MECHANICAL STRUCTURE COMPONENT, SINTERED GEAR, AND METHODS OF MANUFACTURING MECHANICAL STRUCTURE COMPONENT AND SINTERED GEAR

摘要

A sintered gear serving as a mechanical structure component is a mechanical structure component made of a metal sintered body, and includes a base region; and a high density region formed so as to include a maximum stress position at which a maximum tensile stress or a maximum shear stress is applied, and to include a surface, in which the high density region is lower in porosity than the base region. A surface hardened layer is formed in a region including the surface by performing a hardening process.

主权项

1. A mechanical structure component made of a metal sintered body, said mechanical structure component comprising:
a base region; and a high density region formed so as to include a maximum stress position at which a maximum tensile stress or a maximum shear stress is applied, and to include a surface, said high density region being lower in porosity than said base region, a surface hardened layer being formed in a region including said surface by performing a hardening process.