Patent ID: 6594895
Filing Date: 2003-07-22
Classification: B23P,F16H,Y10T

Abstract:
A method of manufacturing a torque converter having an impeller, a turbine runner and a stator, said method comprising:deforming a first steel plate into a front cover, and deforming a second steel plate into an impeller shell, wherein each of said first steel plate and said second steel plate have the following composition: 0.2-0.6 weight percent carbon 0.01-0.1 weight percent silicon 0.05-0.5 weight percent manganese 0.01-0.1 weight percent titanium 0.001-0.01 weight percent boron remainder weight percent iron; integrally coupling said impeller shell to an impeller; integrally coupling said front cover to said impeller shell to form a housing in which is to be contained a turbine runner, with said front cover including a flanged portion to which is to be fastened a drive plate that is connected to a crank shaft of an engine; and wherein said flanged portion is produced by forming a lamination of a single material so as to increase the thickness of said flanged portion.