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Abstract：
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For high-stiffener integral panel of 5A06 aluminum alloy, the influence laws of structural dimensions for high-stiffener integral panel part and the process parameters during the thermal forming process, such as deformation temperature, holding time and holding pressure etc., on the dimension accuracy of thermal formed parts were studied. During the thermal forming of high-stiffener integral panel, with the increasing of the ratio of stiffener height to skin thickness, the surface indentation of skin increases, and the shrinkage of end face decreases. Then, with the increasing of the holding pressure and holding time, the surface indentation of skin decreases, the shrinkage of end face increases, the inclination angle of side face decreases, and the springback decreases. However, when the width of horizontal stiffener decreases, the surface indentation decreases, and the shrinkage of end face increases. Furthermore, when the width of horizontal stiffener is not bigger than 2 mm, the high stiffener wrinkles, and the deformation temperature has no significant effect on the surface indentation and the shrinkage of end face. Finally, according to experimental research on the thermal forming of high-stiffener integral panel for 5A06 aluminum alloy, the best process parameters are the holding temperature of 350-400 ℃, the holding time of 40 min or more and the holding pressure of 6 MPa.
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Funds：
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国家自然科学基金青年科学基金项目（NSFC51805256）
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AuthorIntro：
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秦中环（1989-），男，硕士，高级工程师，E-mail：qq344041159@126.com
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Reference：
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