用图1表示的冲模来冲制六方头螺栓,可以降低制造成本,提高劳动生产率2～3倍。冲制前毛坯的尺寸如图2所示。它可以用精車或冷鐓的方法加工出来。这套冲模的上下凹模建議用9钢制造,詳細尺寸请参考图3和图4。在安装这套冲模的时候,上下凹模要調整到0.3～0.5公厘的距离,以保証冲床工作的安全。 Using the die shown in Figure 1 to punch a hexagonal head bolt reduces manufacturing costs and increases labor productivity by two to three times. Blank size before stamping shown in Figure 2. It can be finished by fine car or cold heading method. The die is recommended to use the upper and lower die 9 made of steel, the detailed dimensions, please refer to Figure 3 and Figure 4. In the installation of this set of die, the upper and lower die to be adjusted to 0.3 ~ 0.5 mm distance to ensure the safety of the press work.