せん断加工技術を利用する金属・樹脂の接合に関する研究(機械要素,潤滑,工作,生産管理など)

概要

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There are various methods of joining metal and resin in manufacturing. Conventional joining methods have of course many advantageousnesses, but new methods suitable for recycling metal and resin have been expected. In this study, a method of joining the two materials using shearing technique was investigated. This method allows metal and resin to be joined without the need to use a third material, therefore enabling the metal and resin to be withdrawn independently and recycled. This method uses a pair of punch and die. It can be applied to aluminum, polypropylene, and hard polyvinyl chloride. It consists of the following steps; first punching a hole in the metal sheet by punching, then pushing the sheared holes on the metal with resin, and finally the finishing process. The joining force is measured by tensile tests. Joining was found to be influenced by type of resin used, punch travel, and clearance between the punching and pushing process from the strength evaluation. The joining force can be controlled to vary these factors. From a simple analysis, it is known that the joining strength is generated by shrinking an outer pierced hole over inner resin cylinder.
2006-02-25