| 切削参数对Ti-6Al-4V锻件与粉末冶金工件表面粗糙度的影响对比 |
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| 引用本文： | 孙富建,屈盛官,邓朝晖,李小强.切削参数对Ti-6Al-4V锻件与粉末冶金工件表面粗糙度的影响对比[J].宇航材料工艺,2017,47(6):51-54. |
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| 作者姓名： | 孙富建 屈盛官 邓朝晖 李小强 |
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| 作者单位： | 湖南科技大学智能制造研究院, 湘潭 411201,华南理工大学机械与汽车工程学院, 广州 510641,湖南科技大学智能制造研究院, 湘潭 411201,华南理工大学机械与汽车工程学院, 广州 510641 |
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| 基金项目： | 湖南省教育厅科学研究项目（17C0639） |
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| 摘 要： | 文摘表征了已加工Ti-6Al-4V锻件和粉末冶金工件表面形貌,利用正交回归试验得到了两种材料表面粗糙度值的数学模型,经过显著性检验两个数学模型能够准确地预测表面粗糙度值变化趋势。结果表明,Ti-6Al-4V锻件表面出现了进给划痕、切屑碎片和表面撕裂缺陷,粉末冶金材料表面出现了除了进给划痕、切屑碎片和撕裂外的微孔隙缺陷;两种工件表面粗糙度值均受到进给量的影响程度最大,同时粉末冶金材料内部残余微孔隙的存在导致切削速度对其表面粗糙度值的影响程度比较大。
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| 关 键 词： | Ti-6Al-4V 锻件 粉末冶金材料 表面形貌 表面粗糙度 |
| 收稿时间： | 2017/3/2 0:00:00 |
| 修稿时间： | 2017/6/23 0:00:00 |
Comparative on Influence of Cutting Parameters on Surface Roughness of Ti-6Al-4V Forging and Powder Metallurgy Workpieces |
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| SUN Fujian,QU Shengguan,DENG Zhaohui and LI Xiaoqiang.Comparative on Influence of Cutting Parameters on Surface Roughness of Ti-6Al-4V Forging and Powder Metallurgy Workpieces[J].Aerospace Materials & Technology,2017,47(6):51-54. |
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| Authors: | SUN Fujian QU Shengguan DENG Zhaohui and LI Xiaoqiang |
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| Institution: | Intelligent Manufacturing Institute of HNUST, Hunan University of Science and Technology, Xiangtan 411201,Schoolo of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641,Intelligent Manufacturing Institute of HNUST, Hunan University of Science and Technology, Xiangtan 411201 and Schoolo of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641 |
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| Abstract: | In this paper, surface morphologies of Ti-6Al-4V forging and powder metallurgy workpieces were characterized, surface roughness mathematical models of the two machined workpieces were developed using orthogonal regression test,and the significances of the mathematical models were verified, the surface roughness mathematical models could predict the surface roughness changing trends. The experimental results showed that feed scratch, chip fragment and surface tearing defects appeared in the machined Ti-6Al-4V forging surface, while micro-void defect was formed in the machined powder metallurgy material surface apart from the feed scratch, chip fragment and surface tearing defects.The influence of feed rate on the surface roughness of both workpieces is greatest, and the existence of internal micro-void of Ti-6Al-4V powder metallurgy material led influence of cutting speed greater. |
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| Keywords: | Ti-6Al-4V Forging Powder metallurgy material Surface morphology Surface roughness |
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