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Cu-Al异种金属超声焊接过程模拟

李欢,曹彪,杨景卫,崔晓宇

李欢,曹彪,杨景卫,崔晓宇. Cu-Al异种金属超声焊接过程模拟[J]. 焊接学报, 2017, 38(8): 5-9. doi: 10.12073/j.hjxb.20150908002
引用本文: 李欢,曹彪,杨景卫,崔晓宇. Cu-Al异种金属超声焊接过程模拟[J]. 焊接学报, 2017, 38(8): 5-9. doi: 10.12073/j.hjxb.20150908002
LI Huan, CAO Biao, YANG Jingwei, CUI Xiaoyu. Modeling of ultrasonic metal welding of Cu-Al joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(8): 5-9. doi: 10.12073/j.hjxb.20150908002
Citation: LI Huan, CAO Biao, YANG Jingwei, CUI Xiaoyu. Modeling of ultrasonic metal welding of Cu-Al joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(8): 5-9. doi: 10.12073/j.hjxb.20150908002

Cu-Al异种金属超声焊接过程模拟

doi: 10.12073/j.hjxb.20150908002

Modeling of ultrasonic metal welding of Cu-Al joints

  • 摘要: 利用有限元方法建立了Cu-Al超声焊三维热—力耦合模型. 热源包括摩擦热和塑性变形热,其热流密度与焊接不同阶段材料的振幅相关. 焊接过程超声变软影响温度场分布、应力、应变场和齿的嵌入,模拟合理考虑了铜、铝超声变软的数学模型. 模拟结果表明,铜和铝的块体温度均低于熔点,最高温度出现在焊头与铜板的接触面中心;Cu-Al连接界面最高温度出现在焊接区域中心处. 同时也模拟了齿的嵌入,焊接过程中焊头齿完全嵌入铜表面,但底座齿并未完全嵌入铝中. 与热电偶测温和焊接截面形貌对比验证表明,模拟结果与实际基本吻合,较好地模拟了超声变软、热和力三者之间的作用.
  • [1] 董丰波, 陈文华, 宿国友, 等. 母材相对位置对搅拌摩擦焊接铝/铜异种金属接头性能的影响[J]. 焊接学报, 2011, 32(10): 85-88. Dong Fengbo, Chen Wenhua, Su Guoyou,etal. Effect of base metal relative positions on properties of Al/Cu FSW joint[J]. Transactions of the China Welding Institution, 2011, 32(10): 85-88[2] 吴小伟, 沈以赴, 李 博, 等. 铝-铜搅拌摩擦焊搭接焊缝共晶组织形成与抑制[J]. 焊接学报, 2014, 35(1): 87-90. Wu Xiaowei, Shen Yifu, Li Bo,etal. Formation and inhibition of eutectics in Al /Cu dissimilar metal lap joint[J]. Transactions of the China Welding Institution, 2014, 35(1): 87-90.[3] Yang J, Cao B, He X. Microstructure evolution and mechanical properties of Cu-Al joints by ultrasonic welding[J]. Science and Technology of Welding and Joining, 2014, 19(6): 500-504.[4] 李 东, 赵杨洋, 张延松. 焊接能量对铝/铜超声波焊接接头纤维组织的影响[J]. 焊接学报, 2014, 35(2): 47-50. Li Dong, Zhao Yangyang, Zhang Yansong. Effect of welding energy on microstructures of the Al/Cu joints obtained by ultrasonic welding[J]. Transactions of the China Welding Institution, 2014, 35(2): 47-50.[5] Hazlett T H, Ambekar S M. Additional studies on interface temperatures and bonding mechanisms of ultrasonic welds[J]. Welding Research Supplement, 1970, 49(5): 196-200.[6] Kim W, Argento A, Grima A,etal. Thermo-mechanical analysis of frictional heating in ultrasonic spot welding of aluminium plates[J]. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2011, 225(7): 1093-1103.[7] Jedrasiak P, Shercliff H, Chen Y. Modeling of the thermal field in dissimilar alloy ultrasonic welding[J]. Journal of Materials Engineering and Performance, 2015, 24(2): 799-807.[8] Senouci A, Zaidi H, Frene J. Damage of surfaces in sliding electrical contact copper/steel[J]. Applied Surface Science, 1999, 144(1): 287-291.[9] Chao Y, Qi X, Tang W. Heat transfer in friction stir welding-experimental and numerical studies[J]. Journal of Manufacturing Science and Engineering, 2003, 125(1): 138-145.[10] Yadav S. Thermomechanical analysis of an ultrasonic rapid manufacturing (URM) system[J]. Journal of Manufacturing Process, 2005, 7(2): 153-161.[11] Siddiq A, Ghassemieh E. Thermomechanical analyses of ultrasonic welding process using thermal and acoustic softening effects[J]. Mechanics of Materials, 2008, 40(12): 982-1000.[12] Hung J, Tsai Y, Hung C. Friction effect of ultrasonic-vibration on upsetting[J]. Ultrasonics, 2007, 46(3): 277-284.[13] Huang H, Chang B, Du D. Effect of superimposed ultrasound on mechanical properties of copper[J]. Materials Science and Technology, 2011, 27(7): 1117-1122.
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  • 收稿日期:  2015-09-08

Cu-Al异种金属超声焊接过程模拟

doi: 10.12073/j.hjxb.20150908002

摘要: 利用有限元方法建立了Cu-Al超声焊三维热—力耦合模型. 热源包括摩擦热和塑性变形热,其热流密度与焊接不同阶段材料的振幅相关. 焊接过程超声变软影响温度场分布、应力、应变场和齿的嵌入,模拟合理考虑了铜、铝超声变软的数学模型. 模拟结果表明,铜和铝的块体温度均低于熔点,最高温度出现在焊头与铜板的接触面中心;Cu-Al连接界面最高温度出现在焊接区域中心处. 同时也模拟了齿的嵌入,焊接过程中焊头齿完全嵌入铜表面,但底座齿并未完全嵌入铝中. 与热电偶测温和焊接截面形貌对比验证表明,模拟结果与实际基本吻合,较好地模拟了超声变软、热和力三者之间的作用.

English Abstract

李欢,曹彪,杨景卫,崔晓宇. Cu-Al异种金属超声焊接过程模拟[J]. 焊接学报, 2017, 38(8): 5-9. doi: 10.12073/j.hjxb.20150908002
引用本文: 李欢,曹彪,杨景卫,崔晓宇. Cu-Al异种金属超声焊接过程模拟[J]. 焊接学报, 2017, 38(8): 5-9. doi: 10.12073/j.hjxb.20150908002
LI Huan, CAO Biao, YANG Jingwei, CUI Xiaoyu. Modeling of ultrasonic metal welding of Cu-Al joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(8): 5-9. doi: 10.12073/j.hjxb.20150908002
Citation: LI Huan, CAO Biao, YANG Jingwei, CUI Xiaoyu. Modeling of ultrasonic metal welding of Cu-Al joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(8): 5-9. doi: 10.12073/j.hjxb.20150908002
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