Research on 40Cr steel for high-speed spinde laser transformation hardening technics

被引：4

作者：

He, Qiang ^{[1
]}

Su, Huali ^{[2
]}

Liu, Hongzhao ^{[1
]}

Ye, Jun ^{[3
]}

机构：

[1] Department of Mechanical Engineering, Xi'an University of Technology, Xi'an

[2] Department of Mechanical Engineering, Institute of Anyang, Anyang

[3] Luoyang Bearing Research Institute, Luoyang

来源：

Zhongguo Jiguang/Chinese Journal of Lasers | 2009年 / 36卷 / 08期

关键词：

Hardness; Laser technigue; Laser transformation hardening; Metallographic analysis; Technics;

D O I：

10.3788/CJL20093608.2192

中图分类号：

学科分类号：

摘要：

40Cr steel is a common quenched axis steel with high, tough, and plastic cooperation. However, quenched steel for high speed spindle rigidity and resistance is not satisfactory. It is easy wear at axle journals and affacts the precision. 40Cr steel with normalized one has been hardened by laser. To find a good technics for high-speed spindle by laser surface hardening, to improve 40Cr steel's hardness and wear resistance.Analyse kinds of samples which are harden by different technics. Diameter of facula 7 mm, laser power 1600 W, speed of scan 15 mm/s is the best parameters. Then microstructures analysis, rigidity measurement are carried out. The result: the sample with the technics is the best for high-speed spind machining and milling. The hardness of hypo-surface layer's hardness is 2.04 times of the conventional heat treatment, and it is wearable.

引用

页码：2192 / 2196

页数：4

共 16 条

[1]

Zhang W., Liu Z., Study on microstructure of in-situ synthesis of TiC-Cr7C3-Ti-Ni metal-ceramics composite coating, Chinese J. Lasers, 35, 7, pp. 1091-1094, (2008)

[2]

Kaul P., Ganesh P., Albert S.K., Et al., Laser cladding of austenitic stainless steel with nickel base hardfacing alloy, Surf. Eng., 19, 4, pp. 268-270, (2003)

[3]

Li G., Qiu L., Qiu X., Study on microstructure and hardness of laser melting of 40Cr steel, Heat Treatment Technology and Equipment, 29, 3, pp. 25-28, (2008)

[4]

Wang X., Zhang M., Zou Z., Et al., Investigation on the microstructure and properties of laser clad TiCp/NiCrBSi alloys composite coating, Chinese J. Lasers, 30, 6, pp. 562-566, (2003)

[5]

Chao M., Liang E., Zhao D., Effect of TiO2 on the laser cladding layers of Ni-based alloy on 45# steel, Chinese J. Lasers, 30, 10, pp. 947-952, (2003)

[6]

Huang K., Lin X., Chen C., Et al., Microstructure and wear behaviour of laser-clad Zr-Cu-Ni-Al/TiC composites on AZ91D magnesium alloy, Chinese J. Lasers, 34, 4, pp. 549-554, (2007)

[7]

Lee S.H., Yang Y.S., Sensitivity analysis of processing parameters by direct differentiation method for laser surface hardening, Materials and Manufacturing Processes, 16, 3, pp. 353-374, (2001)

[8]

Luo G., Wu G., Huang Z., Et al., Microstructures of Ni-Cr-Ti-Al laser claddings on K418 superalloy, Chinese J. Lasers, 34, 2, pp. 283-287, (2007)

[9]

Lampman S., Introduction to surface hardening of steels, ASM Handbook, 4, pp. 259-267, (1997)

[10]

Reed R.C., Shen Z., Robinson J.M., Et al., Laser transformation hardeningof steel: Beammode, beam size, and composition, Mater. Sci. Technol., 15, pp. 109-118, (1999)

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