Pot broaching tools and methods for remanufacture-forming pot broaching tools
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United States of America Patent
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Dec 29, 2020
Grant Date -
Jul 30, 2020
app pub date -
Apr 14, 2020
filing date -
Dec 11, 2018
priority date (Note) -
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Abstract
A method for remanufacturing a pot broaching tool includes re-grinding cutting teeth on a cutting side of a used pot broaching tool, cool laser welding a rough milled shim to a bottom side of the used pot broaching tool, and grinding the cool laser welded rough milled shim such that an outer surface of the cool laser welded milled shim has a high polished surface. An inner surface of the rough milled shim has an Ra surface finish between 250 and 30 microinches and the ground outer surface of the rough milled shim has a flatness tolerance within +0/−0.0002 inches. Also, the method can include installing the remanufactured pot broaching tool in a pot without the use of a thin shim between the outer surface of the cool laser welded milled shim and an inner surface of the pot.
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