熔焊成型焊缝质量控制与实验验证
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摘要
建立GMWA堆焊成型系统,包括电源、焊枪、自动送丝机、机械臂、AD信息采集卡等,可实时采集焊接过程中的成型参数,进行误差补偿和反馈修正。针对成型过程中的热输入累积和散热不均导致的熄弧端塌陷问题,构建成型质量模糊控制策略。结果表明,通过成型质量模糊控制模块的修正,可以获得堆积厚度均匀的墙体零件,经实验验证该模块的效果良好。
The quality control system of GMWA surfacing welding was set up, which including power supply, welding torch, automatic feeding machine, manipulator and AD data acquisition card. The system, which can acquire the forming parameters during the welding, compensate the error and correct the feedback data. The fuzzy control system of molding quality and the mathematical model of weld geometry size were built according to the problem that the increase of heat input and uneven of the heat caused the collapse at the end of the arc. The results show that the uniform wall thickness can be obtained under the modification of the fuzzy control module. And a large number of experiments tells that the system has good effect through the cylindrical of thin wall parts.
The quality control system of GMWA surfacing welding was set up, which including power supply, welding torch, automatic feeding machine, manipulator and AD data acquisition card. The system, which can acquire the forming parameters during the welding, compensate the error and correct the feedback data. The fuzzy control system of molding quality and the mathematical model of weld geometry size were built according to the problem that the increase of heat input and uneven of the heat caused the collapse at the end of the arc. The results show that the uniform wall thickness can be obtained under the modification of the fuzzy control module. And a large number of experiments tells that the system has good effect through the cylindrical of thin wall parts.
引文
[1]单雪海,周建平,许燕.金属快速成型技术的研究进展[J].机床与液压,2016(7):150-154.
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[7]王述彦,师宇,冯忠绪.基于模糊PID控制器的控制方法研究[J].机械科学与技术,2011(1):166-172.
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[9]崔星星,陈岳坪,陈大伟.基于神经网络的测头预行程误差预测研究[J].机械设计与制造,2016(11):55-58.
[2]徐辉丽,陈希章,徐桂芳,等.焊接快速成形技术的发展现状[J].材料导报,2015(11):114-118.
[3]Kovacevic R.Rapid prototyping technique based on 3D welding[C]//NSF Design&Manufacturing Grantees conference.1999.
[4]Wu Y,Kovacevic R.Mechanically assisted droplet transfer process in gas metal arc welding[J].Proceedings of the Institution of Mechanical Engineers,Part B:Journal of Engineering Manufacture,2002,216(4):555-564.
[5]刘一搏,孙清洁,姜云禄,等.基于冷金属过渡技术快速成形工艺[J].焊接学报,2014(7):1-4.
[6]Spencer J D,Dickens P M,Wykes C M.Rapid prototyping of metal parts by three-dimensional welding[J].Proceedings of the Institution of Mechanical Engineers,Part B:Journal of Engineering Manufacture,1998,212(3):175-182.
[7]王述彦,师宇,冯忠绪.基于模糊PID控制器的控制方法研究[J].机械科学与技术,2011(1):166-172.
[8]李加念,洪添胜,冯瑞珏,等.基于模糊控制的肥液自动混合装置设计与试验[J].农业工程学报,2013(16):22-30.
[9]崔星星,陈岳坪,陈大伟.基于神经网络的测头预行程误差预测研究[J].机械设计与制造,2016(11):55-58.