Theoretical and experimental study on laser surface hardening by repetitive laser pulses

被引：47
作者：
Nath, Ashish Kumar [1 ]
Gupta, Aniruddha [1 ]
Benny, Frederick [1 ]
机构：
[1] Indian Inst Technol, Dept Mech Engn, Kharagpur 721302, W Bengal, India
来源：
SURFACE & COATINGS TECHNOLOGY | 2012年 / 206卷 / 8-9期
关键词：
Laser; Surface hardness; Repetitive pulses; Microhardness; Microstructure; PHASE-TRANSFORMATIONS; RESIDUAL-STRESSES; TOOL STEEL; PREDICTION; AISI-4140; CARBON; AUSTENITIZATION; MICROSTRUCTURE; HOMOGENIZATION; OPTIMIZATION;
D O I：
10.1016/j.surfcoat.2011.11.019
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
An analytical solution for the temperature variation in a semi-infinite workpiece heated by repetitive laser pulses has been derived and the effects of various process parameters, viz, laser power, beam diameter, scan speed, pulse duration, repetition frequency and duty cycle on the surface transformation hardening have been investigated. The study shows that the soaking time of the top surface layer at a temperature above the phase transformation temperature, on which the homogeneity of microstructure and the depth of hardening depend, can be increased by repetitive laser pulse heating in comparison to continuous wave laser heating. The depth of hardness increases with the number of incident laser pulses at low frequencies in the range of Hz. This has been demonstrated by comparing the surface hardness characteristics of AISI 1055 steel specimens resulted by the continuous wave and repetitive laser pulse hardening processes. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：2602 / 2615
页数：14
相关论文
共 50 条
  • [1] Laser surface hardening: a review
    Babu, P. Dinesh
    Balasubramanian, K. R.
    Buvanashekaran, G.
    INTERNATIONAL JOURNAL OF SURFACE SCIENCE AND ENGINEERING, 2011, 5 (2-3) : 131 - 151
  • [2] Laser Surface Hardening of Groove Edges
    Hussain, A.
    Hamdani, A. H.
    Akhter, R.
    Aslam, M.
    6TH VACUUM AND SURFACE SCIENCES CONFERENCE OF ASIA AND AUSTRALIA (VASSCAA-6), 2013, 439
  • [3] Laser surface hardening of engine camshaft cams
    Lasota, Irena
    Protsenko, Vladimir
    Matyushkin, Alexey
    Kuznetsov, Mikhail
    Gook, Sergey
    MATERIALS TODAY-PROCEEDINGS, 2020, 30 : 478 - 482
  • [4] An efficient model for laser surface hardening of hypo-eutectoid steels
    Orazi, L.
    Fortunato, A.
    Cuccolini, G.
    Tani, G.
    APPLIED SURFACE SCIENCE, 2010, 256 (06) : 1913 - 1919
  • [5] Temperature Field of Repetitive Laser Pulse Irradiation and Its Effect on Laser Surface Hardening
    Gupta, Aniruddha
    Nath, Ashish Kumar
    MECHANICAL AND AEROSPACE ENGINEERING, PTS 1-7, 2012, 110-116 : 823 - 830
  • [6] Theoretical and experimental study of surface texturing with laser machining
    Mao, Ya-Zhou
    Yang, Jian-Xi
    Ji, Jin-Chen
    ADVANCES IN MANUFACTURING, 2021, 9 (04) : 538 - 557
  • [7] Surface of Cast Iron after Laser Hardening
    Nemecek, Stanislav
    ADVANCED MATERIALS RESEARCH III, 2013, 685 : 92 - 96
  • [8] Experimental investigation of laser shock peening using femtosecond laser pulses
    Lee, Dongkyun
    Kannatey-Asibu, Elijah, Jr.
    JOURNAL OF LASER APPLICATIONS, 2011, 23 (02)
  • [9] The effect of laser surface hardening on the surface hardness of mild steel
    Salleh, M. N. M.
    Ishak, M.
    Aiman, M. H.
    Zaifuddin, Q.
    Quazi, M. M.
    5TH INTERNATIONAL CONFERENCE ON MECHANICAL ENGINEERING RESEARCH 2019 (ICMER 2019), 2020, 788
  • [10] A comparative study of laser surface hardening of AISI 410 and 420 martensitic stainless steels by using diode laser
    Moradi, Mahmoud
    Arabi, Hossein
    Nasab, Saied Jamshidi
    Benyounis, Khaled Y.
    OPTICS AND LASER TECHNOLOGY, 2019, 111 : 347 - 357
12345