Mold industry
Industry Needs
The application of mold is very extensive, and most parts require mold forming. The service life of the mold depends on its ability to resist wear and mechanical damage. Once the wear is excessive or mechanical damage, it is difficult to repair the damaged shape, and only new molds can be purchased or customized. The mold manufacturing process is complex, the production cycle is long, and the processing cost is high. Therefore, repairing and reusing the failed mold undoubtedly has significant economic benefits. There are many ways to repair the mold, such as electric spark, argon arc welding repair, laser surfacing, electric brush plating, etc. Laser cladding technology has unique advantages in mold repair. Powder materials are flexible and adjustable to meet different service performance requirements. Different types of wear-resistant, high-temperature and erosion-resistant coatings can be prepared, and even gradient coatings. Materials can be cobalt-based, nickel-based, and ceramic composites, among others. Compared with traditional arc repair welding technology, laser cladding has less heat input, less thermal impact on the substrate, and less residual stress in the repair area; and high precision, which can achieve precise repair of small defects in high-end molds.
Laser Solutions
• Ultra-high-speed laser cladding
It can be used for efficient preparation of wear-resistant and high-temperature resistant coatings on the surface of axisymmetric parts of different sizes; due to low heat input, small deformation, and high precision, it has unique advantages in the surface cladding of thin-walled and small-sized parts.
• Inner wall laser cladding
It is used for the preparation of wear-resistant, high-temperature and erosion-resistant coatings on the inner surface of injection molds, as well as rapid repair of local defects on the inner surface of the mold, and laser cladding repair in narrow and restricted locations.
• Conventional laser cladding repair
It is used for precision repair and cladding of local damaged areas of automobile molds, stamping molds and edge of knife edges.
• Laser strengthening
It is used to harden the die edge to improve the service life.
Laser Application Case
• Ultra-high-speed laser cladding for glass mold punches
The glass mold punch is an essential accessory for the production of glass containers by the small-mouth blowing method. Since the frit is very sensitive to the shape of the punch, even a small dimensional deviation will affect the molding effect of the glass container, so the punch is usually required to have good thermal stability and wear resistance, so as to avoid deformation and shorten the service life. Through the two-step process of surface cleaning and ultra-high-speed laser cladding, the thickness of the cladding layer on the surface of the repaired glass mold punch can reach 0.05-1mm, and the hardness can reach above HRC65, which effectively improves the quality and production of the glass mold. efficiency.
• Auto mold laser cladding repair
Auto mold is an important basic equipment in the production process of auto parts. Due to the harsh production environment of auto parts, it is easy to cause deformation and fracture of auto molds. The automobile mold repaired by laser cladding has a small deformation amount, the hardness can reach HRC50 or more, and it is not easy to crack, which can ensure the dimensional accuracy of the mold and prolong the service life of the mold.
