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CHEN Ji-min, CHOU Yi. Optimizing Parameters of Laser Polishing Mould Steel[J]. Journal of Beijing University of Technology, 2015, 41(12): 1841-1845. DOI: 10.11936/bjutxb2015050022
Citation: CHEN Ji-min, CHOU Yi. Optimizing Parameters of Laser Polishing Mould Steel[J]. Journal of Beijing University of Technology, 2015, 41(12): 1841-1845. DOI: 10.11936/bjutxb2015050022

Optimizing Parameters of Laser Polishing Mould Steel

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  • Received Date: July 26, 2015
  • Available Online: January 10, 2023
  • The finish machining of moulds remains a problem. Primarily, mould surface finish machining is achieved by handcraft with a very low speed ( normally is 10~30 min/cm2 ), which occupies 30% of the whole procedure time. In order to increase polish efficiency laser polishing is applied. Laser polishing is a new polishing technology which a thin surface layer is molten and the surface tension leads to a material flow from the peaks to the valleys. In recent decades, laser-polishing has received much attention owing to many advantages that it possesses. Fiber laser has a lot of characteristics that suits for industrial-use, and so the laser-polishing techniques that was performed by fiber laser on continuous mode, were explored. With the method of orthogonal experimental design, several parameters including power, scanning velocity, scanning interval and focal-offset distance were optimized. Under the best parameters, the sample' s roughness made from 2316 tool steel is reduced from about Ra=1. 0μm to 0. 2μm.
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