| 张天雷， 徐刚， 沈艳涛， 明灿， 何林基， 马春伟.基于MIG的电弧增材制造不同层间停留时间温度场仿真模拟[J].轻工机械,2020,38(3):37-42 |
| 基于MIG的电弧增材制造不同层间停留时间温度场仿真模拟 |
| Numerical Simulation of Thermal Behavior of Different Interlayer Idle Time for MIG Based Additive Manufacturing |
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| DOI：10.3969/j.issn.1005 2895.2020.03.008 |
| 中文关键词: 电弧增材制造 熔化极惰性气体保护焊 热循环特性 温度场 层间停留时间 |
| 英文关键词:WAAM(wire and arc additive manufacturing) MIG（metal inert gas welding） thermal cycling characteristics temperature field interlayer idle time |
| 基金项目:上海工程技术大学研究生科研创新项目（18KY0514）。 |
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| 中文摘要: |
| 为了探究电弧增材制造过程温度场特征及层间停留时间对温度场的影响，课题组基于ABAQUS建立了三维瞬态的电弧增材制造仿真模型，进行了电弧增材制造过程温度场模拟；采用红外测温仪测得增材制造过程热循环曲线，将模拟结果与实测结果进行对比研究。结果表明：模拟结果和测试结果吻合良好，验证了模型的准确性；在电弧增材制造过程中随着熔覆层数的增加工件高温区域逐渐增大；保持其他参数不变增加层间停留时间可使高温区域减小；基于MIG的电弧增材制造层间可达到良好的冶金结合。 |
| 英文摘要: |
| A three dimensional finite element model of MIG based additive manufacturing were established to reach the temperature filed character and the influence of the idle time using ABAQUS software. Meanwhile, infrared thermometer was used to measure the thermal cycle curve of relevant point on the work piece.The confirmatory test shows that the calculated results match the experimental measurements well, which verifies the accuracy of the simulation. The results indicate that the high temperature zone increase as the depositing height increases with other parameter being constant,the high temperature zone reduce as the interlayer idle time increases. In MIG based additive manufacturing there is good metallurgy bonding at interlayer. |
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