Practical application of peeling tool: establishment of simple-fabrication technique of a tool for micro-EDM less than 10-micrometer core

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420043
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Production engineering/Processing studies
• Research Institution: Nagaoka University of Technology
• Principal Investigator: Tanabe Rie 長岡技術科学大学, 工学研究科, 助教 (70432101)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 微細工具電極 / めっき / 被覆 / 放電 / 瞬時除去

Outline of Final Research Achievements

Peeling tool, which consists of a thin wire (core) coated with a low melting point metal (clad), has been proposed as a microelectrode in micro-EDM. In this study, we tried simultaneous machining of micro-hole drilling and clad removal of "peeling tool" with 10-micrometer core. The surface roughness of the peeling tool was less than 2 μm and eccentricity of the core was around 2 μm. Micro-hole drilling and removal of the clad were carried out simultaneously with copper plate of 50-micrometer thick. After the drilling, shape of the hole drilled consisted from two parts; circular dent slightly larger than clad diameter and a small through hole at the center of the dent. The core of few tens of micrometers, which was a tool for drilling the hole, appeared after the first drilling. Then through hole without a dent was obtained for consecutive 3 trials using this revealed core. On-the-machine tool forming and consecutive micro-hole drilling were demonstrated.

Free Research Field

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