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浙江大学学报(工学版)
J4  2013, Vol. 47 Issue (9): 1625-1630    DOI: 10.3785/j.issn.1008-973X.2013.09.017
机械工程     
手动托盘车焊接工艺的焊接变形仿真及预测
蒋丰骏,徐月同,邓小雷,陈子辰
浙江大学 浙江省先进制造技术重点实验室,浙江 杭州 310027
Simulation and prediction for welding deformation
on welding procedure of hand pallet truck
JIANG Feng-jun, XU Yue-tong, DENG Xiao-lei, CHEN Zi-chen
Zhejiang Province Key Laboratory of Advanced Manufacturing Technology, Zhejiang University,Hangzhou 310027, China
 全文: PDF 
摘要：

为精确分析托盘车在焊接过程中产生的热变形,在充分考虑工况、相变、热力学参数等动态变化的基础上,采用传热学理论与热弹塑性理论,建立托盘车货叉与中档的焊接多物理场耦合分析模型,应用参数化编程对货叉与中档现有的焊接工艺进行了仿真分析,其分析结果与试验结果的误差在16.7%以内,验证了分析模型的有效性.仿真分析了改变焊接方向与多机器人同步焊接的工艺调整方案对焊接热变形的影响,结果表明：二者可分别降低焊接变形0.9 mm与1.3 mm,达到了控制变形的目的.本研究为手动托盘车自动化夹具设计、工艺优化设计等奠定了基础.
关键词： 焊接工艺;  焊接变形;  热弹塑性模型;  多机器人同步焊接    
Abstract:

 In order to analyze the thermal deformation of the hand pallet truck during welding accurately, a multi-field coupling model of welding between pallet fork and middle baffle of the hand pallet truck was established using heat transfer theory and thermal elastic-plastic theory, in which various dynamical changes of parameters, such as working condition, phase transition, and thermodynamical parameters of the material, were took fully into account. Through the parametric programming, the existing welding procedure was simulated. Compared to the experimental results,the error of the simulation results was less than 167%,  which verified the effectiveness of the model. The effects of procedure adjustment on welding deformation were also studied. The results show that optimating welding direction and synchronous welding can reduce welding deformation of 0.9 mm and 1.3 mm, respectively. The study  lays the foundation for automated fixture design and craft optimization of hand pallet truck manufacturing．
Key words: welding procedure    welding deformation    thermal elastic-plastic model    multi-robot synchronous welding
出版日期: 2013-09-17
:  TG 404  
基金资助:

国家自然科学基金资助项目（51175461,50675199）;宁波市重大科技攻关资助项目（2012B10043）.
通讯作者: 徐月同，男，副教授.     E-mail: xyt@zju.edu.cn
作者简介: 蒋丰骏（1986-），男，硕士生，主要从事焊接生产线设计与焊接工艺优化的研究. E-mail：dreamjfj@zju.edu.cn
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引用本文:

蒋丰骏,徐月同,邓小雷,陈子辰. 手动托盘车焊接工艺的焊接变形仿真及预测[J]. J4, 2013, 47(9): 1625-1630.

JIANG Feng-jun, XU Yue-tong, DENG Xiao-lei, CHEN Zi-chen. Simulation and prediction for welding deformation
on welding procedure of hand pallet truck. J4, 2013, 47(9): 1625-1630.

链接本文:

http://www.zjujournals.com/xueshu/eng/CN/10.3785/j.issn.1008-973X.2013.09.017    或    http://www.zjujournals.com/xueshu/eng/CN/Y2013/V47/I9/1625

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