Induction Brazing Carbide File
Objective:ย Induction Brazing carbideย rotary file assemblies with uniform concentricity in an aerospace application
Material โข Carbide blank โข High speed steel shank โข Temperature indicating paint โข Braze shim and black flux
Temperature 1400ยฐF (760ยฐC)
Frequency 550 kHz
Equipment:ย DW-UHF-4.5kw induction heating system, equipped with a remote heat station containing two 0.33 ฮผF capacitors (total 0.66 ฮผF) An induction heating coil designed and developed specifically for this application.
Process A multi-turn helical coil is used. The part is heated to determine the time required to reach the desired temperature and required heat pattern. It takes approximately 30 – 45 seconds to reach 1400ยฐF (760ยฐC) depending on the various part sizes. Flux is applied to the entire part. A braze shim is sandwiched between the steel shank and carbide.ย Induction heating powerย is applied until the braze flows. With proper fixturing, concentricity of the part can be achieved.
Results/Benefits โข Repeatable, consistent precise heat.