钻头用含硫XGML40Cr钢的开发及其切削性能的改善
Special Steel(2017)
Abstract
邢钢开发的0.020%~0.060%S钻头用XGML40Cr钢(/%:0.38~0.44C,0.17 ~0.30Si,0.60~0.80Mn,≤0.035P,0.020~0.060S,0.90~ 1.10Cr,≤0.01A1)的生产流程为50 t BOF-LF-285 mm×320 mm坯连铸-热轧成Φ12 mm线材.对0.027%S的XGML40Cr和0.006%S的ML40Cr盘条试样进行进刀量0.015 mm/r,切削深度0.1mm,切削速度12~30 m/min的切削试验.试验结果表明,XGML40Cr断屑性能优于ML40Cr,其切削长度为ML40Cr钢1/5~3/5,XGML40Cr切削过程产生更低的切削热,蓝色切屑比例为10%,ML40Cr钢为70%,XGML40Cr切屑变形系数低于ML40Cr,XGML40Cr表面粗糙度(Ra 10.2 μm)优于ML40Cr(Ra 22.4 μm).含硫XGML40Cr钢的力学性能与ML40Cr相当,870℃淬火和500℃回火后的力学性能为抗拉强度1 082 MPa,断面收缩率70%,HRC硬度值40,冲击功AKV2 72 J.
MoreAI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined