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2017 | 131 | 3 | 374-378
Article title

The Cathodic Electrolytic Plasma Hardening of Steel and Cast Iron Based Automotive Camshafts

Content
Title variants
Languages of publication
EN
Abstracts
EN
Cathodic electrolytic plasma hardening is a novel thermochemical surface modification and hardening process, used to increase wear resistance and surface hardness of metallic components in a local area of interest. The heating efficiency is related with the plasma nozzle design, applied current and electrolyte. The nozzle design is also a critical factor for the hardening of complex shapes, such as gears and camshafts. In this work, lobes of camshafts, fabricated from several cast iron and steel grades were hardened by cathodic electrolytic plasma hardening in aqueous carbonate electrolyte, using a specific plasma nozzle. The camshafts were attached to CNC lathe for turning them in the horizontal axis. In order to optimise heating and to achieve the ideal flowing and wetting by the electrolyte of the lobe case, the ceramic ellipse-shaped nozzle outlet was designed. As a result of preliminary studies, external surface of lobes was heated and subsequently quenched by electrolyte. The hardness of processed surface was in the range of 50-60 HRc for the different camshafts. No distortion was observed on the surface of lobes. Hardness depth was measured to be from 0.1 mm to 5 mm for several lobes.
Keywords
EN
Publisher

Year
Volume
131
Issue
3
Pages
374-378
Physical description
Dates
published
2017-03
Contributors
author
  • Estaş Eksantrik San. ve Tic A.Ş, Sivas-Turkey
author
  • Estaş Eksantrik San. ve Tic A.Ş, Sivas-Turkey
author
  • University of Cumhuriyet, Engineering Faculty, Department of Metallurgy and Materials Eng., Sivas-Turkey
References
  • [1] S. Lampman, Introduction to Surface Hardening of Steels, Heat Treating, Vol. 4, ASM Handbook, ASM International, 1991, p. 259
  • [2] T. Mizuno, Japan. J. Appl. Phys. 44, 396 (2005), doi: 10.1143/JJAP.44.396
  • [3] L.C. Kumruoglu, MTAEC9 47, 307 (2013)
  • [4] T. Slatter, Wear 267, 797 (2009), doi: 10.1016/j.wear.2009.01.040
  • [5] J. Michalski, Wear 240, 168 (2000), doi: 10.1016/S0043-1648(00)00353-7
  • [6] F. Mahzoon, Iran. J. Mater. Sci. Eng. 10, 22 (2013)
  • [7] S. Kumar, A. Bhattacharyya, D. Kumar Mondala, K. Biswas, J. Maity, Wear 270, 413 (2011), doi: 10.1016/j.wear.2010.12.007
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv131n313kz
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