APPENDIX E - WELD REPAIR FOR M747 Trailer Frame And M747 Trailer Ramps

TB 9-2510-242-40

APPENDIX E - WELD REPAIR

FOR

M747 Trailer Frame And M747 Trailer Ramps

Section I - Purpose of this Appendix...........................................................................................

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1.1 Introduction ........................................................................................................

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2.1 Scope...................................................................................................................

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Section II - M747 Trailer Frames ...............................................................................................

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3.1 Welding Procedures..............................................................................................

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3.1.1 T-1 Steel ...........................................................................................................

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3.1.2 Pre-Welding Preparations.....................................................................

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3.1.3 Preparation of Cracked Areas ...............................................................

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3.1.4 Electrode Selection...............................................................................

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3.1.5 Preheat and Welding Heat Input ...........................................................

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3.1.6 Welding Techniques .............................................................................

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3.1.7 Reinforcement Plates ...........................................................................

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3.1.8 Weld Inspection ....................................................................................

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3.1.9 Treat/Paint Repaired Joint ....................................................................

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Section III - M747 Trailer Ramp

4.1 Welding Procedures...........................................................................................

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4.1.1 Introduction to 6061 T6 aluminum.........................................................

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4.1.2 Pre-Welding Preparations.....................................................................

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4.1.3 Preparation of Cracked Areas ...............................................................

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4.1.4 Electrodes/Filler Metal Selection...........................................................

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4.1.5 Welding Process Selection ...................................................................

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4.1.6 Shielding Gas Selection........................................................................

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4.1.7 Preheat and Welding Heat Input ...........................................................

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4.1.8 Weld Profiles and Joint Requirements ..................................................

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4.1.9 Welding Techniques - Gas Tungsten Arc Welding (GTAW)

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4.1.10 Welding Techniques - Gas Metal Arc Welding (GMAW)

With Single Electrode ...........................................................................

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4.1.11 Weld Inspection ....................................................................................

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4.1.12 Treat/Paint Repaired Joint ....................................................................

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Section IV - References .............................................................................................................

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