铣刀盘激光熔覆修复过程的温度场与应力场有限元仿真

摘要/Abstract

摘要： 为了判定铣刀盘激光熔覆修复过程是否会发生热致应力开裂的问题，对铣刀盘激光熔覆修复过程的三维温度场和应力场进行模拟。根据铣刀盘损伤特征建立铣刀盘的三维修复模型，利用结构化网格划分方法构建修复后的铣刀盘分析模型及边界，将单元生死技术和ANSYS APDL自编程序相结合，重现铣刀盘激光熔覆修复成形过程。研究表明，大温度梯度和几何约束限制使刀盘修复部位产生高的残余应力，最大值为384 MPa。实际应用表明，铣刀盘修复后未产生开裂缺陷，修复效果良好，验证了仿真的正确性。

关键词: 铣刀盘, 激光熔覆, 修复, 单元生死技术, ANSYS APDL自编程序

Abstract: In order to determine whether thermal stress cracking would occur during laser cladding repair processes of milling cutter disks， the three-dimensional temperature fields and stress fields of the milling cutter disks were simulated.The three-dimensional repair model of milling cutter disks was established based on the characteristics of the damage failures. The grid model and boundary conditions of the repaired milling cutter disks were established by using hexahedral structured meshing method. The laser cladding processes of milling cutter disks were reappeared by combining the live and death element technology with the ANSYS APDL self-programming technology. The researches showed that, the high temperature gradient and geometrical constraints resulted in high residual thermal streses in the repaired areas.The maximum residual thermal stress is as 384 MPa. The applications show that the milling cutter disks do not crack after repaired, and the repair effectiveness is good, which verifies the correcteness of the simulation.

Key words: milling cutter disk, laser cladding, repair, live and death element technology, ANSYS APDL self-programming technology

中图分类号:

TG404

舒林森1,2;王家胜1. 铣刀盘激光熔覆修复过程的温度场与应力场有限元仿真[J]. 中国机械工程.

SHU Linsen1,2;WANG Jiasheng1. Finite Element Simulations of Temperature Fields and Stress Fields in Laser Cladding Repair Processes of Milling Cutter Disks[J]. China Mechanical Engineering.

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http://www.cmemo.org.cn/CN/Y2019/V30/I01/79

参考文献

[1]孔源，刘伟军，王越超，等. 钛合金激光直接成形过程中热力耦合场的数值模拟[J]. 机械工程学报，2011，47(24)：74-82.
KONG Yuan，LIU Weijun，WANG Yuechao，et al. Numerical Simulation of Temperature Field and Stress Field of Direct Laser Metal Deposition Shaping Process of Titanium Alloys [J]. Chinese Journal of Mechanical Engineering，2011，47（24）：74-82.
[2]FARAHMAND P，KOVACEVIC R. An Experimental Numerical Investigation of Heat Distribution and Stress Field in Single-and Multi-track Laser Cladding by a High-power Direct Diode Laser[J]. Optics & Laser Technology，2014，63：154-168.
[3]WANG Dengzhi，HU Qianwu，Zheng Yinlan,et al. Study on Deposition Rate and Laser Energy Effici-ency of Laser-induction Hybrid Cladding[J].Optics & Laser Technology，2016，77：16-22.
[4]CALLEJA A，TABERNERO I，EALO J. Feed Rate Calculation Algorithm for the Homogeneous Material Deposition of BliskBlades by 5-axis Laser Cladding[J]. The International Journal of Advanced Manufacturing Technology，2014，74：1219-1228.
[5]张平, 马琳, 赵军军,等. 激光熔覆数值模拟过程中的热源模型[J]. 中国表面工程, 2006, 19(增刊1):161-164.
ZHANG Ping, MA Lin, ZHAO Junjun, et al. The Heat Source Model of the Numerical Simulation in the Laser Cladding[J]. China Surface Engineering, 2006, 19(S1):161-164.
[6]仇卫华, 刘长毅. 基于ANSYS的激光熔覆的数值模拟[J]. 机械制造与自动化, 2008, 37(1):13-15.
QIU Weihua, LIU Changyi. Numerical Simulation of Laser Cladding Based on ANSYS[J]. Machine Building & Automation, 2008, 37(1):13-15.
[7]郭卫, 菅含含, 柴蓉霞,等. 27SiMn钢表面激光熔覆的数值模拟与验证[J]. 热加工工艺, 2016(18):1-6.
GUO Wei, JIAN Hanhan, CHAI Rongxia, et al. Numerical Simulation and Verification of Laser Claddingon 27SiMn Steel Surface[J]. Hot Working Technology, 2016(18):1-6.
[8]任会芳，任家隆，王青仙. 柴油机曲轴裂纹激光熔覆修复材料选择的仿真研究[J]. 徐州工程学院学报（自然科学版），2013，28(3)：69-73.
REN Huifang，REN Jialong，WANG Qingxian. Simulation Analysis on the Laser Cladding Repair Material Selection of Diesel Engine Crankshaft Crack.[J].Journal of Xuzhou Institute of Technology (Natural Sciences Edition) ，2013，28(3)：69-73.
[9]贾文鹏，林鑫，谭华. TC4钛合金空心叶片激光快速成形过程温度场数值模拟[J]. 稀有金属材料与工程，2007， 36(7)：1193-1199.
JIA Wenpeng， LIN Xin，TAN Hua，et al. Numerical Simulation for Temperature Field of TC4 Titanium Alloy Hollow Blade during Laser Rapid Forming Process[J]. Metal Materials and Engineering，2007，36（7）：1193-1199.
[10]李德英,张坚,赵龙志,等.超声辅助激光熔覆SiC/316L温度场和应力场分析[J].焊接学报,2017,38（5）：35-39.
LI Deying，ZHANG Jian，ZHAO Longzhi,et al. Analysis on Temperature and Stress of SiC/316L Coating by Ultrasonic-assisted Laser Cladding[J].Transactions of the China Welding Institution,2017,38（5）：35-39.
[11]胥国祥，武传松，秦国梁. 铝合金T型接头激光+GMAW复合热源焊温度场的有限元分析[J].金属学报，2012，48(9)：1033-1041.
XU Guoxiang, WU Chuansong, QIN Guoliang. Finite Element Analysis of Temperature Field in Laser+GMAW Hybrid Welding for T-joint of Aluminum Alloy[J]. Acta Metallurgica Sinica，2007，36（7）：1193-1199.
[12]BRCKNER F，LEPSKI D，BEYER E. Modeling the Influence of Process Parameters and Additional Heat Sources on Residual Stresses in Laser Cladding[J]. Journal of Thermal Spray Technology，2007，16（3）：355-373.
[13]HUSSAM E，BRUNO C，SAMUEL B，et al. Analysis and Prediction of Single Laser Tracks Geometrical Characteristics in Coaxial Laser Cladding Process[J]. Optics and Lasers in Engineering，2012，50（3）：413-422.
[14]封慧，李剑峰，孙杰.曲轴轴颈损伤表面的激光熔覆再制造修复[J].中国激光，2014，41(8)：1-5.
FENG Hui，LI Jianfeng，SUN Jie. Study on Remanufacturing Repair of Damaged Crank Shaft Journal Surface by Laser Cladding[J].Chinese Journal of Lasers，2014，41（8）：1-5.
[15]曹华军，舒林森，许磊，等. 复杂机械零件的六面体有限元网格生成方法[J]. 机械工程学报，2014，50（15）：113-118.
CAO Huajun，SHU Linsen，XU Lei，et al. Hexahedral Mesh Generation Method for Complex Mechanical Structure[J]. Journal of Mechanical Engineering，2014，50（15）：113-118.