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基于LabVIEW的熔滴过渡过程参数检测系统的方案设计 总被引:1,自引:0,他引:1
介绍了一种在LabVIEW平台下使用第3方数据采集卡开发虚拟仪器的实现方案.利用LabVIEW中的Queue技术简化了数据采集、显示与储存的编程.在此基础上,设计了GMAW-P焊接信号采集和分析系统,实现了熔滴过渡图像和电信号同步采集,并可时其进行在线和离线分析。 相似文献
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The temperature fields and the weld pool geometries for laser + GMA W-P hybrid welding, laser welding and pulsed gas metal arc welding (GMAW-P) are numerically simulated in quasi-steady state by using the developed heat source models, respectively. The calculated weld cross-sections of the three types of welding processes agree well with their respective measured results. Through comparison, it is found that the temperature distribution of laser+ GMAW-P hybrid welding possesses the advantages of those in both laser and GMA W-P welding processes so that the improvement of welding productivity and weld quality are ensured. 相似文献
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A double-variable decoupling control scheme was proposed for GMAW-P process of aluminum helping to efficiently develop welding procedure. Weld pool width and arc length were both measured through vision sensing in welding process. Weld bead shape was improved by changing the current waveforms to adjust the heat input while the arc length was controlled to stabilize the welding process. An experimental system was developed to sense, observe and control the welding process real-timely. Experiments were conducted to verify the effectiveness of the scheme. The results show that good weld bead shape and stable welding process can be obtained through the double-variable decoupling control scheme without complex metal transfer control and considerable trial and error to identify suitable combinations of welding parameters in GMAW-P. This control scheme provides an alternative to obtain proper weld quality for GMAW-P. 相似文献
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分析D1422mm厚壁X80钢管焊接性,对D1422mm厚壁X80钢管进行了GMAW-P自动焊焊接工艺试验,测试环焊接头力学性能,总结焊接工艺控制要点,并利用系列温度夏比冲击试验测定环焊接头的韧脆转变温度点。结果表明,采用GMAW-P自动焊工艺焊接D1422mm厚壁X80钢管可以有效避免X80钢热影响区软化现象,力学性能满足规范要求,GMAW-P自动焊环焊接头韧脆转变温度点低,满足在低温环境下施工及服役的安全性要求。在我国中俄东线管道的建设中,GMAW-P自动焊工艺将是主要的焊接工艺之一。 相似文献