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郑明月,张少明,胡强,徐骏,毛卫民,贺会军,刘英杰,盛艳伟,赵文东.基于钛丝高频感应熔化气体雾化工艺的熔化数值模拟及实验研究[J].稀有金属材料与工程(英文),2019,48(6):1819~1828.[zhengmingyue,zhangshaoming,huqiang,徐骏,maoweimin,hehuijun,liuyingjie,shengyanwei and zhaowendong.Melting Numerical Simulation and Experimental Research Based on Wire Induction heating Gas Atomization[J].Rare Metal Materials and Engineering,2019,48(6):1819~1828.]
Melting Numerical Simulation and Experimental Research Based on Wire Induction heating Gas Atomization
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Received:June 28, 2018  Revised:September 20, 2018
DOI:
Key words: additive manufacturing  wire induction heating gas atomization  melting model  numerical simulation and experimental investigation
Foundation item:国家高技术研究发展计划(863计划)
Author NameAffiliation
zhengmingyue,zhangshaoming,huqiang,徐骏,maoweimin,hehuijun,liuyingjie,shengyanwei and zhaowendong  
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Abstract:
      This study developed a new preparation process for titanium powder for additive manufacturing- Wire Induction heating Gas Atomization (WIGA). The combination of numerical simulations and experimental investigations was used to investigate the high frequency induction melting of titanium wire. The numerical simulations obtained the optimal parameters of the titanium wire induction melting model. The angle α of the induction coil is 90°. The power output frequency f is 450 kHz. The diameter of the titanium wire was 4mm, and the minimum wire feed speed was 45 mm/s when forming a 15 mm length of metal flow. Under this condition, the critical output power is 34kW when the molten metal generates 350±50°C of superheat. An argon atmosphere protective titanium melting experimental device was established. Through experimental investigations, the minimum TC4 wire feed speed was 50 mm/s when forming a 15 mm length of metal flow,and the error between the experimental and the numerical simulation was 10.0%. Under this condition, the minimum output power of the power supply was 38kW when generating a molten metal with a superheat of 350±50°C, the experimental and numerical simulation errors were 10.5%. The experimental and numerical simulation results proved each other, and the engineering application basis of high frequency induction melting of titanium wire was obtained.