S9074-AQ-GIB-010/248 Rev 1
Table A-3. Essential Elements of an FS Procedure 1/, 2/ - Continued
Repair of Friction Stirred Material
Element
FSW
FSP
Lateral FS tool offset Nominal lateral FS tool offset distance from joint and direction (see figure A-5) Interpass step-over distance and direction Step-over distance between passes and direction (advancing or retreating side) relative to the preceding pass or weld Number of passes and direction Total number and travel direction of each pass relative to the preceding pass
X
--
X
--
X
X
X
X
X
Shielding gas Composition, flow rate
X
X
X
Thermal management method Specification of method employed for active or auxiliary heating or cooling of the friction stir tool, fixturing, base material(s), or machine component(s)
X
X
X
Preheat and interpass temperature limits
X
X
X
Post weld heat treatments
X
X
X
Post weld surface dressing
X
X
X
Exit hole placement
X
X
X
Exit hole removal procedure Mechanical means of removal intended during production Tack welding procedure Essential elements, method, length and frequency along length of joint line
X
X
X
X
X
X
Type and description of defect to be repaired
--
--
X
Qualified FSW, FSP, or fusion welding procedure being used in repair procedure Discard length Length of material removed from the ends of the qualification test assembly. The discard length shall be representative of the length of material to be removed in production. Probe-to-anvil gap (see figures A-7 and A-8) Maximum probe-to-anvil gap, including maximum material thickness, minimum probe length, plunge depth, and minimum heel plunge depth
--
--
X
X
X
X
X
X
X
Heel plunge depth (see figure A-7)
X
X
X
Bottom radius width and sidewall angle 4/
--
--
X
Sidewall angle 4/
--
--
X
See footnotes at end of table.
A-18
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