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Volume 26 Issue 4
Sep.  2013
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Article Navigation >  LASER TECHNOLOGY  > 2002 >  26(4): 262-263,289

Citation:
shu

Effect of laser hardening technical parameters on hardened depth of 40Cr steel

  • 1.

    Department of Material Engineering, Luoyang Institute. of Technology, Luoyang, 471039;

  • 2.

    704 Factory of the First Tractor Factory of China, Luoyang, 471039

  • Received Date: 2001-06-11
    Accepted Date: 2001-09-11
  • Laser hardening of 40Cr has been carried out with a 5kW CW CO2 laser,the effects of laser technical parameters on hardened depth are discussed.The results indicate that the hardened depth increases with increasing laser power or overlap of dimension of laser beam and decreasing speed and that scanning speed is more important to hardened depth than laser power.In a range of laser hardening technical parameters:laser beam diameter:3mm,laser power:1000～1200W,scanning speed:15～30mm/s,overlap of dimension of laser beam:1.0～1.5mm,a hardened depth of 40Cr no less than 0.35mm can be obtained.
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  • [1] 李恒德,肖纪美主编.材料表面与界面.北京:清华大学出版社,1989.
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    Carbucicchio M,Meazza G,Palombarin G. Applications of the Mossbauer Effect. USA:Brieach Poblishers,1983.
    [3] 李俊昌.昆明理工大学学报,1997,22(1):146～153.
    [4] 吴旭峰,张文珍,郭亨群. 光电子·激光,1998,9(4):329～332.
    [5] 刘文今,钟敏霖.中国表面工程,2001,14(1):36～39.
    [6] 刘江龙,邹至荣编著.高能束热处理,北京:机械工业出版社,1997.
    [7] 马奎,杨蕴林,王长青 et al.洛阳工学院学报,2001,4:11～13.
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通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Effect of laser hardening technical parameters on hardened depth of 40Cr steel

  • 1. Department of Material Engineering, Luoyang Institute. of Technology, Luoyang, 471039;
  • 2. 704 Factory of the First Tractor Factory of China, Luoyang, 471039
  • Received Date: 2001-06-11
  • Accepted Date: 2001-09-11
  • Available Online: 2002-07-25

Abstract: Laser hardening of 40Cr has been carried out with a 5kW CW CO2 laser,the effects of laser technical parameters on hardened depth are discussed.The results indicate that the hardened depth increases with increasing laser power or overlap of dimension of laser beam and decreasing speed and that scanning speed is more important to hardened depth than laser power.In a range of laser hardening technical parameters:laser beam diameter:3mm,laser power:1000～1200W,scanning speed:15～30mm/s,overlap of dimension of laser beam:1.0～1.5mm,a hardened depth of 40Cr no less than 0.35mm can be obtained.

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