采用试验设计法优化铝合金超精密车削加工参数

Optimization of Processing Parameters of Ultra-precision Turning of Aluminum Alloy by DOE

采用试验设计法对5083铝合金超精密车削的加工参数进行研究和优化,通过部分析因设计和响应曲面方法确认显著影响铝合金超精密车削的加工参数,应用JMP数据统计分析软件对试验结果进行回归分析。试验结果表明,在使用天然金刚石刀具的条件下,影响5083铝合金超精密车削的主要加工参数是进给量和切削速度。当进给量为0.06mm/r、切削速度为1010m/min时,超精密车削加工得到的铝合金表面粗糙度Ra仅为0.03μm,刀具的有效加工距离为34km,使用寿命明显提升。

The DOE method was used to study and optimize the processing parameters of ultra=precision turning of 5083 aluminum alloy. The processing parameters that significantly affected the ultra=precision turning of aluminum alloys were confirmed through factorial design and the response surface method. The regression analysis was performed on the test results by the application of JMP statistical analysis software. The test results show that under the condition of using natural diamond tools, the main processing parameters affecting ultra-precision turning of 5083 aluminum alloy are feed rate and cutting speed. When the feed rate is 0.06 mm/r and the cutting speed is 1 010 m/min, the surface roughness Ra of the aluminum alloy obtained by ultra-precision turning is only 0.03 μm. The effective machining distance of the tool is 34 km and the service life is significantly improved.