Optimizing the Process of Arc-Spraying To Improve Wear Resistance of Crank Shaft

Ali Hussein, Asmaa; F. Hauier, Abdullah

doi:10.30684/etj.29.14.6

	Optimizing the Process of Arc-Spraying To Improve Wear Resistance of Crank Shaft
Engineering and Technology Journal
Article 1, Volume 29, Issue 14, 2011, Pages 2900-2911 PDF (442.83 K)
DOI: 10.30684/etj.29.14.6
Authors
Asmaa Ali Hussein; Abdullah F. Hauier
Abstract
This research studies the factors effecting on coating produced by electrical arcspraying. The studied variables are applied voltage, wire feed rate and spraying distance.In this investigation used wires made from martinsitic stainless steel to coat the bearing of spherical graphite cast iron. range. The mechanical properties of coating such as hardness are used.Limited optimal environments by electric arc spraying to improve wear rate resistance of crank shaft.In the first stage all samples and metallizing wires were prepared and chemically analyzed. The coating operation was carried in the second stage. Each group of samples was coated in different way with variable spraying factor being considered. In the third stage all samples were tested using pin on ring wear testing machine. The investigation performed in this work showed that the process variable have a considerable effect on coating quality ,and spraying distance range emerges as the most significant process variables. The final results showed that the best voltage in this application is between 28-30V, wire feed rate is 100 mm/s, and best spraying distance is about 12-15cm to get a good coating with maximum wear resistance.
Keywords
Arc; spraying; Crankshaft repair; Wear Resistance; Spray coating

Statistics Article View: 324 PDF Download: 214