| 摘要 |
A method of cracking a connecting rod having a small end and a big end, into a rod part and a cap part, using a machine comprising an electro press comprising an electric motor (400) for actuating an expandable element by means of displacing an actuator to expand the expandable element. The method comprising the steps of:
operating the electric motor (400) to first accelerate said actuator until it reaches a predetermined velocity, before expansion of said expandable element, and
thereafter maintaining said actuator moving substantially at said predetermined velocity during expansion of said expanding element until the connecting rod has been cracked into said rod part and said cap part. |
