GH4706热加工图自动绘制方法研究  

Research on Automatic Drawing Method of GH4706 Hot Working Map

作　　者：肖石 张森峰 杨伟 景春红 王照辉 白应生 XIAO Shi;ZHANG Senfeng;YANG Wei;JING Chunhong;WANG Zhaohui;BAI Yingsheng

机构地区：[1]中国第二重型机械集团德阳万航模锻有限责任公司,四川德阳618000

出　　处：《大型铸锻件》2024年第4期48-54,共7页Heavy Casting and Forging

基　　金：国家重点研发计划(2022YFB3705103)。

摘　　要：根据热压缩试验数据,总结了热加工图的绘制原理,计算了应变速率敏感因子m,在这个基础上绘制了功率耗散图与热加工图。研究结果表明,GH4706合金的最佳锻造温度约为1000℃,且在真应变速率为0.14 s^(-1)至0.36 s^(-1)的范围内表现最佳。为优化锻造效果,建议在锻造前适当提升加热温度,并在初始压制阶段加快压制速度。当应变值达到0.4时,可适当减缓压制速度,以改善材料性能。此外,还整理了绘制热加工图的方法,并将其编写成python类,极大地方便了工程人员绘制热加工图与制定工艺参数。Based on the data from hot compression tests,the principles of preparing hot working drawings were summarized.The strain rate sensitivity factor m was calculated,and on this basis,the power dissipation drawing and hot working drawing were prepared.The research results show that the optimal forging temperature range for GH4706 alloy is approximately 1000°C,with its best performance within a true strain rate range of 0.14 s^(-1)to 0.36 s^(-1).To optimize the forging effects,it is recommended to appropriately increase the heating temperature before forging and to accelerate the pressing speed during the initial pressing phase.When the strain value reaches about 0.4,the pressing speed can be moderately reduced to improve the material properties.Additionally,this study organized the methods for preparing hot working drawings and compiled them into a Python class,greatly facilitating the engineers to prepare the hot working drawings and formulate technological parameters.

关 键 词：GH4706高温合金 热加工图 自动化计算 工艺参数的制定 

分 类 号：TG142.1[一般工业技术—材料科学与工程]