Improvement on straightness of metal bar based on straightening stroke-deflection model

作     者：LEOPOLD Juergen 

作者机构：Fraunhofer Institute for Machine Tools and Forming Technology Chemnitz Germany 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2009年第52卷第7期

页      面：1866-1873页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：Supported by China Ministry of Education Visiting Scholar Fund(Grant No.2005383) Hubei Province Science Foundation(Grant No.2008CDB274) Wuhan High-Tech Development Project Foundation(Grant No.200812121559) 

主　　题：straightness straightening stroke deflection stroke prediction metal bar 

摘      要：The straightening technics is one of important means to improve the straightness of metal bar. A novel way of predicting the straightening stroke is proposed based on mathematical methods and bending experimental and numerical simulation. The experimental and numerical simulation is conducted by following the mathematical load-stroke model of press straightening process under the elastic-plastic theory. For the linear guide rails, as an example, the stroke-deflection model focusing on the straightening stroke prediction can be achieved by contrasting and integrating the bending experimental results and finite element methods (FEM) simulation data. And then the formula for predicting the straightening stroke is presented based on the precise straightening stroke-deflection model. The stroke prediction formula with high precision can be applied to the straightening stroke prediction in the high straightness metal bar manufacturing process and automatic straightening machine conveniently.