The results of experiments show that A series of progressive die used in cutting the sheet. Can cut the sheet quality work. Assist in increasing productivity and also reduce production sheet is 2 imaginable. From the process of producing commemorative coins used at present. The forming of commemorative coins, it was found that the sets of mold, stamping, souvenir coin design can molding more than existing methods 2 imaginable. The forming of the material were found Brass material can be molded better material, copper brass was because the material tensile strength less than the maximum material copper. And can be baked, not better than the copper material at low temperature. The forming of commemorative coins by pressing the compression mold series only once. From measurements of the size of the workpiece, brass, it was found that the size commemorative coins in the coordinates given. Error in the width and length overall average at the edge 0.3 mm the lost mobile in the size thickness, edge 0.2. Mm the formability of copper material is less than brass. The notice of the process requires a higher temperature steam relax brass. The size of the target in the coordinates set no more than 0.5 mm.
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