著者

森 茂樹 石橋 佑貴也 永野 善己 小川 秀夫

出版者

一般社団法人 日本塑性加工学会

雑誌

塑性と加工 (ISSN:00381586)

巻号頁・発行日

vol.49, no.564, pp.71-75, 2008 (Released:2008-01-30)

参考文献数

8

被引用文献数

1

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In the surface finishing of high-hardness materials such as die materials, it is common for a polishing process to be used. If burnishing is feasible for the surface finishing of a die using a CAD/CAM system and a machining center, it will become a useful working method for the following reasons: (1) reduction of the time required to make work arrangements, (2) improvement of the precision of shape and dimensions, and (3) improvement of the mechanical properties of the surfaces. In this paper, the relationships between working conditions and surface roughness are examined when the finish burnishing of a die material is carried out. The burnishing experiments were performed on prehardened steel with a SiC ceramic ball having a 9.525 mm diameter. Under the conditions of a burnishing force of 400 N and a pitch of 0.195 mm, finish burnishing was performed on a milled surface having a roughness of Ra1.4 μm, and a mirror surface having a roughness of Ra0.1 μm was obtained. In addition, in the case of the product having a free curved surface, a good mirror surface was obtained.