粉末微注射成形技术现状

Status of micro powder injection molding

概括介绍了粉末微注射成形技术(micro powder injection molding,简称μPIM)的工艺及特点;综述了粉末微注射成形技术的国内外研究现状并介绍了一些研究机构的成果及研究进展;介绍了粉末微注射成形零件性能表征的测试设备及测试方法;举例介绍了粉末微注射成形技术的应用情况及其所面临的问题,并对粉末微注射成形技术的前景进行了展望。

The rapid development of Microsystems Technology（MST） creates a growing demand for intricate,three-dimensional micro components or microstructured components.Micro powder injection molding（μPIM）,a miniaturized variant of powder injection molding,has advantages of shape complexity,applicability to many materials and good mechanical properties.Metals,alloys,ceramics and composites have been used for μPIM.Co-injection molding has been realized between metals and ceramics on micro components,which become the first breakthrough within the PIM field.Combined with the prominent characteristics of high features/ cost ratio,micro powder injection molding becomes a potential technique for large scale production of micro components.