熔滴主动靶向的激光间接电弧复合增材制造技术初探
发布时间:2018-09-05 06:44
【摘要】:对制造精度和效率相矛盾的原因进行了分析,为解决此矛盾,提出了一种新型的熔滴主动靶向的激光间接电弧复合增材制造技术.该技术利用交流双丝间接电弧能量熔化金属丝材实现高熔敷率,利用熔滴主动靶向激光,脉冲激光辅助定量的熔滴定点过渡到熔池保证成形精度.文中对固定质量的熔滴交替形成在固定位置进行了建模分析和初步试验研究,结果表明,通过控制送丝速度和电流频率,可实现双丝交替定点定量熔化,为熔滴主动靶向激光提供了先决条件.
[Abstract]:The reasons for the contradiction between manufacturing precision and efficiency are analyzed. In order to solve this contradiction, a new technology of laser indirect arc composite material augmentation based on active target of molten droplet is proposed. The technology uses AC double wire indirect arc energy to melt the metal wire to achieve high deposition rate, using droplet active target laser, pulse laser assisted quantitative melting titration point transition to molten pool to ensure the forming accuracy. In this paper, the model analysis and preliminary experimental study on the alternating formation of droplets of fixed mass at a fixed position are carried out. The results show that the fixed point quantitative melting can be realized by controlling wire feeding speed and current frequency. This provides a prerequisite for active laser targeting of droplets.
【作者单位】: 北京工业大学汽车结构部件先进制造技术教育部工程研究中心;国立中山大学机械与机电工程学系;
【基金】:国家自然科学基金资助项目(51475009);国家自然科学基金青年资助项目(51505009) 北京市自然科学基金资助项目(3162004) 中国博士后科学基金资助项目(2015M570021)
【分类号】:TG456
[Abstract]:The reasons for the contradiction between manufacturing precision and efficiency are analyzed. In order to solve this contradiction, a new technology of laser indirect arc composite material augmentation based on active target of molten droplet is proposed. The technology uses AC double wire indirect arc energy to melt the metal wire to achieve high deposition rate, using droplet active target laser, pulse laser assisted quantitative melting titration point transition to molten pool to ensure the forming accuracy. In this paper, the model analysis and preliminary experimental study on the alternating formation of droplets of fixed mass at a fixed position are carried out. The results show that the fixed point quantitative melting can be realized by controlling wire feeding speed and current frequency. This provides a prerequisite for active laser targeting of droplets.
【作者单位】: 北京工业大学汽车结构部件先进制造技术教育部工程研究中心;国立中山大学机械与机电工程学系;
【基金】:国家自然科学基金资助项目(51475009);国家自然科学基金青年资助项目(51505009) 北京市自然科学基金资助项目(3162004) 中国博士后科学基金资助项目(2015M570021)
【分类号】:TG456
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