| 秦佳宇， 徐新成， 刘鹏， 张亚龙， 沈守国.高速铣削淬硬H13钢表面粗糙度及残余应力实验研究[J].轻工机械,2019,37(4):46-51 |
| 高速铣削淬硬H13钢表面粗糙度及残余应力实验研究 |
| Experimental Study on Surface Roughness and Residual Stress in High Speed Milling of Hardened H13 Tool Steel |
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| DOI：10.3969/j.issn.1005 2895.2019.04.009 |
| 中文关键词: 模具钢 高速铣削 单因素实验设计法 表面粗糙度 表面残余应力 |
| 英文关键词:die steel high speed milling single factor experimental design method surface roughness surface residual stress |
| 基金项目:国家自然基金项目（51501109）；上海市科委地方院校能力建设项目（17030501400）。 |
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| 中文摘要: |
| 为了获得淬硬H13模具钢在高速铣削后的高质量表面，基于单因素实验设计法，采用TiAlN涂层硬质合金立铣刀对其进行高速铣削实验。通过使用NPFLEX白光干涉仪和PROTO X射线衍射仪对加工后工件表面粗糙度、表面形貌以及表面残余应力进行测试，同时分析了切削速度、每齿进给量和轴向切深对测试结果的影响规律。研究结果表明：当切削速度为150 m/min时，表面粗糙度Ra值最小；当每齿进给量为0.06 mm/z时，Ra值最佳；而当轴向切深为0.06 mm时，Ra值最大。随着切削速度的增大，表面残余压应力呈现先减小后增大再减小的变化趋势，随着每齿进给量的增加，表面残余压应力变化并不显著，而随着轴向切深的增加，表面残余压应力增大；最大表面残余压应力和最小表面粗糙度的组合并不在相同的切削参数下获得。 |
| 英文摘要: |
| In order to obtain high quality surface of hardened H13 die steel after high speed milling, a high speed milling experiment was carried out based on single factor experimental design method using TiAlN coated hard alloy steel end mill. The surface roughness, surface topography and surface residual stress of the machined workpiece were tested by using NPFLEX white light interferometer and PROTO X ray diffractometer. At the same time, the influence of cutting speed, feed per tooth and axial depth on the test results was analyzed. The results showed when the cutting speed was 150 m/min, the Ra value of surface roughness was the smallest. When the feed per tooth was 0.06 mm/z, the Ra value of surface was the best, when the axial cutting depth was 0.06 mm, the Ra value of surface was the largest. With the increase of cutting speed, the residual compressive stress of surface decreased first, then increased and finally decreased. With the increase of feed per tooth, the surface residual compressive stress changes were not significant. With the increase of axial depth, the residual compressive stress increased; the combination of maximum surface residual compressive stress and minimum surface roughness was not obtained under the same cutting parameters. |
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