| 摘要 |
1,168,664. Making ball bushing rod ends; jointing by forging. TORRINGTON CO. 6 July, 1967 [8 July, 1966], No. 31166/67. Headings B3A and B3H. [Also in Division E2] A ball bushing rod end is formed by working a deep drawn blank 46 in situ around a ball bushing 24. The opposite sides of the tubular blank are first flattened and after the bushing has been positioned, the blank is swaged by dies (49) (Fig. 16, not shown) around the bushing. Further working is carried out by dies 52, Fig. 19, through openings in which are passed tubular dies 53 which force the flattened walls towards each other to cause circular portions 55 of the walls to be sheared off. The sleeve portion 51 may be swaged around a connecting rod or may be provided with internal or external threads. Lubricant may be placed in a channel 41. The rod end may be of hardened steel and the bushing may be of hardened steel or sintered iron. |
