Effect of Peak Current and Pulse on Time on the Coating Layer Thickness using Electrical Discharge Coating

Norhazeratul  Mohammad Zainudin; Liew Pay Jun; Ching Yee  Yap; Noraiham Mohamad; Jingsi Wang

doi:10.37934/mjcsm.6.1.1420

Authors

Norhazeratul Mohammad Zainudin Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia
Liew Pay Jun Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia
Ching Yee Yap Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia
Noraiham Mohamad https://orcid.org/0000-0001-6164-0464
Jingsi Wang Marine Engineering College, Dalian Maritime University, 1 Linghai Road, Ganjingzi District, Dalian 116026, China.

DOI:

https://doi.org/10.37934/mjcsm.6.1.1420

Keywords:

Electrical discharge coating, coating, tungsten, aluminum 6061

Abstract

The present study focused on the surface modification of aluminum 6061 by using electrical discharge coating (EDC) with powder suspension. The effects of peak current (I_p) and pulse on time (T_on) on the coating layer thickness were investigated. This study used Tungsten powder as an additive and mixed it with the kerosene oil and surfactant Span 83. The results indicated that peak current and pulse on-time significantly affected the coating layer thickness. The thinnest coating layer was observed at 3A, 150 µs, while the thickest coating layer with an average value of 17.239 µm was obtained at parameter 4A and 250 µs. In conclusion, the high value of peak current and longer pulse duration on time increased the thickness of the coating layer.