The State Key Laboratory of Ultraprecision Machining Technology, Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hong Kong, China.
Shenzhen Branch of State Key Laboratory of Ultra-precision Machining Technology, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China.
PLoS One. 2018 Apr 2;13(4):e0195083. doi: 10.1371/journal.pone.0195083. eCollection 2018.
Ultra-precision face turning of Al6061 mirrors using single point diamond turning (SPDT) was undertaken to investigate the correlation between the surface roughness and reflectance. By reducing the feed rate, the optimal feed rate when the chip formation became unstable was studied. Most importantly, the impact on the roughness and reflectance was examined when the chip formation ceased to be continuous. It was determined that for a feed rate below 3 mm/min, the surface roughness always improved as the feed rate decreased, at the cost of a reduction of the normalized reflectance. The reduction of reflectance was determined to be the result of the lower material removal rates that led to a discontinuous chip formation.
使用单点金刚石车削（SPDT）对 Al6061 反射镜进行超精密车削，以研究表面粗糙度和反射率之间的相关性。通过降低进给速度，研究了切屑形成变得不稳定时的最佳进给速度。最重要的是，当切屑形成不再连续时，研究了对粗糙度和反射率的影响。结果表明，进给速度低于 3mm/min 时，随着进给速度的降低，表面粗糙度总是会提高，但归一化反射率会降低。反射率的降低是由于较低的材料去除率导致切屑形成不连续所致。
