The invention provides a lining pipe and a forming process method thereof. The forming process method of the lining pipe comprises the following steps that S<1>, a steel plate is blanked; S<2>, the steel plate is stamped to form a bowl-shaped structure; S<3>, axial tension is carried out on the bowl-shaped structure, the top of the bowl-shaped structure is reamed outwards, and a formed part is formed; S<4>, cutting and removing are carried out on the bottom face of the part; S<5>, flanging is carried out on the reamed side of the part; S<6>, reaming is carried out on the non-flanging side of the part, shaping is carried out on the flanging side, and the flanging thickness is increased; and S<7>, flanging and shaping are carried out on the reamed side. According to the lining pipe and the forming process method thereof, the problem that one side is prone to fatigue cracking and the like due to the fact that the front and rear flanges of the lining pipe on a control arm type structural part are inconsistent in stress can be well solved by adopting the stamping structure lining pipe with the flanges on the two sides unequal in thickness, and therefore the service life of parts is prolonged, and the fatigue performance of the parts is improved.
本发明提供了一种衬套管及其成型工艺方法,所述衬套管成型工艺方法包括以下步骤:S1、钢板落料;S2、将所述钢板冲压形成碗型结构;S3、对所述碗型结构进行轴向拉伸,并将所述碗型结构的顶部向外扩孔,形成成型的零件;S4、对所述零件底面进行切割去除;S5、针对所述零件的扩孔侧进行翻边;S6、针对所述零件的未翻边侧进行扩孔,并对翻边侧进行整形,增加所述翻边厚度;S7、针对所述扩孔侧进行翻边整形。本发明衬套管及其成型工艺方法通过采用两侧翻边不等厚的冲压结构衬套管,可以很好地解决控制臂类结构件上衬套管前后翻边受力不一致导致的一侧易疲劳开裂等问题,从而提高零件使用寿命和疲劳性能。
Lining pipe and forming process method thereof
衬套管及其成型工艺方法
2021-12-24
Patent
Elektronische Ressource
Chinesisch
IPC: | B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL , Bearbeiten oder Verarbeiten von Blechen, Metallrohren, -stangen oder -profilen ohne wesentliches Abtragen des Werkstoffs / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
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