Aluminum profiles are widely used because of their light weight, high specific strength, good machinability and formability, and corrosion resistance. Its use covers more and more fields, the variety and specifications of aluminum profiles are also increasing. In extrusion production of aluminum profiles, die is the key element, and the split die in the die is the common and common structure. However, some large and complex profiles, especially multi-cavity profiles, will bring difficulties to mold design and processing. The more difficult the processing is, the easier it is to reduce the manufacturing accuracy of the mold, and even some parts can not be processed, which will affect the metal supply and forming in the extrusion process, resulting in the uneven flow rate of the metal on each part, will lead to the quality of the profile does not meet the requirements or quality decline, will occur local wear or rupture, which will lead to mold damage and early scrap. Therefore, inlay structure can be used to solve these problems in die design and manufacture.
Structure design principle of aluminum profile mosaic structure
① It is convenient for processing and manufacturing, greatly reducing the electrical processing workload in mold processing and improving the accuracy of mold processing. For some multi-cavity profiles, higher parts require Mosaic structures, which can be machined to reduce the use of electrical machining methods and improve the accuracy of die parts. The Mosaic structure shall be suitable for the requirements of the heat treatment process to avoid stress concentration.
Easy to maintain, replace and adjust. For certain key parts, especially small mold cores, a mosaic structure can be used, which can be replaced in time after the core is broken or worn, or even the same upper mold can be used to achieve product serialization.
③ Meeting the requirements of extrusion process is conducive to extending the service life of the die. The inlay structure used should meet the requirements of extrusion process, and meet the requirements of strength and stiffness of die parts at the same time, should be conducive to reducing extrusion pressure.