Sheet metal forming in the manufacturing industry of the country at present. Often used the trial and error method and transfer skill only mostly. The selection of materials and work piece can be used properly. To consider both the production and the use of materials that need to know the behavior of the material as well. How to optimum select materials mechanical properties as desired. The test after mold design, mold experiment, trial and error is to adjust the mold for molding. Success without defects in metal forming, such as the wrinkle tear in the mold. The springback after taking out of the mold piece. The shape, not the size according to mold.