Powder Metallurgy

Powder Metallurgy  is a process for making parts from metal powder. A mixture of metal powder and a binder is pressed into a mould to form the shape of the finished part. This preform is then heated to a temperature just below the melting point of the alloy. During this sintering process the diffusion of metal atoms between the alloy particles produces strong bonds between the particles. The final product has the advantage of a very fine grain size. Powder Metallurgy produces fully dense pressed components and is very economic for high volume production of small simple shapes. This technology allows us to manufacture uniform microstructures, which are free of nonmetallic inclusions and defects. Powder Metallurgy components are proven to have outstanding wear resistance and mechanical properties and provide exceptional reliability needed for anything from aerospace bearings to industrial saw teeth.

Surface finish is typically 125 RMS, with dimensional control dependent on the part size and geometry. Components should weigh less than 0.5 lbs and have a maximum surface area of 2.5 in 2. A variety of shapes can also be extruded such as diamond, wedge, rectangular and circular sections up to 1" diameter and up to 40" long. These extrusions are excellent for hardfacing consumables, cutters and wear pads.

IS THE POWDER METALLURGY PROCESS FOR YOU?

If your component meets one or more of the following basic criteria, powder metallurgy could be the correct process selection.

  • High volume requirements
  • Simple shapes
  • Small parts

Powder Metallurgy Materials

  • Stellite Alloys
  • Tribaloy Alloys
  • Nistelle Alloys
  • Other alloys available on request

Powder Metallurgy Typical Components

  • Saw tips
  • Saw tipping rod
  • Balls & Seats
  • Spacers
  • Bushings
  • Fine diameter wire
  • Turbocharger components