基于提质降耗的某船机曲轴锻件工艺优化  

Process Optimization of Crankshaft Forgings for a Ship Engine Based on Quality Improvement and Consumption Reduction

作　　者：匡利华 杜绍贵 何正海 KUANG Lihua;DU Shaogui;HE Zhenghai

机构地区：[1]中车资阳机车有限公司,四川资阳641300

出　　处：《大型铸锻件》2024年第4期65-68,共4页Heavy Casting and Forging

摘　　要：为提升曲轴特别是半成品曲轴的市场竞争力,针对某型船机曲轴锻造前制坯料损大、曲柄臂外形重合度不高和曲轴锻件材料利用率偏低工艺问题以及曲轴锻件曲柄臂顶圆夹层、输出端法兰塌角质量问题,优化了曲柄臂、输出端法兰外形、锻造前坯料结构以及模具型腔设计。曲轴锻件实际生产结果表明优化效果明显,质量问题得到有效解决,且曲轴锻件原材料每支减重330 kg,材料利用率提高7.1%。In order to improve the market competitiveness of crankshafts,especially semi-finished crankshafts,the shapes of crank arm and output end flange,the blank structure before forging and the die cavity design are optimized to solve the problems of large blank loss before forging,low contact ratio of crank arm shape,low material utilization rate of crankshaft forgings,and the quality problems of crank arm top circle interlayer and insufficient corner filling of output end flange of crankshaft forgings.The actual production results of crankshaft forgings show that the optimization effect is obvious,the quality problems are effectively solved,the weight of each crankshaft forging raw material is reduced by 330kg,and the material utilization rate is increased by 7.1%.

关 键 词：提质降耗 曲轴锻件 材料利用率 夹层 塌角 

分 类 号：TG316[金属学及工艺—金属压力加工]