Author:
Gong Qingrui, ,Qiu Pei,Xu Shaolin
Abstract
NiP coating with an amorphous structure is a commonly used mold material for manufacturing resin optical components. However, due to the inhomogeneous deformation characteristics of amorphous alloys, chippings and burrs are easily produced at the edge of microstructures. Laser-assisted microcutting has proven to effectively inhibit the generation of these defects but the evolution of chip-deformation mechanisms with different laser power remains to be explored. In this study, a simulation of the temperature field under nanosecond laser irradiation was conducted and the laser-assisted cutting of NiP was considered, using the same irradiation parameters. Through the analysis of chip morphology under different conditions, it is found that the temperature in the deformation zone mainly affects the morphology of the secondary shear bands but has no effect on the number of nucleation in the primary and secondary shear bands. The proper temperature in the shear deformation zone can improve the deformation ability of the secondary shear band, thus making the shearing process more stable. This research will prove helpful to understand the material deformation mechanisms to guide the selection of laser parameters in the laser assisted cutting of amorphous alloy.
Publisher
Fuji Technology Press Ltd.
Subject
Industrial and Manufacturing Engineering,Mechanical Engineering
Reference35 articles.
1. C. Yeh, C. Shih, and H. Wang, “Microlenticular lens replication by the combination of gas-assisted imprint technology and LIGA-like process,” J. of Micromechanics and Microengineering, Vol.22, No.9, 095021, 2012.
2. M. Levoy, R. Ng, A. Adams et al., “Light field microscopy,” ACM Trans. on Graphics, Vol.25, No.3, pp. 924-934, 2006.
3. T. Zhou, J. Yan, Z. Liang et al., “Development of polycrystalline Ni-P mold by heat treatment for glass microgroove forming,” Precision Engineering, Vol.39, pp. 25-30, 2015.
4. S. Xu, S. Osawa, R. Kobayashi et al., “Minimizing burrs and defects on microstructures with laser assisted micromachining technology,” Int. J. Automation Technol., Vol.10, No.6, pp. 891-898, 2016.
5. J. C. Aurich, D. Dornfeld, P. J. Arrazola et al., “Burrs-Analysis, control and removal,” CIRP Annals, Vol.58, No.2, pp. 519-542, 2009.
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