High temperature high heating rate treatment of PDC cutters

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United States of America Patent

PATENT NO 9539700
APP PUB NO 20160107293A1
SERIAL NO

14978269

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Abstract

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A post manufacture method and apparatus for reducing residual stresses present within a component. The component includes a substrate, a polycrystalline structure coupled thereto, and residual stresses present therein. The method includes obtaining a component from a component category, determining a critical temperature and a critical time period for the component category at which the component becomes structurally impaired, determining a heat treatment temperature and a heat treatment time period based upon the critical temperature and the critical time period, and heating one or more remaining components from the component category to the heat treatment temperature for the heat treatment time period. The apparatus includes a heater defining a heating chamber and a molten bath positioned within the heating chamber. The components are placed within the pre-heated molten bath and isolated from oxygen during heating to the heat treatment temperature for the heat treatment time period.

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Patent Owner(s)

Patent OwnerAddress
VAREL INTERNATIONAL IND L P1625 WEST CROSBY SUITE 124 CARROLLTON TX 75006

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bellin, Federico Tomball, US 54 471
Chintamaneni, Vamsee Houston, US 15 84

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