Computer aided preform design in forging using the inverse die contact tracking method

Autor:	Ed Wright, Ramana V. Grandhi, Guoqun Zhao
Rok vydání:	1996
Předmět:	Engineering business.product_category business.industry Mechanical Engineering Process (computing) Mechanical engineering Deformation (meteorology) Industrial and Manufacturing Engineering Forging Finite element method Material flow Die (manufacturing) Boundary value problem business Plane stress
Zdroj:	International Journal of Machine Tools and Manufacture. 36:755-769
ISSN:	0890-6955
Popis:	The inverse die contact tracking method presented in this paper utilizes both the forward and inverse finite element simulations to design the preform shapes in forging processes. The procedure starts with the forward simulation of a candidate preform into the final forging shape. A record of the boundary condition changes is produced by identifying when a particular segment of the die makes contact with the workpiece surfaces in forward simulation. This recorded time sequence is then optimized according to the material flow characteristics and the state of die fill to satisfy the requirement of material utilization and forging quality. The modified boundary conditions are finally used as the boundary condition control criterion for the inverse deformation simulation. Additionally, a procedure to determine process staging points using trial forward simulation is given. As an example, the preform design of a plane strain forging process is performed. The fuller, buster and blocker dies are designed by using the inverse deformation simulation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::53bbd0dbe7596c733b1b1a80c5fe1087 https://doi.org/10.1016/0890-6955(96)00123-x Zobrazit plný text záznamu Full Text from ScienceDirect