Dissertation on the effect radius of punch die radius and affecting force in deep drawing of cylindrical workpiece Cup round. The workpiece diameter cylindrical cup 34 mm mm high 40 materials used as steel in accordance with AISI 1006 thickness 1 mm. Using coconut oil lubricants, radius of punch 1.5 mm, 2.75 mm, 4 mm, 6.5 mm, 8 mm and 9.5 mm by a constant radius at the 8th 6 mm. And the die radius 3 mm, 4 mm, 5 mm, 6 mm, 7 mm and 8 mm by a constant radius of punch that 4 mm. Blank holder pressure constant pressure 10 percent of any force in drawing maximum. And the speed of drawing 35 mm per second, which study the impact factor and the punch radius end bright mouth easily affecting force in deep drawing of cylindrical workpiece Cup round.The results of the experiment. The 1 punch is 1.5 radius, mm, mm 2.75 4 mm, 6.5 mm, 8 mm, 9.5 mm. By a constant radius of die 6 mm. The results show that the radius of punch on force drawing slightly or may not result in อย่างชัดเจนมาก on strength used in drawing. From the graph, which values were slightly different. According to the theory, and die radius is 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm. By a constant radius of punch that 4 mm. The results showed that the die radius grows to make force in drawing down. Because while the drag on the image. If the radius of die for big size will make the flow of the sheet material into the gap. The force used in drawing. Because there is less friction from pressing the recording itself.It is concluded that the radius of punch by a constant radius of die 6 mm. The results show that the radius of punch on force drawing slightly or may not result in อย่างชัดเจนมาก on force used in deep drawing die radius. By a constant radius of punch that 4 mm. The results showed that the die radius grows to make force in drawing down. And will make the flow of the sheet material into the gap.
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