Metal product surface member and its vanishing method

摘要

The surface roughness is improved by improving the surface roughness and improving the compressive residual stress, while the concave part is crushed leaving the concave part of the surface of the metal product surface formed by the blasting.Metal products with surface roughness on the surface by blastingLower hardness than the surface hardness of the metal productAndA spherical shot having a diameter larger than the width of the recesses of the recesses is jetted against the surface of the metal product as a crushed shot and collided.By selectively crushing the convex portion formed in the surface of the metal product, the convex portion is formed.Problem to be solved: to provide a metal product surface member with improved surface roughness of the metal product.