不同冷却润滑条件下TB6钛合金高速切削表面完整性研究

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英文篇名：Research on TB6 High Speed Machining Surface Integrity under Different Cooling Lubricating Conditions 作者：易湘斌 ; 芮执元 ; 李宝栋 ; 徐创文 ; 王亮 ; 李怀元 英文作者：YI Xiangbin;RUI Zhiyuan;LI Baodong;XU Chuangwen;WANG Liang;LI Huaiyuan;Key Laboratory of Digital Manufacturing Technology and Application,The Ministry of Education,Lanzhou University of Technology;Key Laboratory of Green Cutting Technology and Application in Gansu Province,Lanzhou Institute of Technology; 关键词：TB6钛合金 ; 绿色切削 ; 表面完整性 ; 极差分析 英文关键词：TB6 titanium alloy;;green cutting;;surface integrity;;range analysis 中文刊名：RHMF 英文刊名：Lubrication Engineering 机构：兰州理工大学数字制造技术与应用省部共建教育部重点实验室;兰州工业学院绿色切削加工技术及应用甘肃省高校重点实验室; 出版日期：2018-11-15 出版单位：润滑与密封 年：2018 期：v.43;No.327 基金：国家自然科学基金项目(51465029);; 甘肃省高等学校科研项目(2014A-122);; 兰州工业学院青年科技基金项目(15K-001) 语种：中文; 页：RHMF201811012 页数：6 CN：11 ISSN：44-1260/TH 分类号：45-50

摘要

通过TB6钛合金高速铣削试验,测量观察加工表面粗糙度、表面三维形貌和表层微观组织等表面完整性特征,利用极差法分析切削参数对表面粗糙度影响的显著性,探讨冷却润滑条件对加工表面形貌和表面变质层的影响。研究表明:工艺参数对表面粗糙度影响程度依次为径向切深、切削速度、进给量和轴向切深;相比低温冷风加,微油雾润滑加工时钛合金表面粗糙度低,且表面无明显晶粒变形,表明加工表面塑性变形是影响粗糙度的主要因素。
        Through the test of high-speed cutting TB6 titanium alloy,the surface integrity of titanium alloy,such as surface roughness,3 D surface topography and surface microstructure were observed. The significance of effect on the surface roughness by cutting parameters was analyzed by using the range analysis,and the effect of lubrication cooling conditions on the surface topography and metamorphic layer was discussed. The results shown that the cutting parameters influencing the surface roughness can be sequenced in the order of radial cutting depth,cutting speed,feed rate,axial cutting depth.Compared with cold blast machining method,the machining method of minimal quantity lubrication can obtain lower surface roughness,and the machined surface structure of titanium alloy has no obvious grain deformation,indicating that the surface plastic deformation is the key factor affecting the machining surface roughness.

引文

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