船用曲轴钢S34MnV液芯锻造研究  

Research on liquid-core forging of marine crankshaft steel S34MnV

作　　者：吴永强 付文 王开坤[1] 杨艳[2] WU Yongqiang;FU Wen;WANG Kaikun;YANG Yan(School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;State Key Laboratory of Comprehensive Utilization of Nickel and Cobalt Resources, Jinchuan Group Co., Ltd., Jinchang 737100, China)

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]金川集团股份有限公司镍钴资源综合利用国家重点实验室,甘肃金昌737100

出　　处：《哈尔滨工程大学学报》2021年第2期301-307,共7页Journal of Harbin Engineering University

基　　金：国家重点研发专项(2017YFB0701803);镍钴资源综合利用国家重点实验室开放基金课题(301170502).

摘　　要：为解决传统锻压工艺存在的不足,本文提出了一种液芯锻造成形的新工艺。以船用曲轴钢S34MnV为研究对象,在DEFORM-3D中进行了2道次液芯锻造工艺压下过程模拟,得到了钢锭不同截面的特殊点受力状态及不同压下率、坯壳厚度、压下速度对液芯锻造S34MnV金属流动变形规律的影响。同时在实验室条件下制备出多层梯度物理模型,验证DEFORM-3D软件中有限元模拟预测的正确性。To overcome the shortcomings associated with the traditional forging process,in this paper,we propose a new liquid-core forging technology.Considering marine crankshaft steel(S34MnV)as the research object,we simulated the reduction of the two-pass liquid-core forging process on DEFORM-3D software.We obtained special states of stress for different sections of steel ingots and the effect of different reduction ratios,shell thicknesses,and reduction speeds on the flow deformation law of the forging metal S34MnV under liquid-core forging.In addition,we constructed a multi-layer gradient physical model under laboratory conditions to verify the accuracy of the finite element simulation and predictions made using the DEFORM-3D software.

关 键 词：液芯锻造 DEFORM-3D 2道次 压下率 坯壳厚度 压下速度 多层梯度 变形规律 

分 类 号：TG316[金属学及工艺—金属压力加工]