Method for manufacturing a camshaft having added wear resistance of the lobe
AssigneeCaterpillar Inc.
InventorsThomas Majewski, Michael J. Pollard
Life of this patent
Estimating the term…
Abstract
A method of manufacturing a camshaft used in an internal combustion engine. The method of manufacturing the camshaft produces a camshaft which has reduced weight and added wear resistance at a lobe of the camshaft. The camshaft is manufactured to provide increased efficiency of the internal combustion engine. The method of making the camshaft includes mixing wear resistant material with a base material and metering the mixture into a rotating die. The rotating die rotates at a predetermined speed and forces the wear resistant material to the outer surface of the lobes.
Claims20
A method for manufacturing a camshaft, comprising the steps of:
- forming an integrated mixture of a base material having a first density and a wear resistant material having a second density, the second density being more dense than the first density;
- metering the integrated mixture into a die, the die having an interior shape corresponding to a shape of the camshaft including a cam and a lobe extending from the cam;
- rotating the die at a predetermined speed, the predetermined speed forcing the wear resistant material to migrate toward the outside of the lobe;
- and
- removing a formed camshaft from the rotating die when the integrated mixture is solidified.
A method of manufacturing a camshaft having a wear resistant lobe, the method using a rotating assembly having a rotating die having an interior shape corresponding to the camshaft, the method comprising the steps of:
- mixing a base material and a wear resistant material to form an integrated mixture, the wear resistant material being harder than the base material;
- metering the integrated mixture into the rotating die;
- rotating the rotating die at a predetermined speed, the predetermined speed forces the wear resistant material toward an outer surface of the lobe;
- and
- removing a formed camshaft from the rotating die when the integrated mixture is solidified.
Dependencies are inferred from the claim text.