Effect of Electro-spark Coating on Wear Loss of Rotavator Blades


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Authors

  • Ch. Ramulu Reserch Scholar, Department of Farm Machinery and Power Engineering, IGKVV, Raipur (C.G)
  • A. K. Dave Professor, Department of Farm Machinery and Power Engineering, IGKVV, Raipur (C.G)
  • I. Srinivas Principal Scientist, ICAR-Central Research Institute for Dryland Agriculture, Hyderabad, Telangana.
  • Ashish S. Dhimate Scientist, ICAR-Central Research Institute for Dryland Agriculture, Hyderabad, Telangana

Keywords:

Rotavator blade, electro-spark coating, hardness, wear loss

Abstract

Rotavator has been increasingly used in agricultural fields. Under abrasive conditions for ground engaging tools, rotavator blades require frequent replacement resulting to increasing machine downtime and maintenance cost. Electric spark coating (ESC) technique was evaluated on two different commercially available blades with tungsten carbide, Stellite-21 and chromium carbide coating materials to improve their life. Coating materials were applied with three different thicknesses on the blades.Wear loss of the second blade with tungsten carbide 4th mode treatment was about 0.80 % per hour less than the other treatments for both blades. Hardness (58.33 HRA) of the second blade with chromium carbide 4th mode treatment was highest among all treatments and blades. The build-up height with chromium carbide 6th mode treatment was 160.8 μm.

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Submitted

2019-01-23

Published

2019-01-23

Issue

Vol. 55 No. 3 (2018)

Section

Articles

License

How to Cite

Ramulu, C., Dave, A. K., Srinivas, I., & Dhimate, A. S. (2019). Effect of Electro-spark Coating on Wear Loss of Rotavator Blades. Journal of Agricultural Engineering, 55(3). https://epubs.icar.org.in/index.php/JAE/article/view/86404