Abstract: A laser ablation method is used to polish a bearing surface of an automotive crankshaft. A laser ablation device generates a laser according to parameters such as wavelength, pulse duration, pulse repetition rate, and beam quality. The laser is applied to the surface of a rotating engine component, such as a crankshaft, as the component is rotated in order to polish the surface according to the parameters. The laser substantially improves tribological performance of the bearing surface by changing the waviness and form of the surface profile. Further, oil-retention reservoirs are formed in the surface. As a result, the friction coefficient of the crankshaft surface is reduced while the roughness of the crankshaft surface is maintained, reduced, or increased.

Abstract: An apparatus for use with a jacking device utilized in leveling modular type homes at a job site which includes an elongated tubular type member having a first predetermined length and a first predetermined shape and is formed from a first preselected material. An end cap member is engageable at a first end thereof with a bottom end of the elongated tubular member which has a predetermined configuration at a second end thereof to enable engagement with an upper portion of a jack. The end cap member is formed from a second preselected material. Finally, there is a top plate member engageable with an upper end of such elongated tubular member for supporting a predetermined structural member attached too such modular type home. The top plate member includes each of a second predetermined length and a second predetermined shape and is formed from a third preselected material.

Abstract: A laser ablation method is used to polish a bearing surface of an automotive crankshaft. A laser ablation device generates a laser according to parameters such as wavelength, pulse duration, pulse repetition rate, and beam quality. The laser is applied to the surface of a rotating engine component, such as a crankshaft, as the component is rotated in order to polish the surface according to the parameters. The laser substantially improves tribological performance of the bearing surface by changing the waviness and form of the surface profile. Further, oil-retention reservoirs are formed in the surface. As a result, the friction coefficient of the crankshaft surface is reduced while the roughness of the crankshaft surface is maintained, reduced, or increased.