| 摘要 |
<p>A method of forming an undercut in a metal powder injection-molded article and a metal powder injection-molded article having an undercut formed by such method. The method comprises the steps of injection-molding a mixture that contains metal powder and binding resin, forming an undercut in an injection-molded article obtained by the injection molding, and degreasing and sintering the injection-molded article formed with the undercut. It is preferable that the undercut be formed by deforming at least a part of the injection-molded article and more preferable that it be deformed by pressing using a pressing member.</p> |
