Kabushiki Kaisha Kobe Seiko Sho

Yoshinori Terada

Takenori Nakayama

Yasunori Wada

Takashi Yashiki

Hiroshi Satoh

Yasuaki Sugizaki

Tatsuya Yasunaga

Hidetoshi Nishimoto

Keiji Ueda

Tadashi Abumiya

Hidenori Nishimoto

Kenji Umei

Disclosed is a method of manufacturing a surface treated metal member excellent in wear resistance, comprising the steps of: applying Ni--P electroplating on the surface of a metal base member and heat-treating the metal base member; and blasting, on the surface of the metal base member, fine particles having nearly spherical shapes and having an average particle size of 10-400 .mu.m.

Surface treated metal member excellent in wear resistance and its

A machine part comprises: a base part formed of a titanium alloy or an aluminum alloy and having a roughened surface of Ra 0.5 .mu.m or above and PPI.sub.50 or above; and a Ni--P electrodeposit layer formed over the surface of the base part by an electroplating process using a Ni--P plating bath containing a stress relaxing agent, and having a stress of 20 kgf/mm.sup.2 or below. The machine part has a small specific gravity, excellent seizure resistance, wear resistance and fatigue strength.

Machine part resistant to rolling friction

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Tokyo, Japan

Yoshinori Terada