Idemitsu Kosan Company, Limited

Isoo Suzuki

Hideo Kanamori

Katsumi Hashimoto

Kohei Nakatani

Yasusi Aida

Toshiyuki Harada

Kouji Imai

Disclosed is a transparent electrical discharge machining fluid which is provided by mixing 95-60% by weight of a mineral oil and/or a synthetic oil, 5-40% by weight of water and surface active agent in an amount of 5-40% by weight of said oil and water. This machining fluid is transparent and has a kinetic viscosity of 20 sSt or less at 40.degree. C.

Transparent electrical discharge machining fluid

A method of lubricating a metal working machine which has (i) at least one sliding machine surface requiring lubrication and (ii) a metal working section wherein metal is worked in contact with a metal working fluid, said method comprises applying a lubricating oil composition to said at least one sliding surface and using as said metal working fluid an aqueous working fluid composition comprising said lubricating oil composition diluted with water, the ratio of water to said lubricating oil composition being at least 3 to 1,

Method of lubricating working machinery

Growing community of inventors

Tokyo, Japan

Isoo Suzuki