Abstract:
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For the poor formability of magnesium alloy at room temperature, an innovative incremental forming technology using an oil bath device as the heat source for overall heating was proposed. In order to examine the effectiveness and formability of oil bath heating, based on the experimental design method, the formability of AZ31B magnesium alloy sheet in forming process was experimentally studied, and the quadratic regression prediction model between formability and related process parameters was established. Then, the influences of process parameters and the interaction of two process parameters on the formability were discussed by the response surface method and the variance analysis. The results show that the AZ31B magnesium alloy sheets can be formed by the incremental forming with the oil bath heating, and the order of process factors affecting the incremental formability is forming temperature, layer feeding amount, sheet thickness and tool diameter. The verification results show that the prediction model of incremental formability by oil bath heating for AZ31B magnesium alloy is correct, the suitable forming temperature is 250 °C, and the maximum forming angle is up to 68.1885°.
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Funds:
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台州市科技计划项目(1701gy27);陕西省科技计划项目(2019GY-118);热流科学与工程教育部重点实验室项目(KLTFSE2018KF03);信息与控制工程国家级实验教学示范中心(西安理工大学)项目(2019CYB11);西安邮电大学教学改革研究项目(JGZ201816)
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AuthorIntro:
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张三(1983-),男,博士,讲师,E-mail:ucaszhangsan@163.com
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Reference:
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