The Hermes product program for grinding and fi nishing implants …devabrasive.in › wp-content ›...

Surfaces for life.The Hermes product program for grinding and fi nishing implants and surgical instruments

A B R A S I V E S

AT HERMES, TRADITION HAS A FUTURE

Hermes Schleifmittel is a German company located in Hamburg, with roots going back

to 1927. The company is one of the world’s key manufacturers of coated abrasives,

and since 1993, it has also occupied a leading market position in the production of

precision bonded abrasives.

Hermes owes this market position to its insistence on unsurpassed quality. We feel an

obligation to this tradition and it is our main priority for the future. This obligation is the

greatest incentive there is, and we devote all our energy and commitment to it – tradition

shaping the future.

Hermes maintains numerous production sites and sales offices in all the main industrial

and emerging countries of the world, underlining its international commitment and its

efforts to provide its customers with a competent local consulting service.

A SELECTION OF OUR SITES

CONTENTS

Hermes – a competent “grinding” partner all over the world

Knowing how to grind and finish implants and surgical instrumentsPage 4

Whatever the situation – Hermes products for pre-grinding and intermediate grinding and finishingPage 6

Hermes bonded abrasives – we find individual solutions for pre-grinding and for the final polishPage 8

Visit our websitePage 10


1 | Headquarters in Hamburg, Germany

2 | Hermes Schleifkörper GmbH,

Dresden, Germany

3 | Hermes Austria

4 | Hermes USA

5 | Hermes China

1 5

4

2

3

2

QUALITY – OUR TRADEMARK

Bound to tradition on the one hand, yet a pioneering developer of innovative products

on the other, Hermes places greatest emphasis on the production of high-quality,

state-of-the-art abrasives.

To enable this high standard of quality to be pursued and expanded still further in the

future, the TÜV NORD CERT auditing company awarded the Hermes Group the quality

seal for meeting the requirements of DIN EN ISO 9001.

Our customers – in other words you – benefi t considerably from this reliability.

SUPPORTING NATURE AND THE ENVIRONMENT

Compliance with national and international laws and regulations is one of the key principles

of Hermes corporate policy and protection of the environment is a core constituent of

our corporate responsibility.

As a consequence, as long ago as 1996, Hermes was the fi rst European abrasives factory

to be successfully audited on a voluntary basis in line with the EMAS (Eco-Management

and Audit Scheme).

The management system currently being implemented covers all areas of the company, with

processes relevant to the environment, as well as to quality, being described and monitored

internally as well as certifi ed externally by the TÜV-Nord organization in line with DIN EN

ISO 14001:2009.


Hermes France

Hermes France

Hermes France

Hermes Canada

Hermes Great Britain



Hermes USA

Hermes Germany

Hermes Germany

Hermes Germany

Hermes Austria

Hermes Poland

Hermes Poland

Hermes Poland

Hermes Romania

Hermes Bulgaria

Hermes China

Hermes Singapore

Hermes China

Hermes Singapore

Hermes Austria Hermes Romania

Hermes China

Hermes Singapore

Hermes China

Hermes Singapore

Hermes USA Hermes Austria Hermes Canada Hermes USAHermes Canada

Hermes France Hermes Great Britain Hermes Germany

Hermes BulgariaHermes Bulgaria

Hermes Germany

3

Knowing how to grind and finish implants and surgical instruments

Photo: SHL, Germany

The demand for orthopaedic implants and surgical instruments is

rising steadily worldwide. The quality required from these kinds

of products is enormously high.

As a consequence, strict demands are also placed on the abrasi-

ves used to make these products: defined characteristic surface

values with low tolerances and rapid throughputs throughout the

entire grinding process. Hermes satisfies these requirements with a

complete product program for every processing step (pre-grinding –

intermediate grinding – finishing), the quality and economy of which

are most convincing of all.

PRE-GRINDING

The pre-grinding stage grinds cast, forged or rough-cut blanks of

implants or instruments, the majority made of stainless steel, titanium

or chromium-cobalt alloys, using mainly grit sizes 36, 60 and 80.

Primary applications

• Deburring and even out marks of cutting operations from initial

production (e.g. turning or milling)

• Removing surface changes, e.g. layers of scale or tempering

colors from preceding heat treatment processes

• Grinding to particular dimensions and shapes

This requires abrasives with convincing stability, high stock removal

rates and long tool lives. To select the right abrasive, the backing

needs to be as rigid as possible but as flexible as necessary.

The most temperature-intensive grinding of the workpiece takes place

at the pre-grinding stage and to ensure that entrained heat does not

cause any structural changes to the workpiece surfaces, Hermes

grinding belts are generally provided with an additional coating with

grinding aid for this process step to ensure “cool” grinding.

Recommended Hermes types

• High-performance belts with ceramic grain

CN 466 Z, CR 456 Z, CN 466 X-flex

• Zirconia alumina grinding belts

RB 486 44 Z, RB 486 24 YX

• Aluminum oxide grinding belt

RB 346 X-flex

4

Knowing how to grind and finish implants and surgical instruments

Stoc

k re

mov

al r

ate

(cum

.) [g

]

Grinding time [min]

30

0

60

90

120

150

0 1 2 3 4 5 6 7

CR 456 J-flex

RB 406 J-flex

RB 346 J-flex

Parameters: stainless steel, grit size P 120, stationary belt grinder

Stock removal comparison of Hermes J-flex cloth grinding belts

INTERMEDIATE GRINDING

Intermediate grinding serves primarily to prepare the surfaces of the workpiece as well

as possible for subsequent fi nishing processes. Intermediate grinding uses mainly grit

sizes 100, 120, 150 and 180.


• Elimination of coarse marks of pre-grinding

• Reduction in surface roughness

The end-fi nish desired by the customer defi nes the number of intermediate grinding steps

and grit sequences required.

FINISHING

The fi nishing gives workpieces their fi nal touch. The main grit sizes used are correspon-

dingly fi ne: 220 and fi ner.


• Production of uniform visual/functional surfaces whilst maintaining characteristic

surface values determined by specifi cations

(e.g. degrees of gloss or roughness)

• Preparation for subsequent polishing operations

(e.g. grinding with Hermes microlite polishing wheels)

A special role is played by Hermes webrax abrasive web products which are used in the

form of belts or wheels and are especially suitable for matte fi nishing stainless steel surfaces.

Recommended Hermes types

• High-performance belts with

ceramic grain CR 456 Z,

CN 466 X-fl ex, CR 456 J-fl ex

• Zirconia alumina grinding belt

RB 486 24 YX

• Aluminum oxide grinding belts

RB 417 YX, RB 346 MJ,

RB 346 X-fl ex, RB 406 J-fl ex

• Recommended Hermes types

• High-performance belt with

ceramic grain CR 456 J-fl ex

• Aluminum oxide grinding belts

RB 346 MJ, RB 346 X-fl ex,

RB 346 J-fl ex, RB 306 J-fl ex,

RB 406 J-fl ex

• webrax abrasive web tools

webrax-AN 702 belt

webrax-OA 713 GWS convoluted wheels

webrax-OA 710 LMO fl ap wheels

5

Whatever the situation – Hermes products for pre-grinding and intermediate grinding and finishingHermes types

CN 466 Z CR 456 Z RB 486 44 Z RB 486 24 YX RB 417 YX RB 346 MJ CN 466 X-fl ex RB 346 X-fl exHeavy-duty, stiff, high-performance

abrasive cloth with ceramic grain and additional active ingredient coating, especially suitable for high grinding

pressures

Heavy-duty, stiff, high-performance abrasive cloth with ceramic grain and additional active ingredient coating,

especially suitable for grinding titanium and for moderate grinding

pressures

Heavy-duty, stiff zirconia alumina abrasive cloth with additional active ingredient coating for low grinding

temperatures

Heavy-duty, semi-stiff zirconia alumina abrasive cloth with additional

active ingredient coating for low grinding temperatures, especially

suitable for dry-grinding stainless steel

Heavy-duty, semi-stiff aluminum oxide abrasive cloth with additional

active ingredient coating for universal application in grinding surgical

instruments

Flexible aluminum oxide abrasive cloth with very good edge-restoring

force for universal applications in grinding surgical instruments,

especially in manual grinding

Flexible, high-performance abrasive cloth with ceramic grain and with

additional active ingredient coating for low grinding temperatures

In comparison to RB 346 MJ light more fl exible aluminum oxide abrasive cloth with very good edge-restoring

force for universal application in grinding surgical instruments,


Grit range + 36 to + 80 + 36 to + 120 + 36, + 40, + 60, + 80 + 36, + 40, + 60, + 80, + 120 + 60 to + 120 P 60 – P 800 + 60 to + 240 P 60 – P 320, P 400FlexibilityPrimary applicationsImplants – – – – –Surgical instruments

MaterialsStainless steel

Titanium – – – – – –Chrome-Cobalt alloys – –Suitability for processPre-Grinding – –

Intermediate grinding – –

Finishing – – – – – –

Hermes types

RB 306 J-fl ex CR 456 J-fl ex RB 406 J-fl ex RB 346 J-fl ex webrax-AN 702 webrax-OA 713 GWS webrax-OA 710 LMO microlite-Polishing wheels Very fl exible and adaptable aluminum oxide abrasive cloth with good stock

removal rate for universal applications in grinding surgical instruments

Very fl exible and adaptable high-per-formance abrasive cloth with ceramic grain and additional active ingredient

coating, especially suitable for chrome-cobalt alloys and titanium

Very fl exible and adaptable aluminum oxide abrasive cloth with special

active ingredient bonding, especially suitable for grinding stainless steel

Highly fl exible aluminum oxide abrasive cloth with good stock

removal rates for universal applicati-ons, especially suitable for grinding

smallest workpiece radii

Cloth-reinforced abrasive web with a fi ne grinding pattern, especially suitable for fi nishing and matte

fi nishing stainless steel surfaces

Convolutely wrapped, high-density and sturdy abrasive web wheel with

aluminum oxide grain, especially suitable for matte fi nishing stainless

steel surfaces

Flexible but strong abrasive web fl ap wheel with aluminum oxide grain,

especially suitable for matte fi nishing stainless steel surfaces

Elastic and individually adjustable polyurethane-based polishing wheel with silicon carbide grain, especially suitable for producing very fi ne and

high-quality surfaces

Grit range P 60 – P 320, P 400 + 80 to + 220 P 60 – P 320, P 400 P 40 – P 400, P 600 + 80, + 100, + 180, + 280, + 320, + 400 + 100, + 180, + 280 + 80 to + 120, + 180, + 280 F 16 - F 600 (F 800)FlexibilityPrimary applicationsImplants – –

Surgical instruments –MaterialsStainless steel

Titanium – – –

Chrome-Cobalt alloys – –

Suitability for processPre-Grinding – – – – – –Intermediate grinding – – – –Finishing

Stiff Semi-stiff Flexible Very fl exible Highly fl exible 6

Whatever the situation – Hermes products for pre-grinding and intermediate grinding and finishingHermes types

CN 466 Z CR 456 Z RB 486 44 Z RB 486 24 YX RB 417 YX RB 346 MJ CN 466 X-fl ex RB 346 X-fl exHeavy-duty, stiff, high-performance

abrasive cloth with ceramic grain and additional active ingredient coating, especially suitable for high grinding

pressures

Heavy-duty, stiff, high-performance abrasive cloth with ceramic grain and additional active ingredient coating,

especially suitable for grinding titanium and for moderate grinding

pressures

Heavy-duty, stiff zirconia alumina abrasive cloth with additional active ingredient coating for low grinding

temperatures

Heavy-duty, semi-stiff zirconia alumina abrasive cloth with additional

active ingredient coating for low grinding temperatures, especially

suitable for dry-grinding stainless steel

Heavy-duty, semi-stiff aluminum oxide abrasive cloth with additional

active ingredient coating for universal application in grinding surgical

instruments

Flexible aluminum oxide abrasive cloth with very good edge-restoring

force for universal applications in grinding surgical instruments,


Flexible, high-performance abrasive cloth with ceramic grain and with

additional active ingredient coating for low grinding temperatures

In comparison to RB 346 MJ light more fl exible aluminum oxide abrasive cloth with very good edge-restoring

force for universal application in grinding surgical instruments,


Grit range + 36 to + 80 + 36 to + 120 + 36, + 40, + 60, + 80 + 36, + 40, + 60, + 80, + 120 + 60 to + 120 P 60 – P 800 + 60 to + 240 P 60 – P 320, P 400FlexibilityPrimary applicationsImplants – – – – –Surgical instruments

MaterialsStainless steel

Titanium – – – – – –Chrome-Cobalt alloys – –Suitability for processPre-Grinding – –

Intermediate grinding – –

Finishing – – – – – –

Hermes types

RB 306 J-fl ex CR 456 J-fl ex RB 406 J-fl ex RB 346 J-fl ex webrax-AN 702 webrax-OA 713 GWS webrax-OA 710 LMO microlite-Polishing wheels Very fl exible and adaptable aluminum oxide abrasive cloth with good stock

removal rate for universal applications in grinding surgical instruments

Very fl exible and adaptable high-per-formance abrasive cloth with ceramic grain and additional active ingredient

coating, especially suitable for chrome-cobalt alloys and titanium

Very fl exible and adaptable aluminum oxide abrasive cloth with special

active ingredient bonding, especially suitable for grinding stainless steel

Highly fl exible aluminum oxide abrasive cloth with good stock

removal rates for universal applicati-ons, especially suitable for grinding

smallest workpiece radii

Cloth-reinforced abrasive web with a fi ne grinding pattern, especially suitable for fi nishing and matte

fi nishing stainless steel surfaces

Convolutely wrapped, high-density and sturdy abrasive web wheel with

aluminum oxide grain, especially suitable for matte fi nishing stainless

steel surfaces

Flexible but strong abrasive web fl ap wheel with aluminum oxide grain,

especially suitable for matte fi nishing stainless steel surfaces

Elastic and individually adjustable polyurethane-based polishing wheel with silicon carbide grain, especially suitable for producing very fi ne and

high-quality surfaces

Grit range P 60 – P 320, P 400 + 80 to + 220 P 60 – P 320, P 400 P 40 – P 400, P 600 + 80, + 100, + 180, + 280, + 320, + 400 + 100, + 180, + 280 + 80 to + 120, + 180, + 280 F 16 - F 600 (F 800)FlexibilityPrimary applicationsImplants – –

Surgical instruments –MaterialsStainless steel

Titanium – – –

Chrome-Cobalt alloys – –

Suitability for processPre-Grinding – – – – – –Intermediate grinding – – – –Finishing

Different degrees of hardness possible Highly suitable Suitable Less suitable Highly suitable Suitable Less suitable Highly suitable Suitable Less suitable – 7

Hermes bonded abrasives – we find individual solutions for pre-grinding and for the final polish

Hermes Schleifkörper GmbH in Dresden is one of Europe’s leading

bonded abrasives factories. Its extensive product portfolio enables

Hermes to provide customers with application-specific and highly

economical solutions for processes which both precede and follow

grinding with coated abrasives.

TRY US OUT. WE WOULD BE PLEASED TO ADVISE YOU. Our experts would be delighted to advise you on your specific

grinding task and will develop a customer-optimized solution

involving our abrasives. For contact and product information,

please visit our website at:

www.hermesabrasives.com

HERMES SUPERABRASIVES FOR CONSISTENT HIGH QUALITY AT A HIGH LEVEL OF AUTOMATION

A great benefit of vitrified-bonded Diamond/CBN abrasives is that

they can be dressed without subsequent sharpening. This increases

the degree to which the dressing process can be both reproduced

and automated, something which becomes especially clear when

large numbers of items are ground. It simultaneously guarantees

consistently high product quality.

The Hermes bonding system allows the porosity of the tool to be

adapted to a specific grinding task on an individual basis. Specific

adjustment of the ratio of abrasive to pores furthermore makes

it possible to keep grinding forces low and facilitate higher

performance in the grinding process.

In particular, Hermes Superabrasives make it possible

to grind economically high-alloyed steel which are

hard to cut. As implants and surgical instruments

are frequently made of stainless steel, titanium or

chrome-cobalt alloys, Hermes vitrified-bonded

Diamond/CBN abrasives are particulary suitable

for grinding workpieces of this nature.

These abrasives are characterized above all by

burr-free grinding of the materials mentioned; this

reduces re-grinding steps, improving the efficiency

and economy of the entire grinding process.

8

Hermes bonded abrasives – we find individual solutions for pre-grinding and for the final polish

HERMES MICROLITE POLISHING WHEELS FOR HIGH-QUALITY SURFACES

Hermes microlite polishing wheels satisfy the most discerning

requirements relating to the gloss and fine finish of surfaces when

a variety of materials are ground. They are elastic and their out-

standing adaptability makes them especially suitable for finishing

and micro-deburring.

An elastic, polyurethane-based bond incorporating silicon carbide

grain allows microlite polishing wheels to adapt to individually-

shaped workpiece surfaces.

The finishing results are fine surfaces with a high degree of trueness

to specified workpiece surfaces. In many cases, microlite polishing

wheels lead to grinding steps being saved during finishing and thus

to higher productivity and economy.

Hermes microlite polishing wheels should preferably be used where

high-quality surfaces cannot be achieved using other abrasives.

Grain Silicon carbide, green

Grit range F 16 - F 600 (F 800)

Bonding Polyurethane BU10 - BU70

Hardness 30° - 100° Shore A

Wheel Ø 40 mm - 400 mm

Wheel width 10 mm - 150 mm

Permitted cutting speed

Depending on hardness 18 m/s - 35 m/s

Product description

Bonding Hardness (Shore A)

BU10 Very soft 30° - 60°

BU20 Soft

BU30 Medium soft 60° - 80°

BU40 Medium

BU50 Medium hard

BU60 Hard 80° - 95°

BU70 Very hard

Bondings and hardness range

The diameter of the clamping flange should be 2/3 of the

diameter of the microlite polishing wheel.

The FEPA safety recommendations for the correct use of

bonded abrasives should be observed when grinding.

Safety instructions

Stock removal on the workpiece is determined to a significant

extent by the hardness and adaptability of the microlite

bonded abrasives.

Experience of grinding processes using conventional bonded

abrasives or coated abrasives cannot be transferred to microlite

bonded abrasives in terms of grit size and grinding pattern

achieved. Please ask our technical experts for references.

Conventional dressing tools can be used to profile microlite

bonded wheels.

Product engineering

Spanabnahme

HardnessLow High

AdaptabilityLow High

Stock removal

9

Visit our website

Hermes Group websites are continuously updated and form an important information

platform for customers and interested parties.

Here you will fi nd virtually all the information which is useful when planning and purchasing

Hermes abrasives.

Of course our website is set up on an international basis. Please use the different access

options to enable you to obtain information about Hermes abrasives tailored to your

specifi c regional market.

Europe

www.hermes-abrasives.com

North and Central America

www.hermesabrasives.com

Asia and Australia

www.hermesabrasives.com.cn

10

Hermes websites use databases to inform you about new pro-

ducts and application solutions and to provide you with facts

and fi gures about the Hermes Group.

Numerous useful functions help you fi nd out quickly and easily

everything you need to know about Hermes abrasives. In the

“Product Finder” for example, enter simple search queries to fi nd the

correct Hermes type and have its key product information (such as

product structure and benefi ts) and primary applications displayed.

Alternatively, use the interactive “Contact Finder” for a list of Hermes

experts (both offi ce-based and sales) – all over the world, of course.

Regardless of where you are on our websites, whether in the

“Product Finder” or in the application solutions or in the “Service”

area – you always have the option of downloading information about

our products and application solutions for immediate use on your

PC, tablet or smartphone.

Try us out.

We look forward to your visit.

11

HERMES ABRASIVES LTD.

524 Viking Drive Virginia Beach, VA 23452

Voice: 757-486-6623 | 1-800-464-8314 Fax: 757-431-2370

[email protected] www.hermesabrasives.com

231 US 21.21 . The right to make amendments is reserved.

79; Shiv Ganga Industrial Estate;Lakeshwari; Bhagwanpur; Roorkee Uttrakhand; INDIA 247667.Tel: +91 - 98334 45444Web: www.devabrasive.inE-mail: [email protected]

Dev AbrasiveAuthorised Distributor for India

The Hermes product program for grinding and fi nishing implants …devabrasive.in › wp-content ›...

Documents

Transcript of The Hermes product program for grinding and fi nishing implants …devabrasive.in › wp-content ›...