摘要
采用非真空冶炼制备了不同碲含量的Cr12MoV冷作模具钢,并进行调质使硬度均为60 HRC,研究了碲对试验钢中夹杂物的影响,通过铣削、钻削试验及表面粗糙度测试量化评估了碲对加工性能的影响。结果表明:通过碲改质,试验钢中可形成(Cr,Mn)Te包裹MnS的MnS-(Cr,Mn)Te复合夹杂物和(Cr,Mn)Te夹杂物,随着碲含量增加,夹杂物数量增多,尺寸增大,形状趋向球形;随着碲含量增加,试验钢的铣削力、钻削力和铣削后的表面粗糙度减小,加工性能提高,表面加工质量改善。
Cr12MoV cold work die steel with different tellurium content was prepared by non-vacuum smelting,and the hardness was modulated to 60 HRC.The tellurium modification rule on inclusions in test steel was studied.The effect of tellurium on the processing performance was quantitatively evaluated by milling and drilling tests and surface roughness measurement.The results show that by tellurium modification,MnS-(Cr,Mn)Te complex inclusions of MnS coated with(Cr,Mn)Te and(Cr,Mn)Te inclusion could be formed in the test steel.With the increase of tellurium content,the number and size of inclusions increased and their shape tended to be spherical.With the increase of tellurium content,the milling force,drilling force and surface roughness after milling of the test steel decreased,indicating that the processing performance and surface machining quality were improved.
作者
刘松涛
伦明睿
陈炜
周茂华
唐佳丽
付建勋
LIU Songtao;LUN Mingrui;CHEN Wei;ZHOU Maohua;TANG Jiali;FU Jianxun(State Key Laboratory of Advanced Special Steel,Center for Advanced Solidification Technology,School of Materials Science and Engineering,Shanghai University,Shanghai 200444,China;Pangang Group Sichuan Great Wall Special Steel Co.,Ltd.,Jiangyou 621000,China)
出处
《机械工程材料》
北大核心
2025年第1期38-43,共6页
Materials For Mechanical Engineering
基金
国家自然科学基金资助项目(52074179)。
关键词
冷作模具钢
碲改质
切削力
表面粗糙度
cold work die steel
tellurium modification
cutting force
surface roughness
作者简介
刘松涛(1999-),男,河南周口人,硕士研究生;通信作者:付建勋,教授。
