Preliminary study of a deep drawing process modelling for AL-5083 aluminium material

摘要

The research deals with the preliminary study of deep drawing process modeling for AL-5083 aluminium material. Sheet metal based products are often seen in many goods such as cans, vehicle bodies, aircraft bodies etc. Prior to forming, the properties of sheet metal material must be analyzed in advance. Several properties that are required to be taken into account include form ability, spring back, wrinkling and anisotropy. One kind of forming process on sheet metal is deep drawing process. In this research a simulation using finite element method will be implemented in preliminary study of deep drawing process modeling. The parameters examined include the effect of friction coefficient, punch velocity towards depth of drawn and load shortly before necking. Based on the simulation, it is concluded that the increment of friction coefficient will reduce the depth of drawn and load of the punch. The increment of punch velocity will decrease the load. The optimum value that will give maximum depth of forming shortly before necking and the punch speed with the lowest load is at friction coefficient 0.08 and punch velocity 4 mm/s. At friction coefficient 0.08, depth of drawn shortly before necking is 12 mm and at 4 mm/s of punch velocity, the lowest load is 27100 N.