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提高温度补偿片冲裁模使用寿命南京汽车工业总公司汽车研究所（南京２１００２８）王建中施万平潘伟宁陶中汽车仪表零件尺寸精度高、量大，对模具的结构、使用寿命有高的要求。温度补偿片属软磁合金材料，牌号为１Ｊ３８，孔的尺寸５＋０．１２＋０．０８ｍｍ。原模具的...
Improve the service life of blanking die of temperature compensating piece. Automobile Research Institute of Nanjing Automobile Industry Corporation (Nanjing 210028) Wang Jianzhong Shi Wanping Pan Weining Tao Zhong The precision of automobile instrument parts is high and the quantity is large. The structure and service life of the mold are high. Temperature compensation film is a soft magnetic alloy material, grade 1J38, hole size 5 +0.12 +0.08 mm. The original mold ...