With the development of the economy, the mold industry is increasingly developed. At present, the proportion of high school and low-end products produced by China’s mold industry is extremely unbalanced. It is urgent to speed up the structural adjustment and develop high-end market segments to keep pace with the international market. In this case, the laser pointer technology carries forward its unique advantages and contributes to the development of the high-end market for the mold industry.
Laser surface hardening technology has unique advantages in mold making. Laser surface treatment technology enables high-performance surface modification of low-grade materials, achieving the best combination of low-cost parts manufacturing and high-performance surface, with considerable economic and social benefits. The energy of the laser beam can be continuously adjusted, and there is no inertia. With the numerical control system, parts with complicated shapes and other parts that are difficult to handle by conventional methods can be locally hardened, and different laser pointer hardening treatment can be performed on different parts of the parts.
Because of the above characteristics of laser surface treatment, it is especially suitable for surface strengthening treatment of some parts and local parts which are difficult to achieve in conventional hardening treatment, so it has unique advantages in mold manufacturing: it can be replaced by low-grade die steel or cast iron. High-grade mold steel; replace imported mold steel with domestic mold steel; can carry out reinforcement repair (re-manufacturing engineering) on mold, reduce mold manufacturing cost.
The application of laser surface hardening technology in mold manufacturing can integrate design, material selection, mold making, inspection, repair and other technologies, greatly shorten the design and manufacturing cycle, reduce production costs, change the mold manufacturing method, and finally integrate and enhance the entire mold industry. Level. These advantages are unmatched by existing traditional technologies, both technically and economically and serviced.
The importance of increasing the melting of metal laser pointers in mold making is the main reason. With this process, the cooling channels can be placed very close to the contour of the mold. For complex parts with different wall thicknesses with ribs and mesh ribs, it is possible to cool the parts that need to be cooled close to the contour. In the past few years, the material flow characteristics during the injection molding process are uncontrollable, but now it can be Control is achievable. By cooling, in addition to shortening the production time, the deformation of the parts can be reduced, and the cross section of the cooling passage is larger than 5 mm. Therefore, the cooling passage can be placed in a position 2 to 3 mm close to the contour of the mold for optimum cooling. Also unlike cooling, temperature control is achieved by such a passage.