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金属薄壁零件在机械加工中极易产生切削应力变形,铝质薄壁零件的加工切削应力变形更大,即使多次时效消除机加应力以及改善刀具几何角度,最后零件变形仍不易控制,往往达不到设计的几何形状及尺寸精度。引起这类零件变形的原因,除机械切削应力引起变形外,装夹压力也是一个重要原因。因此薄壁零件的加工,一直成为生产中一项重大工艺关键。
Metal thin-walled parts in machining can easily produce cutting stress deformation, processing of aluminum thin-walled parts of the larger cutting stress deformation, even if the number of aging to eliminate mechanical stress and improve the tool geometry, the final part of the deformation is still not easy to control, often Unable to design the geometry and size accuracy. The cause of deformation of such parts, in addition to mechanical cutting stress caused by deformation, the clamping pressure is also an important reason. Therefore, the processing of thin-walled parts, has become a key production process.