%0 Conference Paper
%D 2000
%T Automated design of sheet metal bending tools
%A Alva,U.
%A Gupta,S.K.
%A Gupta,R. K.
%X Sheet metal bending is a process in which bends are formed using a combination of apunch and a die. Bending tools need to satisfy the following two criteria: (1) tools should be able to withstand bending forces, and (2) tool shapes should be such that there is no tool-part interference. In this paper, we describe a systematic methodology for automatically synthesizing a punch shape that can be used to produce more than one type of part. We create a parametric geometric model of possible punches. This parametric model describes a family of possible punch shapes. Using the geometric models of various given part types and a parametric punch model, we automatically generate constraints on punch parameters that eliminate the possibility of part-tool interference. We use mixed integer programming techniques to solve these constraints and identify parameters of a punch shape that can work for the given set of parts. Finally, we perform strength analysis of the designed punch to verify that the designed punch is capable of withstanding the bending forces.
%8 2000///
%G eng
%U http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.34.5031&rep=rep1&type=pdf