whether pickled or not),not coated (galvanized, zinc-plated, alu-minized, chrome-plated, nickel-plated,tin-plated, etc.) of stainless steels of heat-resisting steels

of brasses of bronzes of nickel and its alloys of different types of metals

(steel/brass, stainlesssteel/mild steel, stainlesssteel/galvanized steel)

copper-chrome-zirconium alloy

Welding of aluminum of aluminized steel electrolytic copper

Welding of pure copper of lightly alloyed copper molybdenum

Welding copper/brass molybdenum on copper side and

Cu-Cr-Zr electrode on brass side

Welding of copper wires of tantalum of silicon steel tungsten

Welding of electrical contacts by projection

sintered copper tungsten(Cutene)

Electro-brazingor heating

of parts made of miscellaneous metals graphite

Hot rivetingCunitene (possibly Cutene)

The various parts making up the electrode: (electrode tips and electrode bodies) and the electrode holders presentedin this catalogue comply with the CNOMO recommendations and are conform to the ISO specifications.

In certain cases, the utilization of these electrode tips requires the replacement of the existing electrode bodies orelectrode holders, with new models.

We remain at your disposal for any further information and to propose the most appropriate solution if you give us theprecise references or dimensions of the equipment used on your machine.

- 6 -

Electrode characteristics

In a resistance welding machine, the electrodes are the components that are submitted to the most severeservice conditions, since they must simultaneously support all of the force and all of the current.

One of the key factors for success lies in the choice of its characteristics,that is to say:

Material Profile and dimension Cooling

Material

To make the electrodes, we use alloys that maintain a high degree hardness at the welding temperaturesand a conductivity close to that of copper.

The table below indicates these alloys' characteristics and applications.

METAL ELECT. COPPERSOUDALOX 100CRM16

SOUDALOX 200CB4

SOUDALOX 300

Brinell hardness 100 to 120 130 to 160 170 to 220

Electricalconductivity

Copper I.A.C.S. %83 to 93 75 to 85 45 to 52

Annealingtemperature C

350 500 500

Breaking load

kg/mm245 52 70

Applicationsaluminum and

light alloysmild and

semi-soft steel

stainless steelshard steels

heat-resistant steelsself-hardening steels

Marking on the tip ofsoudalox electrodes XXXXXXXXXX

A B M E L R P CRM16SOUDALOX 200

116 9.5 12 6 20 4 P911 310 600 * (T0 611 001)

20 11.5 15 8 22 5 P911 321 600 (T0 611 002)

216 9.5 12 20 P911 310 400 * (T0 611 003)

20 11.5 15 22 P911 321 400 (T0 611 004)

316 9.5 12 20 P911 310 000 (T0 611 005)

20 11.5 15 22 P911 321 000 (T0 611 006)

416 9.5 12 20 40 P911 310 101 (T0 611 007)

20 11.5 15 22 50 P911 321 100 (T0 611 008)

- 7 -

Tips of femaledetachable electrodes

* Can be delivered within 24 hours in an emergency.

- 8 -

10% tapered electrodes

ARO N1 8.9N2 11.8N3 17.8N4 24.5

ISO12.7 -15.519

STRAIGHTSTRAIGHT, FLA, FLATT

d1 c L j b p Electrolytic Cusoudalox 100CRM16

soudalox 200CB4

soudalox 3008.9 10 25 14 6.5 17 WL145100 WL145107

" 10 35 14 6.5 27 WL145135

11.8 14 34 12 7.5 24 WL245134 WL245203

" 14 55 12 7.5 20 WL245156

" 12 30 19 7.5 17 WL245530 *

" 14 33 25 7.5 25 WL245733 *

12.7 16 32 13 8 T0611009

" " 40 " " T0611010

" " 50 " " T0611011

" " 63 " " T0611012

15.5 20 40 16 10 T0611014 T0611013 T0611015

" " 50 " T0611016

" " 63 " T0611018 T0611017 T0611019

" " 80 " T0611020

" " 44 25 36 T0611084

17.8 20 45 19 10.5 27 WL370101 WL345146 * WL345147

" 20 65 19 10.5 48 WL345165 WL345118

" 20 45 25 10.5 35 WL345645

" 20 72 30 10.5 27 WL345372

" 20 62 35 10.5 42 WL346562

" 20 53 40 10.5 27 WL345553

" 20 72 50 10.5 53 WL345972

19 25 50 20 13 T0611022 T0611021 T0611023

" " 63 " " T0611024

" " 80 " " T0611026 T0611025 T0611027

" " 55 35 " 45 T0611085

24.5 32 50 25 16 T0611028

" 32 63 25 16 T0611029

" 32 80 25 16 T0611030

" 32 60 25 10.5 41 WL445960

" 32 100 30 10.5 83 WL445601

" 32 64.5 35 10.5 41 WL445000

d1 b j

L

c

p

- 9 -

ARO N1 8.9N2 11.8N3 17.8N4 24.5

ISO12.7 -15.519

STRAIGHTSTRAIGHT, CENTERED, CENTERED

d1 c L j b p a d2 Electrolytic Cusoudalox 100CRM16

soudalox 200CB4

soudalox 300

8.9 10 25 10 7.5 17 60 5 WL103525 *

10 34 10 7.5 26 90 4 WL103534

10 43 10 7.5 17 90 4 WL103543

11.8 14 34 12 7.5 16 37,30 4 WL203001

" 14 34 12 7.5 24 90 6 WL267300 WL203134 *

" 14 42 12 7.5 24 90 6 WL203142 *

" 14 55 12 7.5 40 90 6 WL203155 *

14 55 12 7.5 90 WL203101

14 71 12 7.5 24 90 4 WL203171

14 84 12 7.5 24 60 6 WL203184 * WL203183

14 84 12 7.5 24 90 4 WL203105

12.7 16 40 13 8 90 T0611208

" 16 63 13 8 90 T0611209

15.5 20 40 16 10 90 T0611032 T0611031 T0611033

" 20 50 16 10 90 T0611034

" 20 63 16 10 90 T0611036 T0611035 T0611037

" 20 80 16 10 90 T0611038

17.8 13 30 19 10.5 20 120 6 WL303130

" 20 45 19 10.5 27 90 6 WL303145 * WL303146

" 20 56 19 10.5 38 90 6 WL367156 WL303156 *

" 20 62 19 10.5 6 WL303162

" 20 92 19 10.5 27 90 6 WL303192

" 20 104 19 10.5 27 90 6 WL303104

19 25 50 20 13 90 T0611040 T0611039 T0611041

" 25 63 20 13 90 T0611042

" 25 80 20 13 90 T0611044 T0611043 T0611045

24.5 32 50 25 16 90 T0611210

" 32 60 25 10.5 41 90 13 WL403960

" 32 100 25 10.5 83 90 13 WL403901 WL403900

d1 b d2 j

L

c

p

a


- 10 -


ARO N1 8.9N2 11.8N3 17.8N4 24.5

ISO12.7 -15.519

STRAIGHTSTRAIGHT, ECCENTRIC, ECCENTRIC

d1 c L j l b p a d2 eElectrolytic

Cusoudalox 100

CRM16soudalox

200

CB4soudalox

300

8.9 10 25 10 6.5 17 90 5 3 WL141525 * 10 34 10 6.5 26 90 4 3 WL141534

" 10 43 10 6.5 17 90 4 3 WL141543

" 10 25 14 6.5 13 90 6.5 4 WL142125

11.8 14 34 12 7.5 24 90 6 3 WL241134 *" 14 42 12 7.5 24 90 6 3 WL241142

" 14 55 12 7.5 40 90 6 3 WL241155 *" 14 71 12 7.5 90 WL241171

" 14 80 12 7.5 65 60 2.5 4 WL241100

" 14 84 12 7.5 24 90 4 3 WL241102

" * 14 34 14 7.5 22 90 5 8 WL24250212.7 16 32 13 8 60 3 T0611061 domed

" 16 40 13 8 60 3 T0611062 "

" 16 50 13 8 60 3 T0611063 "

" 16 63 13 8 60 3 T0611064 "

15.5 20 40 16 10 90 4 T0611047 T0611046 T0611048

" 20 50 16 10 90 4 T0611049

" 20 63 16 10 90 4 T0611051 T0611050 T0611052

" 20 80 16 10 90 4 T0611053

" 20 40 16 10 60 4 T0611066 T0611065 T0611067 domed

" 20 50 16 10 60 4 T0611068 "

" 20 63 16 10 60 4 T0611070 T0611069 T0611071 "

" 20 80 16 10 60 4 T0611072 "

17.8 20 45 19 10.5 27 90 6 4 WL341145 *" 20 56 19 10.5 38 90 6 4 WL368155 WL341156

" 20 92 19 10.5 27 90 6 5 WL341192

" * 20 55 30 21 10.5 40 90 6 11 WL34235519 25 50 20 13 90 5 T0611055 T0611054 T0611056

" 25 63 20 13 90 5 T0611057

" 25 80 20 13 90 5 T0611059 T0611058 T0611060

" 25 50 20 13 60 5 T0611212 T0611073 T0611213 domed

" 25 63 20 13 60 5 T0611069 "

" 25 80 20 13 60 5 T0611076 T0611075 T0611077 "

25 31.5 60 25 10.5 41 90 12 6 WL441960

" 31.5 100 25 10.5 90 12 6 WL441000 WL441900

d1d2

b j

L

c

p

e a

d1

d2

b j

L

c

l

p

e

a

Fig. 1 * Fig. 2

- 11 -


d1 d2 b j

L

c

p

a d1

d2 b j

L

c

p

ea

d1d2

b j

L

c

p

ea

d1 b j

L

c

p

DETDETACHABLE ELECTRODEACHABLE ELECTRODE

d1 c L j b p a d2 e centeredstraighteccentricstraight

eccentrictilted flat

tung

sten

8.9 10 25 10 6.5 16 90 4 WL155525

8.9 10 25 14 6.5 14 90 6 3 WL156100

8.9 10 25 14 6.5 14 90 6 3 WL157600

11.8 14 34 16 7.5 14 90 6 WL255334

11.8 14 34 16 7.5 24 90 6 3 WL256334

11.8 14 34 16 7.5 24 90 4 3 WL257334

17.8 20 45 19 10.5 28 90 6 WL355145

17.8 20 45 19 10.5 27 90 6 4 WL356100

17.8 20 43 19 10.5 27 90 6 3 WL357100

mol

ybde

num

8.9 10 25 14 6.5 16 90 4 WL158125

8.9 10 25 12 6.5 16 90 4 3 WL159125

8.9 10 25 14 6.5 16 90 2 3 WL160125

8.9 10 26 14 6.5 16 WL164126

11.8 14 34 16 7.5 24 90 6 WL258334

11.8 14 34 16 7.5 24 90 6 3 WL259334

11.8 14 34 16 7.5 24 90 3 3 WL260334

17.8 20 56 18 10.5 27 90 6 WL358156

17.8 20 58 18 10.5 27 90 6 4 WL359158

17.8 20 58 18 10.5 27 90 4 4 WL360158

17.8 20 52 18 27 WL364152

Cut

ene

8.9 10 42 14 6.5 26 90 6 WL175142

8.9 10 42 14 6.5 26 WL176142

11.8 14 44 16 7.5 24 90 6 WL275344

11.8 14 44 16 7.5 WL276344

17.8 20 55 18 10.5 27 90 6 WL375155

17.8 20 45 18 10.5 31 90 6 5 WL381145

17.8 20 55 18 10.5 27 WL376155

grap

hite

8.9 10 37 12 6.5 26 WL178137

11.8 14 36 14 7.5 24 WL278336

17.8 20 48 16 10.5 27 WL378148

17.8 20 45 24 10.5 27 WL378345

ARO N1 8.9N2 11.8N3 17.8N4 24.5

ISO12.7 -15.519

- 12 -


ARO N1 8.9N2 11.8N3 17.8N4 24.5

ISO12.7 -15.519

TILTILTED, ECCENTRICTED, ECCENTRIC

d1 c L j b p a d2 e CRM16soudalox 2008.9 10 25 10 6.5 17 90 2, 5 3 WL105525

" 10 35 10 6.5 26 90 3 3 WL105535

11.8 11 24 12 7.5 17 90 6 3 WL205124

" 14 34 12 7.5 24 90 3 3 WL205134 *

" 14 42 12 7.5 24 90 3 3 WL205142

" 14 55 12 7.5 40 90 3 3 WL205154 *

14 70 12 7.5 24 60 4 3 WL205170

11.8* 14 36 18 7.5 22 3 9.5 WL244436

11.8* 14 56 18 7.5 40 3 9.5 WL244456

17.8 20 45 19 10.5 27 90 4 4 WL305145 *

" 20 55 19 10.5 27 90 3 4 WL305157

" 20 87 19 10.5 73 90 4 4 WL305101

24.5 31.5 60 25 10.5 41 90 10 5 WL305964

d1d2

b j

L

c

p

ea

Fig. 1

* Fig. 2

- 13 -


S-shapedd1 L e a d2

11.8 87 27 90 6 WL210300

15.5 95 28 4 T0611102

17.8 100 27 90 6 WL310104 *19 105 35 5 T0611103

ARO N1 8.9N2 11.8N3 17.8N4 24.5

ISO12.7 -15.519

SPECIALSPECIAL SHAPES ORSHAPES ORVERSIONSVERSIONS

curved and taperedd1 L e d2

17.8 127 30 7.4 WL310103 *

platen on swiveld1 L j8.9 39.3 22 WL108839

41.4 30 WL108243

11.8 43.25 22 WL208939 *" 45.4 30 WL208943 *" 45.8 25 WL208600

12.7 45 30 T0611086

15.5 50 30 T0611087

17.8 51.4 30 WL308363 *19 65 40 T0611088

rectangulard1 h L S1 S2 p

11.8 25 41 20 30 35 WL299941

15.5 20 50 20 50 35 T0611082

17.8 18 40 20 40 25 WL311941

" 20 42 20 90 32 WL311942

" 25 47 25 50 25 WL311948

19 25 60 25 60 40 T0611083

shoulderedd1 L j l a d2 d3

11.8 41 12 16 90 6 8 WL299141

17.8 50 19 19 90 5 10 WL303950 *

- 14 -


ARO N1 8.9N2 11.8N3 17.8N4 24.5

ISO12.7 -15.519


offset, adjustable

d1 L a d2 e

17.8 62 to 104 90 4 43 WL343900

L-offset

d1 L e d d2 j p

11.8 56 26 35 5 12 10 T0611214

15.5 56 26 35 5 12 10 T0611104

17.8 67 32 40 8 16 12 T0611215

19 67 32 40 8 16 12 T0611105

elbow endd1 L e j

15.5 88 25 16 T0611100

19 93 25 20 T0611101

90 elbow, rough cast surfaced1 L e d2

15.5 45 25 7 T0611106

19 65 30 9 T0611107

tapered

d1 L J d2 sx 100 sx 200 sx 300

11.8 60 12 6 WL216360

12.7 50 13 5 T0611093

15.5 64 16 7 T0611095 T0611094 T0611096

19 80 20 9 T0611098 T0611097 T0611099

- 15 -

ARO N1 8.9N2 11.8N3 17.8N4 24.5

ISO12.7 -15.519


straight, centered dome (special light alloy)

d1 L j r soudalox 100 CRM1615.5 50 16 100 T0611079

" 63 16 " T0611117

17.8 45 19 50 WL314111

" 45 19 75 WL314101

" 45 19 100 WL314109

" 45 19 150 WL314110

" 56 19 150 WL314108

19 50 20 200 T0611080

snub end

d1 L j e soudalox 20015.5 80 7 25 T0611089

19 90 9 25 T0611090

tube welding

d1 L M N S CRM1617.8 55 50 30 35 WL315955

please consult us for other dimensions

d1 L M N CRM1617.8 50 40 20 WL313950


- 16 -

Electrodes for endmounting 19.8

Used on S 2000 and S 3000 welding guns and on N 33 machines.

NUT AND HALF-BUSHING FOR END MOUNTING OF ELECTRODEElectrode reference Half-bushing reference Nut reference

WL 899 903 00 100 384* 100 385

WL 899 901 00 100 384* 100 385

WL 899 902 00 100 384* 100 385

WL 803 201 2 180

WL 819 200 2 180

WL 818 100 002 179 (to be ordered in pairs) 2 180

WL 816 201 2 180

* set of 2

- 17 -

Electrodes for endmounting - 24.5

Used on S 4000 and S 6000 welding guns and on MA - MC - MD and PA machines.

NUT AND HALF-BUSHING FOR END MOUNTING OF ELECTRODEElectrode reference Half-bushing reference Nut reference

WL 403 501 100 542

WL 425 500 100 542

WL 420 500 100 542

WL 403 500 100 542

WL 439 103 100 604* 100 542

WL 499 901 100 604* 100 542

WL 499 900 100 604* Short 103 834

* set of 2

- 20 -

Electrodes for MOS machines

Angle shanks

Straight Shanks

25 straight WU 251 322

30 straight WU 321 302

32straight WU 321 300

inclined WU 321 301


inclined WU 401 301


inclined

Length 11.8ARO cone No.2 17.8

ARO cone No.3 24.5

ARO cone No.4

Type I 32

130 WU 321 003 WU 321 006

250 WU 322 002 WU 322 005

450 WU 324 002 WU 324 005

intermediate 00 115 515 00 115 509

Type II 40

130 WU 401 005 WU 401 004

250 WU 402 005 WU 402 004

450 WU 404 002 WU 404 001

intermediate 00 115 576 00 115 512

Type III 50

130 WU 501 001

250 WU 502 002 WU 502 001

370 WU 503 001

550 WU 505 000

intermediate 00 200 258 00 115 940

- 21 -

Two-pin electrodes

Shape

(mm)L

(mm)Ref.

SubassemblyElectrodes

9.1

A 1644 WU 160 300 WL 101 517

154 WU 161 300WL 104 516

B 1644 WU160 206

154 WU 161 203 WL 106 700

Shape

(mm)L

(mm)Ref.


12

A

19

71.5 WU 190 300

WL 201 124111.5 WU 191 301

151.5 WU191 300

246.5 WU 192 300WL 204 124

25231.5 WU 252 301

315.5 WU 253 301

WL 243 324

B 19

71.5 WU 190 200

111.5 WU 191 201

151.5 WU 191 200WL 206 421

246.5 WU 192 200

Shape

(mm)L

(mm)Ref.


18

A

25

155 WU 251 301

WL 341 125255 WU 252 300

355 WU 253 302

30

170 WU 301 300

255 WU 302 300

WL 304 140355 WU 303 300

B 25155 WU 251 200

255 WU 252 200

- 23 -

Intermediate cones

Interior B

Exterior A 8.9 11.8 12.7 15.5 17.8 19 24.5

ARO cone No.1 ARO cone No.2 ISO ISO ARO cone No.3 ISO ARO cone No.4

Dimensions(mm) L E L E L E L E L E L E L E

11.8ARO cone No.

00 102 050 200 189

17 13

17.8ARO cone No.

00 101 876 00 101 272 201 695 00 201 092 200 870

23 19 26 20 26 19 32 20

19ISO

00 200 762 T0 621 028 202 044

30 46 48 19

24.5ARO cone No.

00 104 621 T0 621 029 00 103 894 00 200 927

42 35.5 45 35

23.82CM3

00 115 515 00 115 511 00 115 510 00 115 509

30 20 30 20 30 20 30 20

31.26CM4

00 115 577 00 115 576 00 115 514 00 115 512

40 30 40 30 40 30

12.7 200 500

15.5200 897 200 324

52 22

- 24 -

Straight extensions

Cooling tube(to be cut to length

at 45 degrees)

4x6 00 200 850 00 200 850 00 200 851 00 200 851 00 200 851

6x8 00 201 280 00 201 280 00 201 281 00 201 281 00 201 281

L= mm

D1 D2 Cone D3 30 40 50 63 80 100

10

8.9 No.1 1200 201 150 00 201 151 00 201 152 00 201 153 00 201 154

* 00 201 155 00 201 156 00 201 157 00 201 158 00 201 159

11.8 No.2 1200 201 160 00 201 161 00 201 162 00 201 163 00 201 164

* 00 201 165 00 201 166 00 201 167 00 201 168 00 201 169

12

11.8 No.2 1600 201 180 00 201 181 00 201 182 00 201 183 00 201 184

* 00 201 185 00 201 186 00 201 187 00 201 188 00 201 189

12.7 ISO 1600 201 190 00 201 191 00 201 192 00 201 193 00 201 194

* 00 201 195 00 201 196 00 201 197 00 201 198 00 201 199

15.5 ISO 1600 201 200 00 201 201 00 201 202 00 201 203 00 201 204

* T0 601 048 00 201 205 00 201 206 00 201 207 00 201 208 00 201 209

17.8 No.3 2000 200 724 00 201 147 00 201 138 00 201 140 00 201 142

* 00 200 595 00 201 148 00 201 139 00 201 141 00 201 143

15

17.8 No.3 2000 201 220 00 201 221 00 201 222 00 201 223 00 201 224

* 00 201 225 00 201 226 00 201 227 00 201 228 00 201 229

19 ISO 2000 201 230 00 201 231 00 201 232 00 201 233 00 201 234

* 00 201 235 00 201 236 00 201 237 00 201 238 00 201 239

* Blind drilling

- 25 -

Cambered extensions

D1 Cone D2 Cone D3 E L Ref. ARO

12 ISO

8.9 ARO No.1 13 20 80 /

11.8 ARO No.2 13 20 80 /

12.7 ISO 13 20 80 /

15.5 ISO 16

6 63 T0 601 056

12 63 T0 601 057

18 63 T0 601 058

20 100 00 201 905

17.8 ARO No.3 20 20 100 00 201 325

19 ISO 20 20 100 /

D Cone Reference

15.5 10% 00 201 145

17.8 10% 00 201 146

- 26 -

Straight and camberedextensions

D1 Cone D2 Cone D3 L1 L2 ref. ARO

11.8 ARO No.2 11.8 ARO No.2 16 45 14 00 201 320

12.7 ISO 12.7 ISO 16 47 16 00 201 321

15.5 ISO 12.7 ISO 16 60 20 00 201 322

17.8 ARO No.3 11.8 ARO No.2 20 70 20 00 201 323

19 ISO 15.5 ISO 20 75 25 00 201 324

17.8 17.8 20 100 20 00 201 792

D1 Cone D2 Cone D3 L1 L2 E ref. ARO

11.8 ARO No.2 11.8 ARO No.2 16 75 14 16 00 201 545

12.7 ISO 12.7 ISO 16 77 16 16 /

15.5 ISO 12.7 ISO 16 90 20 16 /

17.8 ARO No.3 11.8 ARO No.2 20 90 20 20 00 201 296

19 ISO 15.5 ISO 20 90 25 20 /

- 27 -

Straight extensions

D1 ConeL = mm

40 50 63 80 100

12 ISO

00 201 240 00 201 241 00 201 242 00 201 243 00 201 244

* 00 201 245 00 201 246 00 201 247 00 201 248 00 201 249

15 ISO

00 201 250 00 201 251 00 201 252 00 201 253 00 201 254

* 00 201 255 00 201 256 00 201 257 00 201 258 00 201 259

* blind hole

D1 ConeL = mm

40 50 63 80 100

17.8 No.3 00 201 260 00 201 261 00 201 262 00 201 263 00 201 264

15.5 ISO 00 201 265 00 201 266 00 201 267 00 201 268 00 201 269

- 28 -

Electrode-holder subassemblyMorse taper attachment

Centered modelRef. WG 900 273

Left-hand modelRef. WG 900 275

Right-hand modelRef. WG 900 274

to be cut to lenght

to be cut to lenght

to be cut to lenght

- 29 -

Electrode-holder subassemblyClamp attachment

Center clamp modelRef. WG 900 276

Right-hand clamp modelRef. WG 900 277

Left-hand clamp modelRef. WG 900 278

to be cut to lenght

to be cut to lenght

to be cut to lenght

- 30 -

Electrode holder

These electrode holders are made of two parts : a chromium copper body which is attached to the arm of the welding

machine, a cadmium-plated steel cap that

clamps the electrode, clamping isensured by 10 hex head socketscrews or 12 hex head socketscrews.

These electrode holders should preferablybe attached with 16 mm studs and anormal nut and a steel washer externaldiameter 45 mm, thickness 5 mm.

For flat-arm models for upright or tilted electrode bodies *

k w b g t f Model Code

25 140 50 60103 50 straight T0636012

98 50 tilted T0636013

30 200 60 75 154 50 straight

31.5 150 60 75 10450 straight T0636014

58 tilted T0636015

31.5 200 60 75 154 50 straight T0636016

40 200 60 85 154 50 straight T0636017

This electrode holder is more especially designed for machines giving aclamping force of 2 to 4 tonnes. Cap clam-ping is obtained using 4 10 hex headsocket screws.

This electrode holder should preferably beattached with two 24 mm studs and anormal nut and a washer external 60 mm, thickness 6 mm.

w t Code

270 193 T0636011

* The non-functional dimensions are rough cast

- 31 -

Electrode holder

These electrode holders are made of two parts: a chromium copper body which is attached to

the arm of the welding machine, a cadmium-plated steel cap that clamps the

electrode shank, clamping is ensured by 10hex head socket screws.

For flat-arm models for horizontal electrodes *

k w b g t h Code25 174 50 60 104 40 T0636022

30 185 60 75 104 45

31.5 185 60 75 104 45 T0636026

These electrode holders are made of two parts: a chromium copper body which is attached to the

arm of the welding machine, a cadmium-plated steel cap that clamps the elec-

trode shank, clamping is ensured by 10 hexhead socket screws.

Maximum force applicable to these electrode holders fit-ted with electrodes T0636018-019:for the T0636025 model: 3250 Nfor the T0636027 model: 5000 N

For round arms

k b g h j a Code25 50 60 33 31.5 19 T0636025

30 60 75 35 30 25

30 60 75 35 25 25

31.5 60 75 35 31.5 25 T0636027

* The non-functional dimensions are rough cast

- 32 -

Electrode holder

The electrode holder A should preferably be atta-ched with 2 studs 16 mm and 2 normal nuts alongwith 2 steel washers external 45 mm, thickness5 mm.

Models with intermediate part A *

Model Codestraight T0636028

inclined at 15 T0636029

Delivered with 1 straight fitting + 1 elbow fitting and2 installed plugs.Electrode holder B must be attached with 4 screws 12 mm on press platens.

Models with intermediate part B *

Model Codestraight T0636030

The intermediate part C is installed in electrode hol-der A and B.

Models with intermediate part C

* The non-functional dimensions are rough cast.

a c h Model Code

15.5 20

30 short T0621031

68 long T0621032

120 long T0621033

19 2530 short T0621034

73 long T0621035

- 33 -

Maximum force applicable to the electrode tip: straight model: 1200 daN inclined model: 800 daN

For flat-arm simple models for built-in electrode tips *

a c j h Model Code

15.5 20 2542 straight T0636079

40 inclined T0636080

17.8 25 30 60 straight T0636089

19 25 3060 straight T0636081


Maximum force applicable to the electrode tip:for model T0636033 : 3250 Nfor model T0636084 : 3250 Nfor model T0636034 : 5000 Nfor model T0636085 : 5000 N

For round-arm simple offset models for built-in electrode tips *

a c j k h g Model Code

15.5 20 25 31.548

28straight T0636033


17.8 20 25 2548

28straight /

45 inclined /

17.8 20 25 3048

28straight 00352267

45 inclined /

19 25 30 4062

30straight T0636034


* The non-functional dimensions are rough cast.

Electrode holder

- 34 -

Electrode holdersMOS - MB PB

Electrode (cone) h (mm) reference

Centered electrode holder

No. 2 82 WH 900 106

No. 3 87 WH 900 107

No. 4 87 WH 900 111

Same with extension

No. 2 200 WH 900 114

No. 3 200 WH 900 115

No. 4 200 WH 900 116

with clamp for 20 extension 00 359 229

Machines

Connection and attachmentkit (for 1 electrode holder)

MOS H0 159 692

MB HMF07 020

PB H0 359 378

Electrode holderswith/without platenwith clamp4 holes 12.5

- 35 -

Horizontal-electrodesimple models

These electrodes can be installed in T0636022 or T0636025 type electrode holders.

Model Code

Straight T0636018

Tilted T0636019

- 36 -

Used for quick removal of standard electrodes and end fittings up to 20 mm, andelectrodes from 10 to 22 mm, in complete safety for the user, while protecting theelectrode's cone and the extension.

Electrode removal wrench

Model Codestrengthened 64 400 200

light 64 400 201

Reamers for electrode holder mounts

Cone CodeNo. 1 - 9.1 mm 280 87 508No. 2 - 12 mm 280 87 900No. 3 - 18 mm 280 86 642No. 4 - 25 mm 280 88 002

Metal sheet protection aerosol KT-66/77-II

Thanks to its anti-adhesive properties, this 2-in-1 productensures the protection of metal sheets, nozzles and MIGcontact tubes.It creates a greasy film that protects against the nicks causedby incandescent and carbon particles.Non-flammable product.Can be used for tools and resistance welding guns.

Reference 93 390 011

Jar of contact grease, 1 kg74 940 201

Accessories

- 37 -

Accessories

Description

NB Aerosol (boron nitride) is a colloidal suspension of micronizedboron nitride which, when sprayed on to the tools, leaves a highlyadhesive protective white film after a few seconds' drying.

Applications

Protection of robot welding parts and of ancillary equipment liable to receive weldsparks. Over time they form a highly adhesive deposit which can only be removedmechanically.NB Aerosol eliminates this problem.

Advantages

Absence of deposits on the equipment, the projections of molten metal no longerstick to the exposed surfaces.Removes the need to perform the welding gun cleaning operations, hence a timesaving when carrying out maintenance operations.Excellent resistance of the boron nitride film at high temperature.

Packaging

Aerosol 400 ml.Non-flammable propellant, no effect on the ozone layer.

Reference 93 390 025

Aerosol for protecting tools against weld projections

- 38 -

Direct attachment elastomer heads TEBL - 500 and 1000TECL - 500 and 1000

TEBL: elastomer head with 20 clamp, for extension and caps TECL: elastomer head with No.3 17.8 cone, for direct electrode attachment

The flexibility of the elastomer head makes it possible to compensate for the differences oflevels and spread the forces evenly over the metal sheets.Direct mounting on a welding machine by means of a pad. The center distance between the2 heads is at least 31 mm.

- double guide on wear bushings,- silver-plated shunt,- rapidly interchangeable spare parts,- cooled electrode holder.

Narrow attachment elastomer heads TEBE - 500 and 1000TECE - 500 and 1000

TEBE: narrow elastomer head with 20 clamp, for extension andcaps

TECE: narrow elastomer head with No. 3 17.8 cone, for directelectrode attachment

The finesse of the elastomer heads makes it possible to place several heads sideby side. The minimum center distance is 31 mm. These heads are attached to theslotted platen by means of an attachment plate that is generally water-cooled.The flexibility of the elastomer heads makes it possible to com-pensate for the differences of levels and spread the forcesevenly over the metal sheets.

- double guide on wear bushings,- silver-plated shunt,- rapidly interchangeable spare parts,- swivel clamp positioning,- cooled electrode holder.

Elastomer heads

- 39 -

Electrode holderPESS-E - PESS-V

Clinker-blower electrode holder

PESS-E : Clinker-blower electrode holder for nuts PESS-V : Clinker-blower electrode holder for screws

Depending on the type of parts to be welded (nuts or screws), this water-cooled assemblymakes it possible to center them with respect to the drilling in the sheet, thanks to the guidedevice. Its clinker-blower system, which functions during the welding cycle, reduces thearcing phenomena and lengthens the electrodes' service life. The assembly is installeddirectly on the platen of a welding machine by means of a mounting pad.

Depending on the electrodes and pilots, possibility of welding:- M3 - M4 - M5 - M6 - M8 - M10 nuts,- M5 - M6 - M8- M10 screws.

Delivered with one electrode and one pilot depending onthe type of parts to be welded.

General view of the PESS-E

Example of nut welding

- 40 -

CESS shank for welding nuts with clinker-blower

The guide device makes it possible to center the nuts with respect to the dril-ling in the sheet.The clinker-blower system, which functions during the welding cycle, reducesthe arcing phenomena and lengthens the electrodes' service life.This assembly is used on a spot welding machine.

- shank 25, 30 and 40, length 275 mm or 180 mm,- air supply for blowing off the clinker,- water box and cooling injector,- interchangeable electrode and pilot,- possibility of checking the nut direction with the DPS (Nut Presence/Direction Detector)box.

CVSS shank for welding screws with clinker-blower

The guide device makes it possible to center the screw.The clinker-blower system, which functions during the welding cycle, reduces the arcingphenomena and lengthens the electrodes' service life.This assembly is used on a spot welding machine.

- shank 25, 30 and 40, length 275 mm or 180 mm,- air supply for blowing off the clinker,- water box and cooling injector,- interchangeable electrode and pilot,- possibility of checking the presence and length of the screw with the DPS

(Nut Presence/Direction Detector) box.

Connecting rods

- 41 -

Pneumatic hand grinder

AICHI SANGYO grinder

TDETD18A : electrode diameter 9 to 18 mm TDETD25A : electrode diameter 19 to 25 mm

- Operation possible with one hand.- Simple, patented electrode plating system.- Modular milling grinder, quick and easy positioning.

- 42 -

Mechanical dynamometer

Ref. 70 800 003 from 0 to 1000 daN Ref. 70 800 004 from 0 to 2000 daN

The 334 series universal mechanical dynamometers have been designedfor the static measurement of forces.

The compression forces applied to the bearing points cause a deformationof the keyway. This results in a movement of the built-in measurement rod,which is transmitted to the comparator. The compression forces are indica-ted in the clockwise direction. The slight thickness between the bearingpoints makes it possible to use universal, robust and precise dynamome-ters, where other measuring apparatus cannot be used because of theirsize.

Delivered with a plastic case and a calibration certificate.

Thickness between the bearing points:- 18 mm for the 70 800 003,- 25 mm for the 70 800 004.

Digital dynamometer

Ref. 70 800 010 version 500 daN Ref. 70 800 011 version 1500 daN Ref. 70 800 012 version 3000 daN

Specially developed for ARO, this new digital dynamometer offers all theadvantages of an advanced technology combined with ARO's experiencein resistance welding.Proposed in three versions 500, 1500, 3000 daN its rigid construc-tion allows it to accept forces up to 4500 daN without the slightestproblem

- dimensions: 280 x 85 x 35 mm,- thickness between pads : 23 mm,- weight: 685 gr,- precision: less than 0.6 % of the measured value,- power supply: 1 standard 9 V battery.

Besides the direct reading of the measured force, it offers the possibility of freezing themeasurement at any moment in the cycle, and of storing it until resetting.Supplied with its battery, calibration certificate for ISO 9000, user's manual and storage box.

Dynamometers

ARO S.A.S.1, avenue de Tours - BP 40161 - 72500 CHATEAU-DU-LOIR - FRANCE

Tel: 33 (0) 2 43 44 74 00 - Fax: 33 (0) 2 43 44 74 01E-mail: [email protected] - http: //www.aronet.com

Nine distribution and service subsidiaries and one subsidiary dedicated to welding electronics:ARO Controls SAS

A proximity service in FranceNorth Paris Region -Normandy

ILE DE FRANCEARO SASRegional Agency60250 ANGYTel./Fax 03 44 26 36 48e-mail: [email protected]

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West

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East

CHAMPAGNE-ARDENNES19, av. du 29 Aot 194451430 TINQUEUXTel: 03 26 04 18 97Fax: 03 26 04 08 17e-mail: [email protected]

EAST1, route des chalets67730 LA VANCELLETel: 03 88 57 93 82Fax: 03 88 57 90 47e-mail: [email protected]

BOURGOGNE-FRANCHE COMTE10, rue du vieux noyer21910 CORCELLES-LES-CITEAUXTel: 03 80 36 97 00Fax: 03 80 36 91 60e-mail: [email protected]

South

ALPES-DAUPHINEMIDI-PACAARO SASRegional Agency38420 LE VERSOUTel: 04 76 51 53 52Fax: 04 76 51 51 14e-mail: [email protected]

ARO SCHWEISSMASCHINEN GmbHBlcherstrae 135 b86165 AUGSBURGDeutschlandTel.: 49 (0) 821 797 1980Fax: 49 (0) 821 797 1976E-mail: [email protected]

ARO SOUDOMETALRESISTANCE WELDING SA - N.V.Riverside Business Park55/15 Bd Internationa(a)llaan1070 BRUXELLES/BRUSSELBelgique/BelgeTel.: 32 (2) 555 07 50Fax: 32 (2) 523 20 24E-mail: [email protected]

ARO ESPAOLA SACalle Gav, 71-7508014 BARCELONAEspaaTel.: (34) 93 421 21 11Fax: (34) 93 432 01 90E-mail: [email protected]

SAVAIR INC.48500 Structural DriveCHESTERFIELD TOWNSHIP, MI 48051United StatesTel.: (1) 586 849 9353Fax: (1) 586 949 4493E-mail: [email protected]

AROSOUDAGE ABBox 85430 33 FJRS - SverigeTel.: + 46 (0) 300-543988Fax: + 46 (0) 300-543989E-mail: [email protected]

AROMEXICANA S.A de CVProlongacin 51 Poniente n5106Fraccionamiento Estrellas del Sur72190 PUEBLA PUE - MexicoTel.: (52) 222 230 00 37Fax: (52) 222 248 20 65E-mail: [email protected]

ARO WELDING LTDUnit 4 Fairfield CourtSeven Stars Industrial EstateCoventry West Midlands CV3 4LJ U-KTel. : 44 (0) 2476 214320Fax: 44 (0) 2476 511502E-mail: [email protected]

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ARO Controls SASZI de Mont sur Loir 72500 CHATEAU-DU-LOIR FranceTel.: 33 (0)2 43 44 74 00E-mail: [email protected]

Nine subsidiaries worldwideA proximity service in France

The information and illustrations given in this brochure are based on the technical characteristics of the products at the timewhen this document was printed. Within the scope of its continued product improvement policy, ARO reserves the right tomodify at all times the technical specificities of its products. This brochure includes information of a general character andis not a contractual document.The material in this brochure cannot be reproduced without formal authorization from ARO S.A.S.

ARO S.A.S.1, avenue de Tours - BP 4016172500 CHATEAU-DU-LOIR FRANCETel.: 02 43 44 74 00Fax: 02 43 44 74 01E-mail: [email protected]: //www.aronet.com C

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