摘要
目前生产中工艺规程的制定大都建立在经验或实验的基础上 ,许多工艺环节无法进行定量计算、产品质量难以保证 ,针对这一制造难题 ,将有限元技术引入工艺过程的分析计算 .研究了切削力对薄壁零件加工变形的影响 ;建立了切削加工过程中 ,因材料去除引起毛坯初始残余应力释放与再分布 ,导致工件产生加工变形的有限元分析模型 ,并进行了实验验证 .根据有限元模拟分析结果 。
Aimed at the actuality that the development of the technical procedure was based on experiences or experiments, which cannot be calculated quantitatively, and the product quality cannot be guaranteed, the finite element method (FEM) was introduced to compute the manufacture technology. The influences of cutting forces on machining distortion of thin -wall components were studied. Machining distortion due to the release and re-distribution of the residual stress was simulated by adopting FEM. An experiment was carried out to validate the FEM result. Good agreement was found between the finite element result and the experiment values. Based on the simulation result, manufacturing processes were put forward to improve machining precision of the products.
出处
《山东大学学报（工学版）》
CAS
2005年第1期17-21,26,共6页
Journal of Shandong University（Engineering Science）
基金
国家自然科学基金重点资助项目 (5 0 43 5 0 2 0 )
关键词
有限元
模拟
制造工艺
加工变形
finite element method
simulation
manufacturing technology
machining distortion
