Braze-fitting carbide metal pins

Induction brazing in tool making: Processing carbide quickly and reliably

The chisel of an asphalt cutter is made with a complex process: The carbide metal pins must be attached to the base structure precisely using induction brazing. Generators by eldec precisely provide the required energy.

Brazing carbide metal pins perfectly to a base structure

It is obvious that the chisel of an asphalt cutter is exposed to extreme wear: The tool removes hard blacktop at high speeds while simultaneously chopping the material. Toolmakers rely on a complex design for the cutter. The chisel tip is made of wear-resistant carbide, while the chisel body consists of breakage-resistant steel. It optimally absorbs the forces in the lower area of the tool.

To reliably braze the carbide metal pins to the steel body, a German toolmaker now relies on the induction brazing technique from eldec. The process uses inductors with multiple windings that enclose the chisel tip precisely during the induction, bringing it up to red heat and brazing it to the base structure. At the same time, brazing acts as an additional hardening step, thereby improving the tool’s stability.

In addition to inductors, the tool systems specialist also uses individually configured medium-frequency generators by eldec. The microprocessor control ensures that the required energy is supplied to the process quickly and precisely. This is one major reason why induction brazing with eldec is significantly more energy efficient than alternative methods such as flame or furnace brazing.  

Braze-fitting carbide metal pins


  • Fast induction brazing 
  • Energy-efficient control
  • Easy generator operation
  • High process stability




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