Metal product surface member and method for burnishing same

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12251791
APP PUB NO 20230191560A1
SERIAL NO

17258305

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Abstract

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The present invention improves surface roughness by knocking down protruding parts while leaving recessed parts in the surface of a metal product, protrusions/recesses having been formed in said surface via blasting, and improves surface hardness and compressive residual stress. Treatment is performed upon a metal product in which protrusions/recesses have been formed in the surface thereof via blasting. Spherical shot that are less hard than the surface hardness of the metal product and have a particle size that is greater than the width of recessed parts of the protrusions/recesses are sprayed toward and collide against the surface of the metal product as crushing shot, and the protruding parts of the protrusions/recesses formed on the surface of the metal product are selectively knocked down, thereby providing a metal product surface member in which the surface roughness of the metal product has been improved.

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Patent Owner(s)

  • FUJI KIHAN CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miyasaka, Yoshio Nagoya, JP 33 167

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