Laser Welding Machine For Mold

Shenzhen Chinasky Laser Technology Co., Ltd. is one of the most professional manufacturers and suppliers of laser welding machine for mold in China. Please rest assured to buy high quality laser welding machine for mold with 2 years warranty from our factory. We also accept customized orders.

It melts mold‑grade filler wire (0.1–1.2 mm) and base metal to create dense, metallurgically bonded welds for repairing cracks, pores, sand holes, worn edges, broken corners, and surface defects. Suitable for mold steel, stainless steel, aluminum, copper, and dissimilar metals, it welds 0.2–6 mm thickness.

Ideal for injection, stamping, die‑casting, and precision tooling, it helps restore molds to near‑original performance (95–99%), reducing downtime and replacement costs while extending mold life.

Ultra-Precision Fiber Laser Source

The machine uses a high-quality pulsed/QCW/CW fiber laser (150W–3000W, 1064–1080nm) with exceptional beam quality (M² ~1.1), delivering tightly focused, stable energy for micron-level welding. This source enables spot sizes adjustable from 0.1 mm to 5.0 mm, ensuring pinpoint accuracy for repairing micro-cracks, tiny pores, and sharp mold edges without overheating adjacent areas. It eliminates the need for frequent component replacements, offering consistent performance across thousands of repair cycles.

HD CCD/Microscope Visual Monitoring

Built-in 10–20X HD CCD or microscope monitoring provides clear, magnified views of the welding area, enabling precise alignment and defect targeting. Operators can visualize the weld pool in real time, adjusting position and energy to avoid over-welding or missed repairs. This visual feedback ensures flawless, low-porosity welds on intricate mold details, such as gate areas and sealing edges.

Wide Material & Thickness Compatibility

The system welds nearly all mold-grade materials, including tool steels, stainless steel, aluminum, copper, and dissimilar metal combinations, with a thickness range of 0.2mm to 6mm. It handles both micro-repairs (0.1mm filler wire) and larger material additions, making it suitable for everything from tiny 3C mold inserts to heavy die-casting molds. This versatility eliminates the need for multiple welding machines for different material types.

Maintenance-Free Fiber Laser Design

Unlike traditional YAG lasers, the fiber laser source has no consumable parts (no lamps, reflectors, or rods) and requires minimal upkeep, with a service life of 50,000–100,000 hours. Routine maintenance is limited to occasional water chiller filter changes and lens cleaning, reducing long-term operational costs and downtime. The modular design also simplifies component replacement, ensuring fast service and minimal production interruptions.

High-Efficiency Water Cooling System

An industrial-grade closed-loop water chiller maintains stable laser temperature during continuous operation, preventing overheating and ensuring consistent energy output even for extended repair sessions. The cooling system is energy-efficient, with low power consumption compared to traditional cooling setups, supporting reliable performance for high-power (1500W–3000W) models used on large molds.

Strong, Low-Porosity Welds

The focused fiber laser creates dense, metallurgically bonded welds with minimal porosity, achieving weld strength up to 95% of the base material. Weld seams are smooth and uniform, often requiring little to no post-weld polishing or grinding-direct etching or texturing is possible immediately after repair, saving hours of finishing work. This results in a seamless repair that matches the mold's original surface quality.

Mold Repair (Core)

• Injection Molds: Worn sealing edges, gate wear, cracks, pinholes, and dimension correction
• Stamping Molds: Cracks, chipped corners, and edge wear in automotive/metal stamping tools
• Die‑Casting Molds: Repair of thermal cracks, erosion, and porosity in aluminum/zinc die molds
• Precision Molds: 3C (phone/tablet), medical, toy, and automotive interior molds (HRC 50–60)

Industrial & Manufacturing

• Tool & Die: Punches, dies, inserts, and fixture repair
• Metal Parts: Thin‑wall components, dissimilar metal joining, and micro‑welding
• Automotive: Mold repair for engine, chassis, and interior parts
• Medical Devices: High‑cleanliness, precision welding for surgical tooling and implant molds
• Hardware & Electronics: Precision components, connectors, and small metal parts

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