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AlcoTec Aluminum Wire & Equipment Technical Guide

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AlcoTec Aluminum Wire & Equipment Technical Guide......................................................................................................... 1 Table of Contents................................................................................................................................................................. 1 Environmental Health & Safety. ............................................................................................................................................ 3 Technical Services Heat Treatable & Non-Heat Treatable Base & Fillers.............................................................................................................. 6 Filler Alloys: Chemical Composition Limits & Physical Properties . ........................................................................................ 7 Conversion Factors ............................................................................................................................................................. 7 Welded Joint Strength.......................................................................................................................................................... 8 Typical Tensile Properties - Groove Welds. ........................................................................................................................... 9 Weld Profiles...................................................................................................................................................................... 10 Weld Control Characteristics.............................................................................................................................................. 11 Parameter Changes & Current Density............................................................................................................................... 11 Backing Bars..................................................................................................................................................................... 12 Bend Testing Aluminum. .................................................................................................................................................... 13 Atmospheric Conditions Affect Weld Quality....................................................................................................................... 14 Feedability.......................................................................................................................................................................... 15 Excessive Face Reinforcement........................................................................................................................................... 16 Dilution............................................................................................................................................................................... 17 Aluminum Alloys................................................................................................................................................................. 18 Heat-Treatable and Non Heat-Treatable Alloys & the Heat Affected Zone (HAZ).................................................................. 19 Considerations When Repairing Aluminum Structures........................................................................................................ 20 Shielding Gas for Arc Welding Aluminum............................................................................................................................ 21 Easy Weld Quality Tests..................................................................................................................................................... 22 Weld Cracking. .................................................................................................................................................................. 24 Performance Improvement - Increasing Wire Diameter....................................................................................................... 26 Filler Alloy for Welding 6061-T6.......................................................................................................................................... 27 The Affect of Texture on Anodizing..................................................................................................................................... 28 Recommended Welding Parameters.................................................................................................................................. 29 Aluminum Filler Alloy Chart................................................................................................................................................. 30 Education Welder Certification & Qualification..................................................................................................................................... 34 AlcoTec School of Aluminum Welding Technology.............................................................................................................. 35 AlcoTec School of Aluminum Welding Technology Course Outline...................................................................................... 36 Classroom. ........................................................................................................................................................................ 36 Laboratory......................................................................................................................................................................... 36