AZ 31 B マグネシウム合金板の深絞り加工シミュレーション(機械要素,潤滑,工作,生産管理など)

概要

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Recently, magnesium alloys are often applied in the auto industries and electric appliances. Most of them are manufactured by using some casting method. However, from the viewpoints of productivity and quality of product, it is easily expected that the develeopment of press forming technology is strongly required along with other metals and alloys. In this study, first, warm deep drawing tests were performed to understand its deep drawability. From the result of drawing test, limit of drawing ratio of AZ31B plate is resulted in 3.0 by heating the die and cooling the punch. Next, simulation of warm deep drawing on AZ31B magnesium was tried and evaluated for calculating the optimum press condtions. FEM with non linear and dynamic expricit was used for the simulation. In the simulation, the tensile tests were performed to understand its material behavior, and forming limit diagram (FLD) was also used to decide the drawing limit. It is concluded from the results that (1) The simulation of warm deep drawing on AZ31B magnesium conformed to the resluts of the actual experiments. (2) The simulation was very effective for calculating the optimum press condtions.
一般社団法人日本機械学会の論文
2006-02-25