Transactions of Materials and Heat Treatment

Title：Research on technique of heat-incremental forming for Al-Mg alloy

Authors： Zhang Guoxin

Unit： Wuxi College of Science and Technology

KeyWords： Al-Mg alloy heat-incremental forming electric heating lubrication

ClassificationCode：

year,vol(issue):pagenumber：2015,40(10):34-38

Abstract：

In order to realize the single-point incremental forming of Al-Mg alloy sheet, a heat-incremental forming technique based on the forming characteristics of Al-Mg alloy was proposed. The incremental forming was conducted by a sheet-metal NC flexible fast-forming machine, and then the technique study and the theoretical analysis were carried out on the thermal incremental forming technology of alloy 7075，which was heated by electric heating plate equipment and lubricated by graphite and MoS2 composite lubricating agent. Further, the results show that the heat-incremental forming of alloy 7075 sheet with 1.5 mm thickness can be realized under the conditions of the heating temperature 200-250 ℃, the feed rate 1000-2000 mm·min-1, the spindle speed 3000-4000 r·min-1, the large step feed forming at sharp zone and small step feed forming at smooth zone, and the tool size is selected to ensure the full plastic forming of the material.

Funds：

江苏省“青蓝工程”学术带头人人才基金（苏教师〔2014〕1号）

张国新(1971-)，男，硕士，教授，高级工程师

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