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A software system of pattern recognition on spectrum signal of metal transfer mode has been developed using Visual Basic under Windows environment. On the basis of the coincidence relation between the spectrum signal and metal transfer mode, according to the geometrical pattern feature of the spectrum signal, several key characteristic parameters are extracted. The correspondent recognition function and a minimum distance classifier have been constructed based on Bayesian decision theory. The results show that using this system, the metal transfer mode of MIG, MAG, CO2 welding can be recognized automatically which provides the basis for automatically controlling of the metal gas arc welding metal transfer. 相似文献
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熔化极气体保护焊熔滴过渡检测方法现状与展望 总被引:3,自引:0,他引:3
熔化极气体保护焊熔滴过渡检测具有重要的实际意义。本文回顾了近年来国内外这一领域的研究现状,阐述了每一种检测手段的原理、优点及局限性。最后,对现有的熔滴过渡检测方法作出了综合评价。 相似文献
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0IntroductionThe metal transfer mode of metal gas arc welding(MIG,MAG,CO2)is usually recognized according to arcform,dropletshape and size by using high-speed photogra-phy method.In order to obtain the ideal transfer mode,standard parameters are always set in force based on prac-tical experience.How to recognize the transfer mode dur-ing the welding process is the question aroused much atten-tion.The shortcoming of using electronic signal lies that itis limited to certain kind of transfer … 相似文献
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0 IntroductionPlasmaarcpowdersurfacinghastheadvantageofhighdepositionefficiency ,shallowfusiondepth ,concentratedenergyandhighproductivity ,soithasbeenappliedsuccessfullyinmanufacturingindustrysuchasinternal combustionengine ,valve ,etc .,andhasobtainedgood… 相似文献
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系统地研究了焊接热输入对X65钢焊缝金属组织及性能的影响。研究结果表明,热输入对焊缝金属组织及性能有显著影响。对于焊缝结晶组织,随着热输入的增加,柱状晶比例减小,等轴晶比例增大,柱状晶宽度增大,对于焊缝室温组织,随着热输入的增加,先共析铁素体有所增加,侧板条铁素体减少,针状铁素体先增加,但当焊接热输入达到2022J/mm后,针状铁素体量反而减少。焊缝金属低温冲击吸收功随热输入的增加而增大,当热输入达到2022J/mm后,则随热输入的增加而减小。 相似文献