《论文翻译-热液压机的镁金属薄板拉深.docVIP

热液压机的镁金属薄板拉深 格里特 库兹金属成形和金属成型机械研究所，汉诺威大学，，德国，汉诺威，威尔芬花园1A，30167关键词：镁，钣金，拉深，液压拉深 Abstract In order to reduce fuel consumption efforts have been made to decrease the weight of automobile constructions by increasing the use of lightweight materials. In this field of application magnesium alloys are important because of their low density. A promising alternative to large surfaced and thin die casting parts has been found in construction parts that are manufactured by sheet metal forming of magnesium. Magnesium alloys show a limited formability at room temperature. A considerable improvement of formability can be achieved by heating the material. Formability increases above a temperature of approximately T = 225 °C. This paper will give an overview about the heated hydro-mechanical deep drawing process of magnesium sheet metal. It will further show how the process parameters temperature and fluid pressure influence the deep drawing process. The main goal of these investigations was a decrease of the forming temperature by use of the hydro mechanical deep drawing process. 摘要为了减少燃油消耗，现在已作出不少努力，通过增加使用轻质材料以减轻汽车结构的重量。在这个应用领域的镁合金，其中重要的原因是因为其密度低。一个很有希望在结构件方面替代大而薄的压铸件的替代品，已找到了， 那就是通过板材成形制造而成镁金属零件。镁合金在室温下表现出有限的成形性。但通过加热之后，其成形性能得到相当大的改善。大约温度在 225 ° C以上时，镁的成形性能就会增加。本文将提供一份关于热液压机的镁金属板材拉深工艺流程的概述。它将进一步显示工艺温度和流体压力是如何影响深拉伸工艺。这些调查的主要目标是为了通过使用液压机的深拉工艺来降低镁的成型温度。 Introduction An important goal of the automotive industry is to reduce the fuel consumption of cars. The greatest potential for savings offered by magnesium alloys can be achieved with components such as sheet metal body shell panels that are exposed to bending stresses [1]. Currently, the weight of the car body is reduced by using high-strength steel with a decreased sheet thickness or conventional At present magnesium alloys are mainly processed by die casting in the automobile industry. The die casting technology allows the manufacture of parts with a complex geometry [2]. The mechanical properties of these pa