MIL-STD-2219 Fusion Welding for Aerospace Applications S/S by AWS-D17.1The scope of this document is to provide minimum requirements for weld filler materials, workmanship, inspection and record requirements for fusion welding of alloys applicable to aircraft, missiles, other aerospace equipment, their parts and accessories.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - 38 - 39 - 40 - 41 - 42 - 43

MIL-STD-2219A

w/CHANGE 1

TABLE V.  Discontinuity limits - Continued

Notes:

1/        If the defects exhibit sharp radii, sharp termination. or are cracklike, they shall be removed by grinding.  If the depression is not larger than permitted. they need

not be rewelded.

2/        Where possible to determine by metal removal, the depth of cold shut shall not cause joint thickness to be less than the thinner material being welded.

5.4.5 Disposition of unacceptable welds

Welds not meeting the requirements of 5.4.3 and 5.4.3.5 shall be rejected or in-process corrected as specified below.  Imperfections that will be removed by subsequent machining shall not be cause for rejection.  Removal of unacceptable weld metal is allowed provided the weld size and minimum base metal thickness requirements are met.

5.4.5.1 Rejections

Any defective weldment which has gone through a subsequent manufacturing operation that affects the metallurgical characteristics (other than tempering or stress relieving of martensitic steels) or that cannot be rewelded without affecting final metallurgical or surface coating characteristics shall be referred to the Material Review Board.  Any weldment with cracks in the base metal shall be rejected.

5.4.5.2 In-process correction

In-process correction is any corrective action taken by the welder prior to the weldment departing the welding shop and prior to any inspection.  The in-process correction history shall be part of the paperwork accompanying the weld.  Rewelding shall be accomplished by the same process and filler material used to make the original weld. Manual GTAW process may be used at shop option for all processes.  Corrected welds shall meet the requirements of the original welds.

5.4.5.2.1 For Class A welds

Surface and subsurface imperfections within the weld metal area (not extending into the

HAZ or base metal) may be repaired one time as defined below:

28