一种H13钢端部法兰杯形件成形工艺  

A forming process of end flange cup-shaped part for H13 steel

作　　者：张超 孙红星 王涛[1] 汪金保 刘光辉 刘华 Zhang Chao;Sun Hongxing;Wang Tao;Wang Jinbao;Liu Guanghui;Liu Hua(Zhengzhou Research Institute of Mechanical Engineering Co.,Ltd.,Zhengzhou 450001,China;School of Mechanical Engineering,Xi'an Jiaotong University,Xi'an 710049,China;Sany Heavy Machinery Co.,Ltd.,Kunshan 215300,China)

机构地区：[1]郑州机械研究所有限公司,河南郑州450001 [2]西安交通大学机械工程学院,陕西西安710049 [3]三一重机有限公司,江苏昆山215300

出　　处：《锻压技术》2024年第5期17-23,共7页Forging & Stamping Technology

基　　金：郑州机械研究所有限公司技术发展基金(502SJ2023008);郑州机械研究所有限公司创新创业专项基金(203SC2022001-16);郑州市科技重大专项资金(152PZDZX007)。

摘　　要：针对4Cr5MoSiV1(ASTM H13)钢在锻造过程中易产生表面裂纹等问题,以一种H13钢的端部法兰杯形锻件为研究对象,进行成形工艺开发。首先,通过高温压缩试验获得了H13钢的真实应力-真实应变曲线。其次,结合工艺试验结果,采用有限元模拟软件DEFORM-3D分析了锻造过程中金属的流动规律和应力分布,探明了试验件裂纹产生的原因,并提出了控制坯料温度均匀性、改进锻件形状等措施。最后,通过工艺改进实现了对某型H13钢杯形件的试制。试验结果表明:H13钢小锻件在锻造过程中极易出现裂纹,要尽量保证坯料温度的均匀性,控制锻造变形的一致性和接触摩擦条件。该研究对小型H13钢端部法兰杯形件的开发和生产具有一定的指导意义。Aiming at the problem of surface cracks easily occurring during the forging process of 4Cr5MoSiV1(ASTM H13)steel,for H13 steel end flange cup-shaped forgings,its forming process was developed.Firstly,the true stress-true strain curve of H13 steel was obtained by high temperature compression test.Secondly,combined with the process test results,the flow law and stress distribution of the metal during the forging process were analyzed by finite element simulation software DEFORM-3D.Furthermore,the causes of cracks in the test sample were found out,and the measures such as controlling the temperature uniformity of billet and improving the shape of forgings were proposed.Finally,the trial production of a certain type of H13 steel cup-shaped part was realized through the process improvement.The test results show that H13 steel small forgings is prone to crack during the forging process.It is necessary to ensure the uniformity of billet temperature,control the consistency of forging deformation and the contact friction conditions,which has certain guiding significance for the development and production of small end flange cup-shaped part of H13 steel.

关 键 词：H13钢 端部法兰杯形件 加热方式 锻造裂纹 接触摩擦条件 

分 类 号：TG314.3[金属学及工艺—金属压力加工]