现代制造工程Issue(11)：130-135,6.DOI:10.16731/j.cnki.1671-3133.2017.11.024
修复速度对脉冲冷焊修复层温度场的影响
The effect of repairing speed on temperature field of pulsed cold welding repair layer
摘要
Abstract
Pulse cold welding repair rate is a key factor in determining the quality of repair layer.In order to determine the effect of different repair rates on the temperature field of the pulse cold welding layer,a 45 steel specimen was machined to a rectangular parallelepiped with a size of 50mm × 6mm × 1 mm.Firstly,a three-dimensional finite element analysis model was established,and the dynamic distribution of the temperature field at different repairing rates was simulated by the method of body generating load.The change of the temperature field feature of the repairing layer was discussed by the method of applying the heat generation rate to the unit which was constantly activated during the repair.And then through the DZMH-6 pulse cold welding equipment,the use of thermocouple and XSR30 paperless recorder to determine the real temperature field distribution.Research shows that:The temperature rise rate and the temperature peak of 2.3mm/s are larger than 2.5mm/s,and the temperature field results of numerical simulation are in good agreement with the actual measurement results.The use of life and death unit technology and body heat rate heat source can effectively predict the real pulse cold welding process temperature field.关键词
脉冲冷焊/修复速度/温度场/数值模拟Key words
pulse cold welding/repair speed/temperature field/numerical simulation分类
机械制造引用本文复制引用
赵运才,徐颖,上官绪超..修复速度对脉冲冷焊修复层温度场的影响[J].现代制造工程,2017,(11):130-135,6.基金项目
国家地方联合工程实验室开放基金项目(201713) （201713）
江西省自然科学基金项目(2012BAB206026) （2012BAB206026）
江西省教育厅资助项目(GJJ14424) （GJJ14424）
