| Autor: |
Hopmann, Christian, Schild, Julian, Erman Tekkaya, E.h. A., Hess, Sigrid |
| Předmět: |
|
| Zdroj: |
Joining Plastics / Fügen von Kunststoffen; 2016, Vol. 10 Issue 2, p109-115, 7p |
| Abstrakt: |
The combination process consisting of the deep drawing of metal sheets and direct back-injection in the injection moulding tool offers an outstanding possibility of manufacturing structural plastic/metal components in an economically viable process. In this respect, the combined tool technology makes it possible to use the closing movement of the injection moulding machine for the forming of the metal component. After the closing of the tool, the molten plastic injected under pressure ensures the further shaping of the metal component. A higher degree of forming than in the conventional deep drawing process can be achieved in this way. At the same time, it is possible to achieve tighter fabrication tolerances of the structural plastic/metal components since the primary forming and forming processes take place in one tool. However, the prerequisite for this combination process is the execution of a joint between the two dissimilar materials (plastic and metal). Special adhesion promoters which must withstand, in particular, the heat, friction and elongation stresses of the combined deep drawing and injection moulding process are utilised for this purpose. The deep drawing process can be portrayed very precisely with the aid of an FEM simulation in order, for example, to design deep drawing tools or to determine geometrical restrictions on the deep-drawn part. Moreover, the finite element method (FEM) simulation can be used in order to analyse the elongation stresses on the adhesion promoter during the combined process since this is difficult to detect using measuring technology. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
