钛合金薄壁件激光熔覆铣削再制造后的平面度变化
Flatness Change of Titanium Alloy Thin-Walled Parts by Laser Cladding and Milling Remanufacturing
摘 要
对TC4合金薄壁件进行了激光熔覆铣削再制造，采用MATLAB软件对测试数据进行拟合，研究了熔覆轨迹（0°，45°和90°）以及后续铣削加工对薄壁件平面度的影响。结果表明：采用0°，45°和90°熔覆轨迹进行激光熔覆后，TC4合金薄壁件的平面度较熔覆前的均有所提高，且熔覆前后的平面度差值依次增大；TC4合金激光熔覆层的硬度较基体的提高了20%；铣削加工后，激光熔覆薄壁件的平面度进一步增大；90°，45°，0°熔覆轨迹薄壁件铣削加工后的平面度依次减小，0°熔覆轨迹对钛合金薄壁件的再制造效果较好。
激光熔覆
铣削
再制造
平面度
titanium alloy
laser cladding
milling
remanufacturing
flatness
Abstract
Laser cladding and milling remanufacturing of TC4 alloy thin-walled parts was carried out, and the influence of cladding trajectory (0°, 45° and 90°) and subsequent milling on the flatness of thin-walled parts was studied by using MATLAB software to fit the test data. The results show that after laser cladding with 0°, 45° and 90° cladding trajectories, the flatness of TC4 alloy thin-walled parts was improved comparing with that before cladding, and the flatness difference before and after cladding increased sequentially. The hardness of the TC4 alloy laser cladding layer was 20% higher than that of the matrix. After milling, the flatness of the thin-walled parts after laser cladding was further increased. The flatness of thin-walled parts with 90°, 45°, and 0° cladding trajectories decreased after milling, and the 0° cladding trajectory showed a better remanufacturing effect on titanium alloy thin-walled parts.
中图分类号 TG166.5 TG659 DOI 10.11973/jxgccl202011019
所属栏目 专题报道(增材制造技术)
基金项目 国家自然科学基金资助项目（U1633104）；中国民航大学波音基金资助项目（20190608）
收稿日期 2020/3/11
修改稿日期 2020/9/2
网络出版日期
作者单位点击查看
备注余芬(1963-),女,辽宁本溪人,教授,硕士
引用该论文: YU Fen,ZHANG Jin,WANG Ning,WANG Tao. Flatness Change of Titanium Alloy Thin-Walled Parts by Laser Cladding and Milling Remanufacturing[J]. Materials for mechancial engineering, 2020, 44(11): 106～110
余芬,张金,王宁,王涛. 钛合金薄壁件激光熔覆铣削再制造后的平面度变化[J]. 机械工程材料, 2020, 44(11): 106～110
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【4】范永升,黄渭清,杨晓光,等. 某型航空发动机涡轮叶片服役微观损伤研究[J].机械工程学报,2019,55(13):122-128.
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【10】张富祯,孙文磊,王恪典,等.面向薄壁件的激光熔覆修复工艺参数优化研究[J].表面技术,2019,48(1):168-174.
【11】王涛,李阳,王宁,等.激光熔覆TC4钛合金加工轨迹对表面形貌的影响[J].热加工工艺,2019,48(8):138-141.
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【13】王东霞.特殊对象的测量数据误差处理与不确定度研究[D].南京:东南大学,2015.
【14】罗奎林,郭双全,何勇,等.激光熔覆修复航空发动机风扇机匣TC4钛合金静子叶片[J].中国表面工程,2015,28(6):141-146.
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