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材料导报  2019, Vol. 33 Issue (1): 162-166    https://doi.org/10.11896/cldb.201901019
  材料与可持续发展(二)——材料绿色制造与加工* |
旁路耦合微束等离子弧焊增材制造的热过程
余淑荣1, 程能弟1, 黄健康2, 李楠2, 樊丁2
1 兰州理工大学机电工程学院,兰州 730050
2 兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室,兰州 730050
Thermal Process of Additive Manufacturing Double-electrode Micro-plasma Arc Welding
YU Shurong1, CHENG Nengdi1, HUANG Jiankang2, LI Nan2, FAN Ding2
1 School of Mechanical and Electrical Engineering, Lanzhou University of Technology, Lanzhou 730050
2 State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou 730050
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摘要 针对旁路耦合微束等离子弧焊电弧增材制造中的热物理过程,利用K型热电偶测量堆垛过程中不同焊接速度、不同旁路电流和不同堆垛顺序下的热循环曲线,分析研究堆垛成型时各参数对热过程的影响。结果表明:随着焊接速度的增大,母材热输入减小;在合适的旁路电流区间内,增加旁路电流,母材热输入减少;且同向堆垛散热性要优于往复堆垛。精确控制旁路电流、合理规划堆垛路径可较好地控制旁路耦合微束等离子弧焊电弧增材制造的热过程。
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余淑荣
程能弟
黄健康
李楠
樊丁
关键词:  电弧增材制造  旁路耦合微束等离子弧焊  热过程    
Abstract: The thermal physical process of bypass coupling micro plasma arc welding in additive manufacturing process was studied. Concretely, the thermal cycle curves were measured by K type thermocouple at various welding speeds, bypass currents and stacking sequences in stacking forming. And the influence of each parameter on the thermal process was analyzed. The results show that the heat input of the base metal declines with the increase of welding speed. In appropriate range of bypass current, enlarging the bypass current can reduce the heat input of the base metal. Meanwhile, the unidirectional stacking shows better heat dissipation than reciprocating stacking. The control of thermal process of bypass coupling micro plasma arc welding in additive manufacturing can be realized by precise control of bypass current and reasonable plan of stacking path.
Key words:  wire arc additive manufacture    double-electrode micro-plasma arc welding    thermal process
               出版日期:  2019-01-10      发布日期:  2019-01-24
ZTFLH:  TG475  
基金资助: 国家自然科学基金(51665034)
作者简介:  余淑荣,兰州理工大学教授,硕士研究生导师, yushur1991@163.com。
引用本文:    
余淑荣, 程能弟, 黄健康, 李楠, 樊丁. 旁路耦合微束等离子弧焊增材制造的热过程[J]. 材料导报, 2019, 33(1): 162-166.
YU Shurong, CHENG Nengdi, HUANG Jiankang, LI Nan, FAN Ding. Thermal Process of Additive Manufacturing Double-electrode Micro-plasma Arc Welding. Materials Reports, 2019, 33(1): 162-166.
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http://www.mater-rep.com/CN/10.11896/cldb.201901019  或          http://www.mater-rep.com/CN/Y2019/V33/I1/162
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