钣金加工是针对金属板板材的一种综合冷加工工艺,包括剪、冲/切/复合、折、焊接、铆接、拼接、成型(如汽车车身)等,其显著特点就是同一零件厚度一致。具体工艺如下:- 下料:通常指将原材料(主要是金属板材)裁切成所需尺寸。- 冲压:通过冲床和模具对板材进行冲压,以获得所需形状和尺寸的零件。- 切割:通过切割设备(如等离子切割机、火焰切割机等)将板材切割成所需形状和尺寸的零件。- 弯曲:通过弯曲设备(如折弯机等)将板材弯曲成所需形状。- 焊接:通过焊接设备(如气体保护焊机、手工电弧焊机等)将板材或零件焊接在一起。- 打磨:对焊接后的零件进行打磨,以去除表面的焊渣和毛刺。- 喷涂:对打磨后的零件进行喷涂,以获得所需的外观和防护性能。- 装配:将喷涂后的零件装配在一起,以获得最终产品。不同的钣金件可能需要不同的工艺流程,具体的工艺流程需要根据零件的形状、尺寸、材料和技术要求等因素来确定。
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