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止尘伞是车辆制动装置远心集尘器中的一个零件,按照铁标规定,止尘伞要用0.5～1毫米厚的G3号钢板压制。我厂于今年第一季度用G3钢板进行了压制试验,试制结果发现在压形之后在顶部拐弯处发现有裂纹,外缘起皱。后来我们又加大了材料厚度,以便有利于拉伸,其结果仍然在原处发现有裂纹和起皱。根据以上情况我们反复进行了研究,决定改进压模和修改工艺。现将改进后的压模结构和工艺介绍于
The umbrella is a part of the telecentric dust collector of the vehicle brake device. According to the iron standard, the dust-proof umbrella shall be pressed with G-plate steel plate 0.5-1 mm thick. I plant in the first quarter of this year with the G3 steel pressed test, the trial results found in the top bend after found cracks, the outer edge of wrinkled. Later, we increased the material thickness in order to facilitate the stretching, the result is still found in place of cracks and wrinkles. Based on the above situation, we conducted repeated studies and decided to improve the stamper and modify the process. Now improved die structure and technology introduced in