中國(guó)有色金屬學(xué)報(bào)(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 22 No. 7 July 2012 |
（Key Laboratory of Advanced Manufacturing Technology of Surface Functional Structure of
Guangdong Higher Education Institutes, South China University of Technology, Guangzhou 510640, China）
Abstract:To investigate the workpiece curvature influence on groove deformation, numerical studies with curvature varying from negative to positive were conducted on copper material. Groove deformations were analyzed, including groove geometry, effective stress distribution and plough force. The curled groove shape whose workpiece curvature was 0.133 mm-1 was validated by experiments. Moreover, a series of geometry models with various curvatures were introduced to analyze the change of groove deformation. The results show that positive curvatures influence groove deformation more intensively than negative or zero curvature. It is mainly due to the action of the tool forming face during plough process.
Key words: plough; workpiece curvature; microgroove; microchannel; finite element method
