铝合金支撑骨架组焊工艺研究

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Abstract：The welding process of aluminum alloy support framework was studied，combined with the support framework structure， weld form and technical requirements，from the processdesign， welding parameters，welding sequence， welding deformation control and other aspects of analysis and control. By adopting the assembly design without marking positioning， the welding groove depth optimization， the size process volume， the welding reverse deformation，therigid fixing methodand the static pressureadjustment method，thesupportskeletonsample is trialproduced，andthe technicalindex is reached，whichcan provide technical reference for the manufacturingof similar aluminum truck products.

Keywords： aluminum alloy； supporting framework； welding process；welding deformation

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铝合金因具有自身质量小、耐腐蚀、回收价值高等优点，而被作为我国高速列车、地铁列车、运煤专用货车轻量化的首选材料，已经大量应用在我国铁路运输中[1]。（剩余3734字）