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1993年P/M主轴盖第一次被应用于通用汽车公司3100和3800V6引擎中。这种产品每年消耗粉末5000t以上,在北美应用量最大。在这里P/M材料被选择来代替传统的铸铁材料。由于P/M材料性能优越,而且具有可以达到或者接近最终形状的性能,因此可以省去采用铸铁材料时用在主轴盖加工流水线上的投资,而且可以解决由于灰铸铁的强度不够而球墨铸铁既昂贵加工又困难所带来的问题。
1993 P / M spindle cover was first applied to General Motors 3100 and 3800V6 engines. This product consumes more than 5,000 tons of powder each year and is the most widely used in North America. Here P / M material is chosen to replace the traditional cast iron material. Because P / M materials are superior in performance and have properties that can be achieved or are close to the final shape, investment in spindle head machining lines when using cast iron materials can be dispensed with and it is possible to solve the problem that due to the insufficient strength of gray cast iron, Expensive processing and problems caused by the difficulties.