WELDING WIRES FOR LASER CLADDING

Laser Cladding – A Modern Method for Surface Reinforcement

Laser cladding is an advanced technology used for precise restoration and strengthening of component surfaces. The process involves simultaneously melting the surface of the base material and the additional material (in powder or wire form) using a concentrated laser beam. This results in a durable, uniform layer with high resistance to wear and abrasion, while minimizing thermal impact on the base material.
Among the leading manufacturers of materials for this application is the German company Lawitex, offering a specialized line of wires called LAWI (Laser-Additive Wire). These products are designed for the most demanding industrial applications.

Key Features of LAWI Wires

• High purity and precise chemical composition
  LAWI wires are manufactured according to strict standards, reducing the risk of porosity and unwanted inclusions in the clad layer. Various alloys are available, including iron-, nickel-, and cobalt-based, allowing achievement of desired properties such as resistance to abrasion, corrosion, and high temperatures.
  
  
• Variety of sizes and forms
  According to the manufacturer, LAWI wires come in several diameters, most commonly between 0.3 mm and 0.6 mm. This allows easy adaptation to specific applications and the power of the laser used—whether CO₂, Nd:YAG, or fiber lasers.
  
  
• Stable melting and uniform cladding
  Carefully selected wire shape and stable feeding properties enable obtaining a homogeneous, even layer, limiting defects and reducing the need for final machining.
  
  
• Compatibility with various laser systems
  LAWI can be used with most commercially available laser cladding installations, eliminating the need for costly modifications to existing equipment. Additionally, Lawitex provides support in configuring process settings.

Applications of LAWI Wires in Various Industry Sectors

• Tooling Industry
  Restoration of injection molds, forging, and cutting tools. Precise cladding of damage and surfaces exposed to intense wear.
  
  
• Automotive
  Regeneration of engine parts, including shafts and pistons, as well as reinforcement of drivetrain and transmission components.
  
  
• Aerospace
  Protection and repair of parts such as turbine blades and engine components. High resistance to temperature and mechanical loads is essential here.
  
  
• Energy Sector
  Cladding of rotors and turbine components used in power plants. The process improves corrosion resistance and extends the lifespan of critical parts.

Accessories and Technical Support from Lawitex

In addition to LAWI wires, Lawitex offers a wide range of accessories supporting the cladding process, including:

• Wire holders and guides – ensuring precise and stable wire feeding.
• Nozzles and tips – compatible with various laser types and geometries of processed parts.
• Cooling and extraction systems – providing proper temperature conditions and safety during the process.
• Software – supporting process automation and monitoring of cladding parameters.

Lawitex also provides comprehensive technical consulting, assisting users in selecting optimal process parameters such as laser power, wire feed rate, and temperature range to achieve repeatable and high-quality results.