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粉末金属（Ｐ／Ｍ）在国外车用发动机上的应用及发展趋势粉末金属具有良好的抗拉强度、耐疲劳性能及尺寸控制性能。这种材料能被铸造或锻造成接近精确尺寸的各种零件，从而节约加工成本。粉末金属具备的特性使发动机连杆能运用所谓“断裂法”设计并精确制造出来。“断裂法...
Powder metal (P / M) in the application of foreign automotive engines and development trend Powder metal has good tensile strength, fatigue resistance and dimensional control performance. This material can be cast or forged to close to the exact size of the various parts, thus saving the cost of processing. Powder metal has the characteristics of the engine connecting rod can use the so-called “fracture method” design and precisely manufactured. "Fracture method ...