4.5 Article

A study on the development of the laser-assisted milling process and a related constitutive equation for silicon nitride

期刊

CIRP ANNALS-MANUFACTURING TECHNOLOGY
卷 63, 期 1, 页码 109-112

出版社

ELSEVIER
DOI: 10.1016/j.cirp.2014.03.087

关键词

Laser; End milling; Ceramic

资金

  1. National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning [2013035186]
  2. National Research Foundation of Korea [2011-0017407] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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Laser-assisted machining (LAM) has recently been evaluated as an effective process for machining of difficult-to-cut materials, such as ceramics. It is more difficult to reach a sufficient preheating temperature in laser-assisted milling than in turning. A newly developed back-and-forth preheating method is proposed to obtain proper temperature at the laser spot, which is preceding a cutting tool. Experiments were successfully performed using the calculated laser power and feed, as determined by using finite element analyses. In addition, a constitutive equation of the LAM is proposed. The proposed method and constitutive equation can be applied to the laser-assisted milling of ceramics. (C) 2014 CIRP.

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