Post on 08-Jan-2018
description
WELD JOINT GEOMETERY AND WELDING SYMBOLS
A Joint:
A configuration of members
A Weld:
A union between materials caused by heat, and or pressure
Terminology & DefinitionsTerminology & Definitions
Edge Open & Closed Corner Lap
TeeCruciform
Butt
Joint TerminologyJoint Terminology
Compound Fillet Butt
Edge Spot Plug
Welded Joint TerminologyWelded Joint Terminology
Butt WeldsButt Welds
Single Bevel VeeSingle
Single J Single U
Single sided preparations are normally made on thinner materials, or when access form both sides is restricted
Single sided Butt PreparationsSingle sided Butt Preparations
Double sided preparations are normally made on thicker materials, or when access form both sides is unrestricted
VeeDoubleBevelDouble
JDouble UDouble
Double sided Butt PreparationsDouble sided Butt Preparations
Weld Zone TermsWeld Zone Terms
Weld Junction
C
A B
D
Weld zone
Heat Affected Zone
Root
Weld metal
A, B, C & D = Weld Toes
Fusion zone
Face
Butt Weld FeaturesButt Weld FeaturesWeld cap width
Excess Root Penetration
ExcessCap heightor Weld Reinforcement
Root bead width
Fillet WeldsFillet Welds
b
b. = Horizontal leg length
a
a. = Vertical leg length
Fillet Weld Leg LengthsFillet Weld Leg Lengths
Fillet Weld Throat ThicknessFillet Weld Throat Thickness
ba
b. = Actual Throat Thickness
a. = Design Throat Thickness
Deep Penetration Fillet Weld FeaturesDeep Penetration Fillet Weld Features
ba
b. = Depth of Penetration
a. = Design Throat Thickness
a
a = Design / Theoretical throat thickness
s
s = Actual throat thickness
b
b = Horizontal leg lengthcc = Vertical leg length
The leg length should be approximately equal to the material thicknessThe design throat thickness is 0.7 of the leg length
e.gLeg length = 6mmDesign Throat = 6mm x 0.7Design Throat = 4.2mm
Fillet Weld DimensionsFillet Weld Dimensions
Mitre fillet Convex fillet
Concave fillet
A concave profile is preferred for joints subjected to fatigue loading
Fillet Weld ProfilesFillet Weld Profiles
Welding PositionsWelding Positions
Flat: PA / 1G: Flat PA / 1F
Horizontal vertical: PC / 2G:
Horizontal vertical: PB / 2F:
Horizontal overhead PD / 4F
OverheadPE / 4G
Vertical downwards PG / 3G
Vertical upwardsPF / 3G
Welding PositionsWelding Positions
Weld: FlatPipe: rotatedAxis: Horizontal
PA / 1G Weld: Vertical DownwardsPipe: FixedAxis: Horizontal
PG / 5G
Weld: Vertical upwardsPipe: FixedAxis: Horizontal
PF / 5G
H-LO 45 / 6G Weld: Upwards Pipe: FixedAxis: Inclined
Weld: Horizontal vertical Pipe: FixedAxis: Vertical
PC / 2G
45o
Welding PositionsWelding Positions
IWE WELDING DESIGN PRE-COURSE
TYPE OF JOINTS
IWE WELDING DESIGN PRE-COURSE
TYPE OF JOINTS
IWE WELDING DESIGN PRE-COURSE
TYPE OF JOINTS
IWE WELDING DESIGN PRE-COURSE
TYPE OF JOINTS PREPRATION
IWE WELDING DESIGN PRE-COURSE
TYPE OF JOINTS PREPRATION
IWE WELDING DESIGN PRE-COURSE
TYPE OF JOINTS PREPRATION
IWE WELDING DESIGN PRE-COURSE
TYPE OF JOINTS PREPRATION
IWE WELDING DESIGN PRE-COURSE
TYPE OF JOINTS PREPRATION
IWE WELDING DESIGN PRE-COURSE
TYPE OF JOINTS PREPRATION
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
TYPES OF WELDS
IWE WELDING DESIGN PRE-COURSE
TYPE OF WELDS
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
BUTT WELDS
IWE WELDING DESIGN PRE-COURSE
BUTT WELDS
FULL PENETRATION
PARTIAL PENETRATION
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
FULL PENETRATION
IWE WELDING DESIGN PRE-COURSE
PARTIAL PENETRATION
IWE WELDING DESIGN PRE-COURSE
FILLET WELDS
IWE WELDING DESIGN PRE-COURSE
FILLET WELDS
FULL PENETRATION
PARTIAL PENETRATION
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
WELDING SYMBOLS
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
IWE WELDING DESIGN PRE-COURSE
GEOMETRICAL CHARACHTRESTICS
REVIEW EXCERSICES
Any QuestionsAny Questions
??