A Cutting Type Porthole Die Structure for Semi-hollow Al-Profiles

摘要

A new cutting type structure was presented. The split way for the new structure and the choice of relevant parameters were described, the lap jointing type to form the male die and female die a complete tongue, the design of portholes and the welding chamber and the bearing were included. And the results of use were analyzed and compared with the new structure and the traditional solid die structure and the cover type hollow die structure. It were shown that the new structure has obvious advantages, it can change the structure of tongue and reduce the ratio of tongue. This is a kind of die structure which is worth promoting. It expanded the range of choices as a die structure for the semi-hollow aluminum profiles and has very strong pertinence. The aim is to extend the experience and to provide reliable and valid reference data to the designers.