Development of On-the-Machine Surface Modification Technology in WEDM
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- TAMURA Takeo
- Faculty of Engineering, Niigata University
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- KANEKO Kuranosuke
- TOKUSEN Co.,ltd
Bibliographic Information
- Other Title
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- ワイヤ放電加工におけるオンザマシン表面改質技術の開発
- ワイヤ ホウデン カコウ ニ オケル オンザマシン ヒョウメン カイシツ ギジュツ ノ カイハツ
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Abstract
As a method of processing cemented carbide, wire electrical discharge machining (WEDM) is generally used. However, typical surface defects, such as cracks, microcraters and recast layer, lead to a decreased surface integrity, probably resulting in a short tool life. Therefore, it is desirable to eliminate these surface defects by some methods. Thus, an on-the-machine surface modification technology in WEDM, for the complete elimination of surface defects, was developed in this study. The surface defects are eliminated using a wire electrical discharge machine by introducing surface integrity cut (SI cut) after applying a large number of WEDM finishing cuts. SI cut is carried out as follows. Wires are passed through the same contour with a wire offset of 0μm in SI cut after the final finishing cut by WEDM. It can be considered that a recast layer including cracks is selectively eliminated by the dissolution of cobalt based on the electrolytic action during SI cut. As a result, the surface defects generated by WEDM could be completely eliminated by incorporating SI cut into WEDM. Thus, this surface modification technology is effective for finishing cemented carbide machined by WEDM.
Journal
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- Journal of The Japan Society of Electrical Machining Engineers
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Journal of The Japan Society of Electrical Machining Engineers 46 (111), 14-22, 2012
Japan Society of Electrical Machining Engineers
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Details 詳細情報について
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- CRID
- 1390001206235290880
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- NII Article ID
- 10030521544
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- NII Book ID
- AN00151681
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- ISSN
- 18810888
- 0387754X
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- NDL BIB ID
- 023664818
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed