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公开(公告)号:US20050005667A1
公开(公告)日:2005-01-13
申请号:US10616825
申请日:2003-07-10
IPC分类号: B21C37/16 , B21D19/08 , B21J5/08 , B60D1/06 , B60D1/14 , B60D1/52 , B62D21/09 , B62D25/20 , B21D41/04
摘要: A method for reinforcing an end of a metal tube, and a resultant receiver tube for a motor vehicle trailer hitch assembly, wherein the method and resultant tube does not require creating a fold in the metal tube to create a reinforcing lip. The integral lip is formed by the plastic deforming a length of the first end of the tube extending beyond the die wherein the deformable length is less than or equal to two times the wall thickness of the tube.
摘要翻译: 一种用于加强金属管的端部的方法,以及用于机动车辆拖车牵引组件的所得的接收管,其中所述方法和合成管不需要在金属管中产生折痕以产生加强唇缘。 整体式唇缘由塑料变形,使管的第一端的长度延伸超过模头,其中可变形长度小于或等于管的壁厚的两倍。