CAJ | 학술논문

研究了国产轿车五气门发动机连杆毛坯锻件与德国毛坯锻件的化学成分、金相组织及力学性能。结果表明，非调质钢连杆的硬度分布均匀，金相组织、力学性能、切削性能均达到德国同类产品技术要求。用非调质钢代替40Cr钢制造轿车五气门发动机连杆是可行的，既保证了产品质量又简化了生产工艺流程，具有良好的经济效益。
연구료국산교차오기문발동궤련간모배단건여덕국모배단건적화학성분、금상조직급역학성능。결과표명，비조질강련간적경도분포균균，금상조직、역학성능、절삭성능균체도덕국동류산품기술요구。용비조질강대체40Cr강제조교차오기문발동궤련간시가행적，기보증료산품질량우간화료생산공예류정，구유량호적경제효익。
The chemical composition，microstructure and mechanical properties of connecting rod blank made of microalloy steel are analyzed.The result shows that the hardness distribution is even，the microstructure，mechanical properties and machinability meet the technology requirement of the same products maed in Germany.It is feasible to use the microalloy steel to make connecting rod instead of 40Cr steel.This can ensure the product quality，simplify the process and make a better profit.