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http://dx.doi.org/10.14775/ksmpe.2013.12.6.030

Characteristics of Tool Wear and Surface Roughness using for Hybrid Lubrication in Micro-Milling Process of Flexible Fine Die  

Kim, Min-Wook (FINETECH Co., LTD.)
Ryu, Ki-Teak (FINETECH Co., LTD.)
Kang, Myung-Chang (Pusan National Univ., Graduate School of Convergence Science)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.12, no.6, 2013 , pp. 30-36 More about this Journal
Abstract
An FFD(flexible fine die) is an embossed mold that consists of a thin plate ranging from 0.6 to 3 mm in thickness. FFDs are primarily used for cutting LCD films and F-PCB sheets. In the high-speed micro-milling process of flexible fine dies, the lubrication and cooling of the cutting edges is very important from the aspect of eco machining and cutting performance. In this paper, a comparative study of tool wear and surface roughness between cutting fluid and hybrid lubrication for eco-machining of FFD was conducted for processes of high-speed machining of highly hardened material (STC5, HRC52). Especially, the incorporated fluid method for eco machining, in which the cutting performances can be simultaneously measured, was introduced. The machining results show that hybrid lubrication, instead of conventional cutting fluid, leads to excellent tool wear and surface roughness and represents the proper conditions for eco micro-machining of flexible fine dies.
Keywords
Flexible Fine Die; Hybrid Lubrication; Tool Wear; Surface Roughness; High Hardened Steel;
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