Crane Arm Fiber Laser Welding Machine for Mold

Crane Arm Fiber Laser Welding Machine for Mold

Core components

1.Large crane mechanical structure

Usually adopts multi-axis robotic arm or gantry structure, providing large-range and high-degree-of-freedom movement capability, suitable for precise positioning and complex trajectory welding of large molds (such as automotive cover molds, aerospace parts, etc.).

2.Fiber laser

Adopts fiber laser source (such as IPG, SPI and other brands), with power range from 500W to tens of thousands of watts, with high energy density, stable output and long life, especially suitable for welding of highly reflective materials (aluminum, copper).

3.Special head for mold welding

Equipped with adaptive optical system (such as swing welding head, coaxial visual monitoring), it can adjust the focus position and welding path in real time to ensure the accuracy (micrometer level) and surface flatness of mold repair.

4.Control system

Integrated industrial-grade CNC system (such as Siemens, Fanuc), supports 3D model import, offline programming and real-time weld tracking, suitable for automated welding of complex curved molds.

Core advantages

• High precision: small laser focus spot (0.1-0.3mm), narrow heat-affected zone, reduced mold deformation, suitable for precision repair.

  
  

• Efficient and flexible: Robotic arm + fiber optic transmission enables long-distance operation, and can weld deep cavities and narrow gap structures that are difficult to reach with traditional methods.

  
  

• Wide material compatibility: Compatible with mold materials such as steel, aluminum alloy, titanium alloy, and cemented carbide, especially suitable for high value-added mold repair.

  
  

• Intelligent: Optimize welding parameters (power, speed, wire feed) through AI algorithms to automatically compensate for mold wear or deformation.

  
  

Typical application scenarios

• Repair of large stamping molds

Corner collapse and wear surfacing of automobile cover molds, no secondary processing is required after repair.

• Surface treatment of injection molds

Texture surface repair and exhaust groove processing to maintain mold surface consistency.

• Aerospace component manufacturing

High-strength welding of titanium alloy engine blade molds and landing gear molds.

• 3D printing conformal cooling water channel sealing

Laser sealing of the internal water channel of metal 3D printing molds to avoid water leakage.

Key parameters for selection

Parameter item Reference range Description

Laser power 1000W-6000W Select according to material thickness (e.g. 3mm steel requires ≥2kW)

Robot arm travel 3m×2m×1m (XYZ axis) Need to cover the maximum size of the mold

Positioning accuracy ±0.05mm Affects weld repeatability

Cooling method Water cooling (dual temperature control system) Ensures long-term continuous operation stability

Software function Offline programming + real-time monitoring Such as Precitec weld tracking system

Operation precautions

• Safety protection

A Class 4 laser protection room is required, and light gate interlock and emergency stop devices are set.

• Mold pretreatment

Before welding, it is necessary to thoroughly clean (degreasing and rust removal) and preheat if necessary (such as high carbon steel mold).

• Process verification

Parameter tests are performed for different materials (such as H13 mold steel vs. S136 stainless steel) to avoid pores and cracks.

• Post-processing

Stress relief (such as vibration aging treatment) or local fine grinding may be required after welding.

Industry development trend

• Hybrid welding: Laser + arc (Laser-MIG) hybrid technology improves the welding efficiency of thick plate molds.

  
  

• Digital twin: Optimize welding paths through virtual debugging and reduce trial and error costs.

  
  

• Green manufacturing: Use energy-saving fiber lasers (electric-optical conversion efficiency > 40%) to reduce carbon emissions.