| 摘要 |
The connecting rod (1) is made from a blank cut from a rail of the required cross-section, having a head, body and foot. The blank is compressed between matrices to distribute the material and produce a rough connecting rod with no burrs, and bores (3, 7) are made in the head and foot by heating the blank to a temperature of between 0 and 1250 deg C and applying a stamping press or punch. |
