Transactions of Materials and Heat Treatment

Title：Study on isothermal extrusion and bulging technology of magnesium alloy wheel

Authors： YIN Yin-yin1 2 YANG Yong-shun1 2 GUO Jun-qing1 2(1.College of Material Science and Engineering Henan University of Science and Technology Luoyang 471003 China 2.Henan Key Laboratory of Advance Non-ferrous-material Luoyang 471003 China)

Unit：

KeyWords： magnesium alloy wheel isothermal extrusion bulging mechanical properties

ClassificationCode：TG376

year,vol(issue):pagenumber：2010,35(1):56-59

Abstract：

In view of the complex structure of magnesium alloy wheel and its difficulties of plastic forming,isothermal extrusion and bulging technology were put forward to form magnesium alloy wheel of AZ80.The process route was scheduled and the mold was designed.Processing parameters were obtained as follows: extrusion temperature was preheated at 350-400℃,average velocity of pressure head was 0.2mm·s-1,bulging temperature was at 200-250℃.Tensile strength,yield strength and elongation of the rim were 338.4MPa,190MPa and 14.1%.Mechanical properties is significantly better than as-cast structure,This technology has small extrusion force,simple process,high productivity,and will be a development direction for plastic forming of magnesium alloy wheel.

Funds：

河南省重点科技攻关项目(072102230007)

Reference：

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