塑性と加工
Online ISSN : 1882-0166
Print ISSN : 0038-1586
ISSN-L : 0038-1586
論文
導電性セラミックス工具を用いた無潤滑円筒絞り加工
玉置 賢次片岡 征二皆本 鋼輝
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ジャーナル フリー

2007 年 48 巻 561 号 p. 930-934

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A large quantity of lubricant waste has become a very serious environmental issue. For the zero emission of lubricants, dry deep drawing is efficient; however, it is generally very difficult to apply it to metal sheets. As one of the most promising methods, the use of ceramic tools is proposed because of their high tribological properties. However, the workability of the ceramic tools is poor. Therefore, the forming of a complex shape is difficult and even the forming of a simple shape is expensive. Thus, the use of electroconductive ceramic tools in this research is proposed. The electroconductive ceramic tools can be formed by electrical discharge machining methods (e.g., wire and die milling electric discharge machining methods). Therefore, the shape of a metal mold can easily be molded. Using an electroconductive ceramic as a plastic forming tool, a high drawability was confirmed and dry deep drawing of 10,000 times was achieved. The surface roughness of a dry deep drawing cup was as large as that of a non-dry (oil) deep drawing cup.

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© 2007 一般社団法人 日本塑性加工学会
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