首页 > 论文 > 中国激光 > 44卷 > 4期(pp:402002--1)

接触热导率对CFRTP/不锈钢激光直接连接温度场的影响

Effect of Thermal Contact Conductanceon Temperature Field of CFRTP/Stainless Steel Laser Direct Joining

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

为了提高碳纤热塑复合材料(CFRTP)/不锈钢激光直接连接(LDJ)数值模拟的准确性, 在实验的基础上拟合得到接触热导率计算公式, 建立了考虑界面接触热阻的三维有限元传热模型。理论仿真结果与实验结果的对比分析表明, 与传统模型相比, 热接触模型更符合实际情况, 可用于表征夹具压力对激光连接效果的影响。在激光功率为339 W、夹具压力为0.1 MPa时, 传统模型计算的相对误差为12.3%, 考虑接触热导率的热接触模型则将相对误差降至2.8%。该模型对提高激光直接连接数值模拟的准确性和工艺参数的优化选择具有重要价值。

Abstract

To improve the numerical simulation accuracy of carbon fiber reinforced thermal plastic (CFRTP)/stainless steel laser direct joining (LDJ), a fitting formula of thermal contact conductance is established based on the experiments. Taking the thermal contact resistance into account, we establish a three-dimensional finite element thermal contact model of LDJ. The theoretical simulation and experimental results are compared and analyzed. The results show that the thermal contact model is more consistent with the reality compared with the traditional model. Therefore, the thermal contact model can be used to characterize the influence of clamping pressure on the laser joining quality. When the laser power is 339 W and the clamping pressure is 0.1 MPa, the relative error is 12.3% for the traditional model and it is reduced to 2.8% for the thermal contact model. The numerical model can help to improve the accuracy of numerical simulation in the process of LDJ and choose optimal technological parameters.

投稿润色
补充资料

中图分类号:TG456.7

DOI:10.3788/cjl201744.0402002

所属栏目:激光制造

基金项目:浙江省公益技术应用研究项目(2017C31082)、中国科学院青年创新促进会资助(2017343)、深圳市基础研究项目(JCYJ20150625155931806)、中国科学院装备研制项目(YZ201535)、宁波市自然科学基金(2015A610093)

收稿日期:2016-11-23

修改稿日期:2016-12-07

网络出版日期:--

作者单位    点击查看

王强:中国科学院宁波材料技术与工程研究所, 浙江 宁波 315201
焦俊科:中国科学院宁波材料技术与工程研究所, 浙江 宁波 315201
昝少平:中国科学院宁波材料技术与工程研究所, 浙江 宁波 315201
张文武:中国科学院宁波材料技术与工程研究所, 浙江 宁波 315201

联系人作者:王强(wangq@nimte.ac.cn)

备注:王强(1990-), 男, 硕士研究生, 主要从事激光加工技术方面的研究。

【1】Acherjee B, Kuar A S, Mitra S, et al. Modeling of laser transmission contour welding process using FEA and DoE[J]. Optics & Laser Technology, 2012, 44(5): 1281-1289.

【2】Mayboudi L S, Birk A M, Zak G, et al. A three-dimensional thermal finite element model of laser transmission welding for lap-joint[J]. International Journal of Modelling and Simulation, 2009, 29(2): 149-155.

【3】Liu H, Liu W,Meng D, et al. Simulation and experimental study of laser transmission welding considering the influence of interfacial contact status[J]. Materials & Design, 2016, 92: 246-260.

【4】Zhang Liqiang, Li Luoxing, Tan Wenfang, et al. Inverse heat conduction model for determining interfacial heat transfer coefficient during casting solidification[J]. The Chinese Journal of Nonferrous Metals, 2014, 24(1): 82-90.
张立强, 李落星, 谭文芳, 等. 铸造凝固界面换热系数求解的反热传导模型[J]. 中国有色金属学报, 2014, 24(1): 82-90.

【5】Guo Zhipeng, Xiong Shoumei, Cao Shangxuan, et al. Effects of alloy materials and process parameters on the heat transfer coefficient at metal/die interface in high pressure die casting[J]. Acta Metallurgica Sinica, 2008, 44(4): 433-439.
郭志鹏, 熊守美, 曹尚铉, 等. 合金材料以及工艺参数对压铸过程中铸件/铸型界面换热系数的影响[J]. 金属学报, 2008, 44(4): 433-439.

【6】Dhorajiya A. Mechanical and heat transfer finite element modeling of transmission laser micro joining[D]. Michigan: Wayne State University, 2008.

【7】Taha Z A, Roy G G, Hajim K I, et al. Mathematical modeling of laser-assisted transmission lap welding of polymers[J]. Scripta Materialia, 2009, 60(8): 663-666.

【8】Jiao J, Wang Q, Wang F,et al. Numerical and experimental investigation on joining CFRTP and stainless steel using fiber lasers[J]. Journal of Materials Processing Technology, 2017, 240: 362-369.

【9】Chu Qingchen, He Xiuli, Yu Gang, et al. Numerical simulation and analysis on temperature field for laser welded stainless steel lap joint[J]. Chinese J Lasers, 2010, 37(12): 3180-3186.
褚庆臣, 何秀丽, 虞 钢, 等. 不锈钢激光搭接焊接头温度场数值模拟及分析[J]. 中国激光, 2010, 37(12): 3180-3186.

【10】Hu Linxi, Zhou Dianwu, Jia Xiao, et al. Numerical simulation and laser butt welding of Zr-Sn-Nb-Fe zirconium alloy sheets[J]. Chinese J Lasers, 2016, 43(7): 0702002.
胡林西, 周惦武, 贾 骁, 等. Zr-Sn-Nb-Fe锆合金薄板激光对接焊及数值模拟[J]. 中国激光, 2016, 43(7): 0702002.

【11】Grewell D A,Benatar A, Park J B. Plastics and composites welding handbook[M]. Cincinnati: Hanser Publications, 2003.

【12】Wan Z, Wang H P, Wang M,et al. Numerical simulation of resistance spot welding of Al to zinc-coated steel with improved representation of contact interactions[J]. International Journal of Heat and Mass Transfer, 2016, 101: 749-763.

【13】Rodriguez-Vidal E,Lambarri J, Soriano C, et al. A combined experimental and numerical approach to the laser joining of hybrid polymer-metal parts[J]. Physics Procedia, 2014, 56: 835-844.

【14】Zheng J, Li Y, Wang L, et al. An improved thermal contact resistance model for pressed contacts and its application analysis of bonded joints[J]. Cryogenics, 2014, 61: 133-142.

引用该论文

Wang Qiang,Jiao Junke,Zan Shaoping,Zhang Wenwu. Effect of Thermal Contact Conductanceon Temperature Field of CFRTP/Stainless Steel Laser Direct Joining[J]. Chinese Journal of Lasers, 2017, 44(4): 0402002

王强,焦俊科,昝少平,张文武. 接触热导率对CFRTP/不锈钢激光直接连接温度场的影响[J]. 中国激光, 2017, 44(4): 0402002

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF