Note: Brazing, De-Brazing Diamond Carbide Inserts

Objective:

Heat steel cutting bits with diamond-carbide inserts for brazing and de-brazing; the end products are cutting tools

End Product:

Steel cutting bits

Equipment:

Ambrell EASYHEATTM 4.2 kW, 150-400 kHz induction heating system with a workhead and coil specifically designed for this application

Materials:

Steel cutting bits with diamond-carbide inserts

Temperature:

1400 ºF (760 ºC)

Frequency:

245 kHz

Testing:

A specially designed single-turn hairpin coil was developed for this heating application. Initial tests were conducted to optimize power delivery. Temperature indicating paint was applied to the part, and it dissolved when the part reached 1400 °F (760 °C). It took 25 seconds with a 4.2 kW EASYHEAT to reach temperature, meeting the client’s objectives

Benefits:

  • Speed: The client requested a system that would meet their time objectives, which the 4.2 kW EASYHEAT did

  • Reliability: The client had been using an imported system that had suffered from reliability issues and down time, and consequently was looking for a reliable Ambrell unit

  • Footprint: An EASYHEAT and a workhead requires a minimal footprint, saving the client floor space compared to their bulky old unit

  • Integration: An EASYHEAT can be easily integrated into the client’s manufacturing process

Brazing, De-Brazing Diamond Carbide Inserts

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