Development of Surface Treatment in Industrial Scale for Components with Metallic Luster on AZ31 Sheets

Abstract:

We have developed a new surface treatment, Mgbright, which produces a luster on AZ31 magnesium alloy surfaces. The treatment consists of a chemical process and a coating process, and the primary characteristics are that of developing a luster on AZ31 magnesium alloy and imparting a high resistance to corrosion. When Mgbright was applied, the value of surface roughness, Ra, required for developing luster was 1.5 µm. As the target Ra value of press-formed articles was set to less than 1.5 µm, mass-production press-forming was tested by means of the 100,000 times square-cup drawing method, and the target was achieved. We applied the Mgbright treatment techniques and the square-cup drawing test, and produced a laptop computer chassis.

• Periodical: Materials Science Forum (Volumes 610-613)
• Pages: 999-1002
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.610-613.999
• Online since: January 2009
• Authors: M. Ohara, Yorinobu Takigawa, Kenji Higashi
• Keywords: Magnesium Alloy, Metallic Luster, Press-Forming, Surface Roughness (SR), Surface Treatment

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