Experimental Study on Effect of Laser Hardening Parameters on Carbon Steel, Non-Malleable Cast iron and X20Cr13 Materials

Authors(2) :-K.Prashanthi, B. Ramakrishna

Laser hardening is a surface heat treatment process used to enhance tribological and mechanical properties of metals which also leads to increase in service life of the components. Material removal, wear and tear, load concentration occurs mostly at rotating and reciprocating parts. Hence it is sufficient to enhance the hardness of a component at functional areas rather than the entire component. Laser hardening process is designed to change the microstructure of metals through controlled heating and cooling to get a modified surface. The constraints of traditional surface heat treatment process such as inability to treat specific area, distortion, poor degree of controllability, requirement of a quenching medium, long cycle time can be overcome by using Laser surface heat treatment and in addition to that it can be automated. With its benefits Laser surface hardening turns out to be a cost effective and energy saving process. The presented work is an investigation of the laser surface hardening via experimental results making use of a 6 axis robotic arm and a 10KW high power diode laser system as heat source with a wavelength of 980nm on leading automotive parts such as retainer, hub, and turbine blade whose materials being non-malleable cast iron, carbon steel, X20Cr13 respectively. Process parameters such as laser power from power source, scan speed were varied to understand the influence on resulting heat treated surface and efforts were made to optimize the process parameters to attain maximum hardness for the component to enhance its working life.

Authors and Affiliations

K.Prashanthi
PG Student, Department of Mechanical Engineering, Chiranjeevi Reddy Institute of Engineering & Technology, Anantapur, India
B. Ramakrishna
Assistant Professor, Department of Mechanical Engineering, Chiranjeevi Reddy Institute of Engineering & Technology, Anantapur, Andhra Pradesh, India

Laser Hardening, Cast iron, Carbon steel, X20Cr13

  1. S. Balasubramanian, V. Muthukumaran and p.Satyabalan, "A Study on the effect of process parameters of laser hardening in carbon steels." [2017]
  2. Babic M, Balic J, Milfelner M, Belic I, Kokol P, Zorman N, Panjan P, "Robot laser Hardening and the problem of Overlapping laser Beam."[2013]
  3. Fritz Klocke, Martin Schulz and Stephen Grafe, "Optimisation of the laser Hardening process by adapting the intensity distribution to generate a top-hat temperature distribution using freedom optics."[2017]
  4. NguyenHung Improved Formability of Aluminum Alloys using Laser induced Hardening of Tailored Heat Treated Blanks.
  5. MatejBabic, MatjaMilfelner, Igor Beli, Peter Problems Associated with a Robot Laser Cell used for Hardening by varying angle.
  6. AshishKumarNath,A Theoretical and experimental study on laser surface hardening by repetitive laser pulses. [2011].
  7. C. Soriano, J. Leunda, J. Lambarri, V. GarcíaNavas, C. Effect of laser surface hardening on the microstructure, hardness and residual stresses of austempered ductile iron grades.
  8. Zhaoyun Ch Microstructure and hardness investigation of 17-4PH stainless steel by laser quenching.
  9. H. Ki and S. So, "Optics and laser Technology process map for laser heat treatment of carbon steels," Opt. Laser Technol., Vol.44, No.7, pp.2106-2114, [2012].

Publication Details

Published in : Volume 4 | Issue 11 | November-December 2018
Date of Publication : 2018-12-30
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 211-218
Manuscript Number : IJSRST18401138
Publisher : Technoscience Academy

Print ISSN : 2395-6011, Online ISSN : 2395-602X

Cite This Article :

K.Prashanthi, B. Ramakrishna, " Experimental Study on Effect of Laser Hardening Parameters on Carbon Steel, Non-Malleable Cast iron and X20Cr13 Materials, International Journal of Scientific Research in Science and Technology(IJSRST), Print ISSN : 2395-6011, Online ISSN : 2395-602X, Volume 4, Issue 11, pp.211-218, November-December-2018. Available at doi : 10.32628/IJSRST18401138
Journal URL : http://ijsrst.com/IJSRST18401138

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