Aluminum extrusion mold manufacturing is one of the key factors that determine the quality and service life. Since aluminum extrusion mold has a series of characteristics, so the aluminum mold tooling made a number of specific requirements:
(1) Since the aluminum extrusion tooling working conditions are very harsh, during the extrusion process need to withstand the role of high temperature, high friction and, therefore, require the use of high-strength heat-resistant alloy, and these steel smelting, casting, forging, heat treatment process, electrical, machining and surface treatment are very complicated, which gives mold brought a series of difficulties.
(2) In order to improve the working life of the mold surface and ensure product quality, work with the requirements of roughness of the cavity reaches 0.8-0.4μm, mold plane roughness of 1.6μm or less, therefore, need to be taken at the time of molding special the polishing process and polishing equipment.
(3) Since the extruded products to high, refined, sharp direction, and some sections of pipe wall thickness requirements down to about 0.5mm, extruded products required to achieve tolerance ± 0.05mm, to squeeze this ultra-precision product requirements mold manufacturing precision 0.01mm, collapse of traditional mining process simply can not produce enough of it, therefore, requires the use of new technology and updated equipment.
(4) aluminum extrusion products variety, small batch, the number of frequent retooling, strong adaptability to the requirements of the mold, therefore, requires efficient production tooling to shorten the molding cycle, mold can quickly change program can accurately according to drawings of qualified mold, and to reduce the workload of the repair mode to a minimum.
(5) aluminum sections is very complex, especially President Chain Store precision thin-wall hollow porous hollow aluminum and aluminum siding, require special extrusion die structure, often on a mold shaped simultaneously opening a plurality of bores , a sharp change in thickness of each section, relevant dimensions complex, circular corner lot, this mold processing and heat treatment to bring a lot of trouble.
(6) Since the aluminum alloy extrusion products increasingly wide range of applications, the specification range is very wide, so there is light to several kilograms external dimensions of 100mm × 25mm small mold, also weighing 2000kg or more external dimensions of 1800mm × 450mm large mold. There are a few kilograms to light form factor for small extrusion axis 65mmx800mm, there are more dimensions to weighing 100t 2500mmx2600mm large extruder barrel. Huge difference specifications and quality of the mold, requiring a completely different manufacturing methods and procedures, use completely different processing equipment.
Category (7) of the extrusion tooling range of complex, high precision assembly, in addition to require special processing methods and the use of special equipment outside, still need special tooling fixtures and tool and special heat treatment method.
(8) In order to improve the quality and service life of tooling, in addition to choose the right materials and to optimize the design outside, still need to use the best technology and surface hardening heat treatment process to obtain moderate mold hardness and high surface quality, this is particularly important for the shape of the mold particularly complex and difficult extruded products for the specific structure.
Aluminum extrusion mold tooling
    Thus, the extrusion die processing technology with a small general machinery manufacturing process, but a great difficulty involves a wide range of special technologies. In order to produce high quality and life of the mold, in addition to the selection and preparation of high-quality mold materials, but still need to develop a reasonable cold working process, electrical processing, heat treatment and surface treatment processes.