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Arc Spray Forming of Stainless Steel Mould

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Abstract:

In order to improve the lifespan and performance of the forming mould with low melting point, arc spray forming of stainless steel mould has been advanced. The technical process of spray mould has been investigated, and the correlations among the spray parameters, in-flight characteristics of molten particle and the forming quality have been analyzed in detail. Meantime, the influence of the preheating temperature of the spray mould and the spray angle on the morphology of the splashing particles has been also investigated. The research results indicate that the atomization pressure greatly influences the velocity and granularity of the in-flight particles. The working current greatly influences the particle temperature, and the spray distance influences the temperature and velocity to some extent. A compact spray layer, with a low porosity, little oxide content, and high microhardness, can be obtained by increasing the atomization pressure. The research has a great significance to optimize and control the forming quality of rapid tooling by arc spraying.

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Periodical:

Key Engineering Materials (Volumes 291-292)

Pages:

603-608

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.291-292.603

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Online since:

August 2005

Authors:

Zhi Yu Zhao, Jian Cheng Fang, H. Wang, H.Y. Li

Keywords:

Arc Spray Forming, Forming Quality, Spray Layer, Stainless Steel Mould

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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