商用车轻量化横梁电弧增材工艺及应用可行性研究

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中图分类号：TG444 文献标志码：B DOI：10.19710/J.cnki.1003-8817.20250126

Feasibility Study on Technology and Application ofWire Arc Additive Manufacturing Process on Lightweight Crossbeam in Commercial Vehicles

Yao Qingtai， Wang Ziguo，Liu Bao，Han Qiusheng，Bai Ming， Guo Zhipeng （FAWJiefang Automobile Co.，Ltd.，Changchun 130011）

Abstract：Inorder tomeetthelow-costand high-efciencyrequirementsof lightweight，smallbatch，and largesized structural component manufacturing in the commercialvehicleindustry，andovercome the mold limitationsof traditionalmanufacturing processes，this paper innovatively explores thefeasibilityof Wire Arc Additive Manufacturing （WAAM）inthecommercial vehicle industry.From4aspects：numerical modelingprocessing，additive shape controling，static performance and economiccomparisonof samples，WAAM process technology research is performed based ona lightweight aluminum aloy crossbeam of acommercial vehicle，andthe first aluminum alloy wire arc additivecrossbeamsampleinthecommercialvehicleindustryissuccessfullyprinted.Byoptimizingnumerical modeling，partitionprinting，weldingparameters，and interlayertemperaturecontrol，theresearch ensures thatthesize accuracy of the beam sample reaches ±2.5mm and there are no quality defects.Compared with traditional casting processes，WAAM's single piece trial production cost can be reduced by 59.5% ，and the efficiency of the parts can be improved by 51.7% ：

Keywords：Lightweight， Commercial vehicles，Crossbeam，Wire arc additive manufacturing

1前言

全球范围内气候变化、环境污染和能源危机的日益加剧对汽车行业的节能减排提出了更高的要求[。（剩余4570字）