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WELDING PROCEDURE SPECIFICATION - WPS NO: 058
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TM-5-5420-279-23 Dry Support Bridge (DSB) (NSN
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WELDING PROCEDURE SPECIFICATION - WPS NO: 070
TM 5-5420-279-23
WPS No. 0069
WILLIAMS FAIREY ENGINEERING LTD.
APPROVAL REPORT:
WELDING PROCEDURE SPECIFICATION - WPS NO: 069
W.P.A.R. No: 18
Approved by:
Sheet No: 1
Issue: 1
Date: 09-09-98
K.L. No: 10280
Primary Specifications:
Material Specification:
Material Dimensions.
BS EN 729
DGFVE 232B
Thickness: 6 to 24mm
Pipe Dia: N/A
Type Of Joint:
Welding Process:
Welding Position:
Butt weld
Manual M.I.G.
PA
Joint Preparation:
Run Sequence & Weld Dimensions:
Preparation Method: Machining/Grinding. Degrease and wire brush before assembly
Welding Details:
Wire feed
Travel
Heat
Size of
Type of
Run No.
Process
Current A
Voltage
Speed
Speed
Input
filler metal
Current
M/Min
mm/Min
J/mm
1
M.I.G
1.6mm
240 - 300
22.5 - 28
DC + VE
7.2 - 9.7
1.6mm
240 - 280
22.5 - 28
DC + VE
7.5 - 9.7
Additional
M.I.G
runs
Filler Metal Classification & Trade Name: BS 2901 PT 4 TYPE 5556A
Gas Type Shielding: Argon
Gas flow Shielding:
Tungsten Electrode Type:
Backing: N/A
45 - 55 cu/ft/hr
N/A
Backing: N/A
Size: mm N/A
Details of Back Cutting / Backing: N/A
Preheat Temperature:
Interpass temperature:
Transfer Mode: Spray
Min +5C
Max 50C
Other Information:
Use run on run off plates as required.
Crater filling settings on PAC8 to be used when required.
Dress or remove all unsound tack welds.
Appendix K Page 76

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