The invention discloses an automobile axle housing, an automobile axle housing die and a forming method, and the method comprises the following steps: selecting a seamless steel tube with an outer diameter D1 and an inner diameter d1, and cutting the seamless steel tube to a length L1; pressure is applied to trim the steel pipe, a first deformation piece with the outer diameter D2, the inner diameter d1, the thick middle and the two thin ends is formed, and the first deformation piece is thinned compared with an original seamless steel pipe wall; the first deformation part is subjected to rotary swaging treatment, the two ends of the first deformation part are lengthened to form a second deformation part with the outer diameter D3 and the inner diameter D2, the diameter shrinkage process is adopted, the wall thickness of the first deformation part is increased, compared with an original seamless steel pipe, the wall thickness of the seamless steel pipe is not increased, the weight is not increased, and therefore the problem of pipe damage caused by diameter shrinkage after large-proportion equal-wall treatment is solved; and the second deformation part is placed in a mold of middle-high pressure forming equipment, and the automobile axle housing matched with the mold in shape is formed.
本发明公开了一种汽车桥壳、汽车桥壳模具、及成形方法,该方法包括以下步骤:选取外径D1,内径d1的无缝钢管,切割其长度为L1;施压修整钢管,形成外径D2、内径d1,且中间粗两端细的第一变形件,为管材减壁工序,第一变形件比原本的无缝钢管的管材壁厚减薄了;对第一变形件进行旋锻处理,将第一变形件两端延长,形成外径D3、内径D2的第二变形件,为缩径工序,将第一变形件的壁厚增加,与原无缝钢管相比,并无增加无缝钢管的壁厚,也没有增加重量,从而解决了大比例等壁后缩径带来的管材损伤的问题;将第二变形件放入中高压成型设备的模具内,形成与模具形状匹配的汽车桥壳。
Automobile axle housing, automobile axle housing die and forming method
一种汽车桥壳、汽车桥壳模具、及成形方法
2022-07-26
Patent
Elektronische Ressource
Chinesisch
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