Glass mold punches are prone to material loss on the punch surface, forming pits and pits under extreme working temperatures, fast feeding and stripping operations, and excessive mold gap conditions, which eventually lead to the punch being unable to be used normally. At present, many mold manufacturers on the market are highly dependent on imported punches to meet production needs, but with the booming domestic market and the sharp increase in demand, the supply capacity of foreign punches is gradually stretched. Therefore, it is imperative to explore and apply new processes to replace traditional plasma or spraying technologies.

Advantages of laser cladding process:
The laser cladding process can significantly improve the hardness, strength, wear resistance and corrosion resistance of the punch, ensuring that the punch can still show excellent performance in harsh working environments. By optimizing the production process and technological innovation, the high performance requirements of the punch can be achieved at a lower cost, thereby effectively replacing imported punches, which not only relieves the pressure on the supply chain, but also further enhances the market competitiveness of the domestic mold manufacturing industry.
1. Excellent wear and corrosion resistance: With its precise control capability, laser cladding technology can accurately construct a layer of super-hard ceramic coating and a highly dense corrosion-resistant barrier on the surface of the punch, which greatly enhances the wear and corrosion resistance of the punch under extreme working conditions, ensures continuous and efficient operation, and significantly extends the service life of the punch.
2. Precise repair and performance optimization: This technology has completely revolutionized the field of punch surface strengthening and repair, and achieved fine repair of surface defects; at the same time, surface strengthening or modification can be performed directly on the punch surface, which greatly shortens the manufacturing cycle, reduces costs, and improves overall production efficiency.
3. Excellent material bonding performance: The laser cladding layer forms a strong metallurgical bond with the substrate, and the dilution rate of the cladding layer is as low as 5%-8%, which effectively prevents the common peeling problem in traditional coating processes and ensures the long-term stability and reliability of the cladding layer.
4. Wide range of material adaptability: The laser cladding process is compatible with a variety of materials, and the most suitable cladding material can be selected according to different production needs and punch performance requirements.
5. Low heat input and small deformation: The heat input of laser cladding is relatively low, and the heat-affected zone is small, which is conducive to maintaining the accuracy and performance of the mold punch.
6. High production efficiency: Laser cladding has the characteristics of high solidification speed, which makes the cladding process faster and more efficient, and does not require additional front-end and back-end heat treatment processes.

Equipment advantages:
1. Efficient processing and high-precision repair: High-energy laser beam focusing is used to accurately control the thickness and shape of the cladding layer, and the metal powder is quickly melted to form a metallurgical bond with the substrate to ensure that the accuracy of the repaired mold punch meets the design requirements.
2. Excellent coating performance: The alloy coating with excellent wear resistance, corrosion resistance, high-temperature oxidation resistance and other properties is clad on the surface of the mold punch, which significantly improves the service life of the mold punch.
3. Wide applicability: It is suitable for surface strengthening and repair of punches of various materials, including common glass mold materials such as cast iron and copper alloys; at the same time, it is also suitable for repairing punches of different shapes and sizes.
4. Intelligent and visualized operation: Equipped with advanced automatic control system and intelligent operation interface, it can realize automatic operation and remote monitoring of equipment; at the same time, it also has the function of visualizing the repair process. By real-time display of key parameters such as temperature, speed, thickness, etc. during the cladding process, operators can adjust process parameters in time to ensure the best repair effect.
5. Customized service: Customized laser cladding solutions can be provided according to the specific needs of customers, including customized services in equipment configuration, process parameter adjustment, cladding material selection, etc., to ensure that customers obtain the best repair effect and economic benefits.

Application case analysis:
1. Import the punch digital model into the offline programming software to generate a five-axis cladding trajectory path;
2. Use post-processing software to process the trajectory path and import process data and other parameters;
3. Use laser cladding special machine to automatically mass produce punch blanks;
4. Put the cladding product into the sandbox for insulation;
5. Perform final mechanical finishing on the cooled punch to obtain the final punch product.

Metallographic test results:
The cobalt-based alloy/nickel-based alloy strengthening layer is clad on the surface of the punch workpiece, and the strengthening layer is metallurgically bonded with the substrate and has high density. It can significantly improve the workpiece’s resistance to high-temperature wear and corrosion, thereby increasing the service life of the product.

Huirui’s laser cladding machine for glass mold punches leads a new era of mass production, automation, and lean production, significantly improves the production capacity of mold punch laser cladding, greatly shortens the production cycle, and effectively reduces labor costs. As a model of “new quality productivity”, Huirui’s laser cladding technology has brought unprecedented changes to the field of surface modification and remanufacturing of traditional industrial components, which not only promotes the efficient recycling of resources, but also significantly improves economic benefits, giving new vitality and unlimited possibilities to industrial manufacturing.