Laser cladding equipment structure introduction

Laser cladding equipment structure introduction

Laser cladding equipment is mainly composed of the following core structures. Each module works together to ensure high precision, high efficiency and high stability of the cladding process:

1. Laser emission system (laser)

• Core component that provides a high energy density laser beam for rapid melting of metal powder or wire.
  
• Common laser types include: fiber laser, semiconductor laser, CO2 laser, etc.
  
• The power can be selected according to the process requirements, such as 1kW~10kW.
  
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2. Optical transmission system

• Includes collimator, focusing lens group, optical fiber transmission system, etc.
  
• Realize efficient transmission and precise focusing of the laser beam from the laser to the workpiece surface.
  
• The focus spot diameter and focal depth directly affect the cladding quality.
  
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3. Coaxial powder feeding system / wire feeding system

• Metal powder feeder or wire feeder ensures that the cladding material is fed into the molten pool evenly and stably.
  
• Coaxial powder feeding technology can achieve uniform cladding in 360° direction and improve process consistency.
  
• Powder feeders include spiral powder feeders, vibrating powder feeders, etc.
  
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4. Workpiece motion system (CNC platform or robot system)

• Usually it is an X/Y/Z three-axis CNC workbench or a six-axis industrial robot.
  
• Control the exact path and speed of the workpiece or nozzle to achieve complex curved surface cladding.
  
• Can be combined with a rotating worktable to achieve multi-dimensional cladding.
  
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5. Cooling system

• Including laser cooling, water-cooling nozzles, etc., which are used to control the temperature of various parts of the equipment to prevent thermal deformation or damage.
  
• Ensure long-term stable operation of the equipment.
  
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6. Control system

• Use PLC, CNC or industrial computer system for cladding path planning, parameter setting and process control.
  
• It can realize the linkage control of multiple parameters such as laser power, powder feeding amount, movement speed, etc.
  
• Support human-machine interface (HMI), easy operation and parameter visualization.
  
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7. Protective gas system

• Argon or nitrogen is usually used as a protective gas to prevent oxidation of the cladding area and improve the quality of the cladding layer.
  
• The gas passes through the nozzle to form a protective atmosphere, covering the molten pool area.
  
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8. Safety protection system

• Including laser protection cover, smoke filtration system, temperature monitoring, emergency stop switch, etc.
  
• Meet industrial safety standards to ensure operator safety.