ABSTRACT
The purpose of using the new structure is to protect the cantilever from the direct impact of the metal. Therefore, it is important to avoid the impact of the end part of the cantilever directly to withstand the impact of the metal, as far as possible by
1 INTRODUCTION
With the development of modern manufacturing technology as well as the understanding and research of aluminum alloys, aluminum alloy profiles have been widely used, and the market demand is huge. In the huge market demand, the proportion of the half hollow section is quite common. And in the semi-hollow section of the production, the mold is the key element. This is because the mold design of the semi-hollow profile is of a higher grade, and the strength of the mold is the key. Therefore, vigorously developing a suitable semi-hollow profile extrusion die structure has a very important significance. In this paper, through the common actual examples, a covering type porthole die structure is introduced specially for semihollow aluminum profiles to offer reference.
