摘要
以细长阶梯轴为研究对象,提出了一种全新的轴类零件建模和网格划分方法。通过数值模拟研究了阶梯轴的温度场分布、应力场分布及轴的变形结果。根据关键节点的温度变化规律,验证了激光熔覆加工能量密度集中,热影响区域小的特点。分析了细长轴在激光熔覆过程中变形的原因,结果表明约束对热变形的抑制有很好的作用。对实际工程应用有重要的指导意义。
A new model of shaft part modeling and meshing is proposed The temperature field distribution, the stress field distribution and the deformation results of the shaft are studied by numerical simulation. According to the law of temperature change of key nodes, it is proved that the energy density of laser cladding is concentrated and the heat affected zone is small. The reason of the deformation of the slender shaft in the laser cladding process is analyzed The results show that the constraint has a good effect on the inhibition of thermal deformation. On the practical application of engineering has important guiding significance.
作者
黄勇
马文涛
张海明
于松林
潘江如
HUANG Yong MA Wentao ZHANG Haiming YU Songlin PAN Jiangru(Xinjiang Institute of Engineering, Urumqi 830091, China Xinjiang Kaiyuan Heavy lndustry Machinery Co., Ltd., Urumqi 830000, China)
出处
《机电设备》
2017年第4期28-34,37,共8页
Mechanical and Electrical Equipment
基金
乌鲁木齐市科技产业化计划(C151010004)
关键词
细长轴
激光熔覆
变形
slender shafi parts
laser cladding
dejormation