熔化极气体保护焊熔滴过渡形式及路径对增材制造熔敷层几何尺寸的影响
首发时间:2016-05-12
摘要:基于机器人MIG焊接技术,对增材制造金属零件进行了初步研究。通过分析熔化极惰性气体保护焊熔滴过渡形式及焊接参数在增材制造过程中对成形熔敷层几何尺寸的影响,得出了最佳成形时熔滴的过渡形式及焊接参数范围,初步探究了直线与直线过渡,直线与圆弧过渡和圆弧与圆弧过渡三种成形路径形式对成形精度的影响。结果表明熔敷层宽度随焊接电流的增加呈线性增加,不同成形路径对成形精度有很大的影响,为了控制成形零件的成形精度,需要精确调节不同路径过渡处焊接参数。为增材制造技术的进一步研究和在传统制造行业中的应用奠定了基础。
关键词: 增材制造 熔化极惰性气体保护焊 成形路径
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The Effect of Gas Metal-Arc Welding Metal Transfer Mode and Trajectory on the Layer Geometry Shape in Additive Manufacturing
Abstract:This paper presents a preliminary investigation results on an additive manufacturing technique based on robotic MIG welding. The optimum droplet transition state and welding parameters were summarized through analyzing the effect of droplet transition state and welding parameters of MIG welding in additive manufacturing process on the deposition layer geometry shape. The influences of three kinds of typical trajectory including straight line with straight line, straight line with circle, circle with circle on the layer geometry shape of the additive manufacturing were studied. The results show that the cladding layer width increases linearly with the increasing of welding current, and the different forming path has great influence on the forming accuracy. In order to control the forming precision of the forming parts, precise adjustment of welding parameters to different path transition. This laid the foundation for the further research of additive manufacturing technique and its application in traditional manufacturing.
Keywords: Additive manufacturing Metal inert-gas welding Welding trajectory
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熔化极气体保护焊熔滴过渡形式及路径对增材制造熔敷层几何尺寸的影响
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