Application of Micro-Arc Oxidation Technology in Die Magnesium Alloy Wheels in Mass Production

Abstract:

Micro-arc oxidation technology is a new type of metal surface treatment technology. With a large area of die casting magnesium alloy wheel surface treatment as an example, the practical production and application of micro-arc oxidation technology of magnesium alloy is discussed, Surface treatment technology production line is designed, The main equipment and process piping required for production line is introduced in detail. By the study of current and voltage which have a large effect on the craft of micro-arc to magnesium alloy, in the end a kind of electric parameters of micro-arc oxidation about magnesium alloy was optimized and film quality for testing. The micro-arc oxidation technology has been proved practically an appropriate technology for Mg alloy wheel hub and reference for the mass production used for a large area of magnesium alloy surface treatment technology and equipment design.

• Periodical: Key Engineering Materials (Volume 667)
• Pages: 15-21
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.667.15
• Online since: October 2015
• Authors: Zhan Ling Zhang, Yan Qin Zhang, Li Zhang, Ai Qiong Pan, Jun Liu
• Keywords: Die Mg Alloys, Micro-Arc Oxidation, Surface Treatment, Wheel

References

[1] Kojima Y. Platform Science and Technology for Advanced Magnesium Alloy. Material Science Forum. Vol. 350 ( 2000), pp.3-18.

[2] EAghion, B Bronfin. Magnesium Alloys Development towards the 21'st Century. Material Science Forum. Vol. 351 ( 2000), pp.19-28.

DOI: 10.4028/www.scientific.net/msf.350-351.19

[3] M.Y. Yao, B.X. Zhou, J.A. Wang: Influence of Voltage on the Microstructure and Corrosion resistance of Micro-arc oxidation coating of magnesium alloys. Materials Protection. ，Vol. 38 (2005) No. 6, pp.7-10.

[4] Voevodin A A, Yerokhin A L, Lyubimov V V: Charac-terization of Wear Protective AI-Si-O Coatings Formed on AI-based Alloys by Micro-arc Discharge Treatment. Surface and Coatings Technology, Vol. 86 (1996) , pp.516-512.

DOI: 10.1016/s0257-8972(96)03069-1

[5] J.M. Hao, H. Chen: Corrosion Resistance of Magnesium Alloy Micro –arc Oxidization Ceramic Coating. The Chinese Journal of Nonferrous Metals. Vol. 13 (2003) No. 4, pp.988-991.

[6] C.X. Li, J.Y. Zhao: Study of Micro-arc Oxidation Process of Magnesium Alloy Based on Large Area. Materials Protection. Vol. 39 (2006) No. 10, pp.67-70.

[7] Y. K. Shin: Formation of Titania Photoeatalyst by Microarc Oxidation of Tiand Ti-6AI-4V Alloys. Electrochemstry Communications . (2006).

[8] Delphine Veys-Renaux, Emmanuel Rocca, Julien Martin, Gérard Henrion: Initial Stages of AZ91 Mg Alloy Micro-arc Anodizing: Growth Mechanisms and Effect on the Corrosion Resistance. Electrochimica Acta . (2013).

DOI: 10.1016/j.electacta.2013.08.023

[9] L. Ying, J.H. Cheng, Z.M. Cao: Wear-resistant Coatings Formed on Zircaloy-2 by Plasma Electrolytic Oxidation in Sodium Aluminate Electrolytes. Electrochimica Acta . (2014).

DOI: 10.1016/j.electacta.2013.11.079