Laser Welding Services

Laser Welding for Precision Mold Repair

Laser welding uses a highly focused laser beam to generate intense heat in a very small area, melting the material and often a filler material to create a weld.

Laser welding often offers a superior solution for plastic injection mold repair due to its exceptionally low heat input and even greater precision, leading to minimal distortion, less post-processing, and the ability to work on extremely delicate features.

The integrity of your molds is paramount for manufacturers relying on precision plastic injection molding services, A damaged mold means costly downtime, inconsistent parts, and a direct hit to your bottom line.

At MoldMed we understand these critical challenges. With a long-standing reputation built on decades of expertise in injection mold maintenance, repair, and building, we offer cutting-edge solutions, specializing in the precision of micro welding and laser welding.

While traditional welding methods often introduce excessive heat, leading to distortion and requiring extensive post-processing, micro welding and laser welding offer unparalleled precision for injection mold repair. Both micro welding and laser welding are highly effective for repairing plastic injection molds, offering precision and minimizing heat input compared to traditional welding methods like TIG or MIG.

Key Benefits of Laser Welding:

• Exceptional Precision and Control: The laser beam can be precisely controlled, allowing for highly localized heating and an extremely small heat-affected zone (HAZ). This minimizes distortion and preserves the integrity of the surrounding mold material.
• Ultra-Precise Material Deposition: The laser beam’s narrow focus allows for extremely accurate material placement, even in deep cavities or complex geometries.
  Minimal Thermal Distortion: The localized heat input drastically reduces the risk of mold warping or structural changes.
• Strong, Homogeneous Welds: Produces high-quality, dense welds with excellent metallurgical bonds, often matching the base material’s hardness.
• Minimal Heat Input: This is a key advantage, as it reduces the risk of warping, stress, and annealing of the mold material, which is crucial for maintaining the mold’s original hardness and dimensional accuracy.
• Speed and Efficiency: Laser welding can be very fast, leading to quicker repairs and reduced production downtime.
• No Pre-heating Required (often): For many applications, pre-heating the mold is unnecessary, simplifying the process.
• Ability to Work in Confined Spaces: The fiber optic delivery of the laser allows access to areas difficult to reach with other welding techniques.
• Versatility: Can be used on a wide range of materials commonly found in molds, including various tool steels (e.g., P20, S7, H13), stainless steel, aluminum, copper, and even dissimilar metals.
• Clean Welds: Produces clean, high-quality welds with often requires minimal post-weld machining or polishing.
• Accessibility: The focused beam allows access to hard-to-reach areas within the mold.
• Automation Potential: Easily integrated into automated manufacturing processes.