| 摘要 |
<p>The present invention relates to a process for the manufacture of parts having a tooth profile and boss by means of a press machine. The process of the present invention comprises a blank (3) with a boss, which is produced in a prior operation by machining, cold forging, warm forging or other method, being positioned on a female die (2) having a tooth profile formed thereon on a mirrored surface, said female die having a 20-150 DEG taper at its inlet, and having a shape conforming to the bottom configuration of said blank, and wherein an ironing process is performed by means of a punch (1) having a shape conforming to the top configuration of said blank.</p> |
