Hybrid Washer and Method of Manufacture
OwnerJohn Eric Chapmaninventor
Life of this patent
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Abstract
Metal powder is compacted in a die to produce a preform having a preselected porosity with the metal powder containing iron and having a plurality of particles having a preselected particle sizes. The preform is carburized to produce a high carbon solution in the metal powder. The preform is contacted with an ammonia gas distillation solution to inject nitrogen therein. The preform is heat treated for a predetermined period of time at a predetermined temperature and at a predetermined pressure. The preform is quenched to form a metal part.
Claims20
A method of producing a metal part, the method comprising:
- compacting a metal powder in a die to produce a preform having a preselected porosity with the metal powder containing iron and having a plurality of particles having a preselected particle sizes,
- carburizing the preform to produce a high carbon solution in the metal powder, contacting the preform with an ammonia gas distillation solution to inject nitrogen therein,
- heat treating the preform for a predetermined period of time at a predetermined
- temperature and at a predetermined pressure, and
- quenching the preform to form the metal part.
A method of producing a hybrid washer, the method comprising:
- compacting a metal powder in a die to produce a preform having a preselected porosity with the metal powder containing iron and having a plurality of particles having a preselected particle sizes,
- carburizing the preform to produce a high carbon solution in the metal powder,
- contacting the preform with an ammonia gas distillation solution to inject nitrogen therein,
- heat treating the preform for a predetermined period of time at a predetermined temperature and at a predetermined pressure, and
- quenching the preform to form the hybrid washer.
Dependencies are inferred from the claim text.