1561铝合金薄板随焊干冰激冷变形控制

doi:10.3901/JME.2019.06.067

机械工程学报 ›› 2019, Vol. 55 ›› Issue (6): 67-73.doi: 10.3901/JME.2019.06.067

• 特邀专栏：焊接力学与结构设计 • 上一篇下一篇

1561铝合金薄板随焊干冰激冷变形控制

闫德俊^1,2, 王赛^1,2, 郑文健², 余洋^1,2, 谢浩^1,2, 钟美达¹, 邹晓峰¹, 杨建国²

1. 中船黄埔文冲船舶有限公司广东省舰船先进焊接技术企业重点实验室广州 510715;
2. 浙江工业大学化工机械设计研究所杭州 310032

收稿日期:2018-06-07 修回日期:2018-09-08 出版日期:2019-03-20 发布日期:2019-03-20
通讯作者: 王赛(通信作者),男,1993年出生,博士研究生。主要研究方向为焊接变形控制等。E-mail:wangsai12226@126.com
作者简介:闫德俊,男,1978年出生,博士,高级工程师。主要研究方向为船舶与海洋工程焊接技术、焊接变形控制等。E-mail:yandejun_2003@163.com;郑文健,男,1985年出生,博士。主要研究方向为焊接过程数值模拟。E-mail:zwj0322@zjut.edu.cn
基金资助:
中国博士后科学基金（2016M590821）、国防基础科研计划（A0720133002）和广东省舰船先进焊接技术企业重点实验室（2017B030302010）资助项目。

Control of Welding Distortion by Welding with Trailing Cooling of Drikold of 1561 Aluminum Alloy Thin Sheet

YAN Dejun^1,2, WANG Sai^1,2, ZHENG Wenjian², YU Yang^1,2, XIE Hao^1,2, ZHONG Meida¹, ZOU Xiaofeng¹, YANG Jianguo²

1. Key Enterprise Laboratory of Ship Advanced Welding Technology, CSSC Huangpu Wenchong Shipbuilding Company Limited, Guangzhou 510715;
2. Institute of Process Equipment and Control Engineering, Zhejiang University of Technology, Hangzhou 310032

Received:2018-06-07 Revised:2018-09-08 Online:2019-03-20 Published:2019-03-20

摘要/Abstract

摘要： 目前随焊激冷技术存在装置复杂、占用空间大、冷却介质低效等缺点，为改善其在船舶制造业上的应用，提出随焊干冰激冷技术。采用数值模拟与试验分析相结合的方法研究随焊干冰激冷对铝合金薄板变形的控制。对喷嘴喷射干冰形成的冷源温度场进行测量。并基于测试结果建立冷源模型，实现了随焊干冰激冷的有限元数值模拟。通过研究冷却距离对残余应力和变形的控制效果，优化随焊干冰激冷工艺。研究表明，现有条件下最优的冷却距离约为40 mm。通过施加随焊干冰激冷最优工艺，纵向残余拉应力峰值减小46.9%，纵向压应力峰值减小40.8%，焊接变形量减小51.5%。理论及试验结果表明，随焊干冰激冷技术是一种控制薄板焊接应力及变形的有效手段，为随焊激冷技术在船舶制造业上的应用提供一个方向。

关键词: 焊接变形控制, 铝合金, 数值模拟, 随焊干冰激冷

Abstract: At present, with the disadvantages of complex equipment, large space, and inefficient cooling medium, the technology of welding with trailing cooling of driold has been proposed to improve its application in shipbuilding industry. The mean of combining numerical simulation and experimental analysis is implemented to study the distortion control of aluminum alloy sheet during welding with trailing cooling of drikold. The relevant experimental equipment is built to measure the cold source temperature field formed by spraying from nozzle after drikold particles. The established cold source model based on the result of tests is substituted into the corresponding finite element analysis in order to simulate welding process. The effect of cooling distance on residual stress and distortion is studied, and the welding with trailing cooling of drikold is optimized. The results show that the optimal cooling distance is about 40 mm under existing conditions. The longitudinal residual tensile stress decreases by 46.9%, the longitudinal compressive stress decreases by 40.8%, and the welding distortion decreases by 51.5%. The theoretical and experimental results show that the welding with trailing cooling of drikold technology is an effective method to control the welding stress and distortion of thin sheet, which provides a direction for the application of the welding technology in shipbuilding industry.

Key words: aluminum alloy, control of welding distortion, numerical simulation, welding with trailing cooling of drikold

中图分类号:

TG404

闫德俊, 王赛, 郑文健, 余洋, 谢浩, 钟美达, 邹晓峰, 杨建国. 1561铝合金薄板随焊干冰激冷变形控制[J]. 机械工程学报, 2019, 55(6): 67-73.

YAN Dejun, WANG Sai, ZHENG Wenjian, YU Yang, XIE Hao, ZHONG Meida, ZOU Xiaofeng, YANG Jianguo. Control of Welding Distortion by Welding with Trailing Cooling of Drikold of 1561 Aluminum Alloy Thin Sheet[J]. Journal of Mechanical Engineering, 2019, 55(6): 67-73.

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1561铝合金薄板随焊干冰激冷变形控制

Control of Welding Distortion by Welding with Trailing Cooling of Drikold of 1561 Aluminum Alloy Thin Sheet

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