Method for manufacturing a rotary rock bit with improved weld root geometry
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United States of America Patent
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Sep 12, 1989
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N/A
app pub date -
Jun 2, 1988
filing date -
Jun 2, 1988
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Expired
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Abstract
A method is shown for manufacturing rotary rock bits. The method reduces the effect of stresses in the area of the radial weld seams by providing a channel in the interior of the bit which intersects the root region of each weld, providing a generous radius for the root region of each radial weld.
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