High-efficiency finishing process for metal mold by large-area electron beam irradiation

被引：92

作者：

Uno, Y ^{[1
]}

Okada, A

Uemura, K

Raharjo, P

Furukawa, T

Karato, K

机构：

[1] Okayama Univ, Dept Mech Engn, Okayama 7008530, Japan

[2] Nagata Seiki Co Ltd, Niigata 9590121, Japan

[3] Sodick Co Ltd, Yokohama, Kanagawa 2248522, Japan

来源：

PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY | 2005年 / 29卷 / 04期

关键词：

electron beam; surface finishing; EDM; metal mold; corrosion resistance;

D O I：

10.1016/j.precisioneng.2004.12.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new finishing process for metal molds by large-area electron beam (EB) irradiation is proposed in this study. In the large-area EB irradiation equipment used here, an EB with high-energy density is irradiated without focusing the beam, and so the EB with a maximum diameter of 60mm can be used for melting or evaporating metal surface instantly. Experimental results show that the surface roughness decreases from 6 mu mRz to less than 1 mu mRz in just a few minutes under proper machining conditions. The corrosion resistance of metal mold surface also could be greatly improved by large-area EB irradiation. Furthermore, the surface roughness of tilting surface close to 90 degrees could be well improved. Therefore, large-area EB irradiation method has a possibility to become a high-efficiency finishing process for metal molds. (c) 2005 Elsevier Inc. All rights reserved.

引用

页码：449 / 455

页数：7

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