An investigation on surface finishing in ultra-precision raster milling of aluminum alloy 6061
An investigation on surface finishing in ultra-precision raster milling of aluminum alloy 6061
复制标题
6061铝合金超精密光栅铣削表面光洁度研究
DOI：
10.1177/0954405414535588
复制
发表时间：
2015-08
期刊：
影响因子：
--
通讯作者：
陈新度
中科院分区：
文献类型：
--
作者：
王素娟;杜雪;陈新;陈新度
单晶金刚石刀具超精密加工技术可以生产出尺寸精度更高、表面质量更好的先进零件。建立了超精密光栅铣削加工的三维表面形貌仿真模型，考虑了切削参数、刀具几何形状、刀具干涉以及刀具与工件的相对运动对曲面生成的影响。基于所建立的表面形貌仿真模型，建立了超精密光栅铣削加工表面粗糙度的预测模型。研究了6061铝合金超精密铣削过程中切削深度和表面形貌对切削生热的影响。通过对6061铝合金在不同进给速度和不同切削深度下的光栅铣削加工，对所建立的表面形貌仿真模型进行了实验验证。实验结果表明，该表面形貌仿真模型能较好地模拟光栅铣削加工的表面形貌，预测的表面粗糙度与实测结果吻合较好。在水平切削中产生的热量小于垂直切削中产生的热量，并且较大的切削深度在加工的工件上产生更多的热量。在超精密光栅铣削加工中，切削热会在6061铝合金表面产生沉淀物，导致加工表面质量下降。
The technology of ultra-precision machining with single crystal diamond tool produces advanced components with a higher dimensional accuracy and a better surface quality. This article develops a three-dimensional surface topography simulation model for ultra-precision raster milling process by considering the effect of cutting parameters, tool geometry and tool interference as well as the tool–workpiece relative movement on surface generation. Based on the developed surface topography simulation model, a prediction model for the surface roughness in ultra-precision raster milling is built. The effects of depth of cut and surface topography on the cutting-induced heat generation in ultra-precision milling of aluminum alloy 6061 are investigated. Experiment is conducted to verify the developed surface topography simulation model by raster milling of aluminum alloy 6061 under different feed rates and depths of cut. The experimental results show that the surface topography simulation model can properly simulate the surface profile in the raster milling process and the predicted surface roughness agrees well with the measured results of the machined workpiece. Heat generation in horizontal cutting is less than that in vertical cutting and a larger depth of cut generates more heat on the machined workpiece. The cutting-induced heat generates precipitate on the machined aluminum alloy 6061 which results in a worse surface finish in ultra-precision raster milling.
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DOI：
10.1016/j.ijmachtools.2005.11.014
发表时间：
2006-11-01
影响因子：
14
作者：
Liu, Kai;Melkote, Shreyes N.
通讯作者：
Melkote, Shreyes N.
DOI：
10.1016/s0007-8506(07)61007-5
发表时间：
1990
期刊：
CIRP Annals
影响因子：
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作者：
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通讯作者：
T. Moriwaki;Akira Horiuchi;K. Okuda
影响因子：
6.3
作者：
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通讯作者：
R. Waikar;Yuebin B. Guo
DOI：
10.1016/s0020-7403(99)00105-8
发表时间：
2001-01-01
影响因子：
7.3
作者：
Komanduri, R;Hou, ZB
通讯作者：
Hou, ZB
DOI：
10.1016/j.ijmachtools.2008.02.006
发表时间：
2008-08
影响因子：
14
作者：
M. N. Cheng;C. Cheung;W. Lee;S. To;L. Kong
通讯作者：
M. N. Cheng;C. Cheung;W. Lee;S. To;L. Kong