A method for fabricating an article that includes: providing a first workpiece component formed of a first steel material; joining a second workpiece component to the first workpiece component to form a workpiece, the second workpiece component being formed of a second steel material that is different from the first steel material; and forming a plurality of teeth on the workpiece, the teeth being wholly formed of the first steel material.

A method for fabricating an article that includes: providing a first workpiece component formed of a first steel material; joining a second workpiece component to the first workpiece component to form a workpiece, the second workpiece component being formed of a second steel material that is different from the first steel material; and forming a plurality of teeth on the workpiece, the teeth being wholly formed of the first steel material.

The present disclosure relates to a method of manufacturing a double layer type transmission planetary gear carrier and a planetary gear carrier manufactured by the same, and more particularly, to a material of the carrier and a method of combining materials. The present manufacturing method includes: forming and processing a carrier plate and a base plate by performing hot forging on two aluminum alloys; and welding a connecting portion between the two plates. The present double layer carrier may include a carrier plate; and a base plate which is welded on a connecting portion of the carrier plate, in which materials of the two plates are aluminum forging alloys. According to the present disclosure, it is possible to reduce a weight of the double layer type planetary gear carrier by about 60% by applying an aluminum material and it is possible to easily manufacture the double layer type planetary gear carrier.

The present disclosure relates to a method of manufacturing a double layer type transmission planetary gear carrier and a planetary gear carrier manufactured by the same, and more particularly, to a material of the carrier and a method of combining materials. The present manufacturing method includes: forming and processing a carrier plate and a base plate by performing hot forging on two aluminum alloys; and welding a connecting portion between the two plates. The present double layer carrier may include a carrier plate; and a base plate which is welded on a connecting portion of the carrier plate, in which materials of the two plates are aluminum forging alloys. According to the present disclosure, it is possible to reduce a weight of the double layer type planetary gear carrier by about 60% by applying an aluminum material and it is possible to easily manufacture the double layer type planetary gear carrier.

The present invention relates to a freewheel (2) comprising an inner ring (30), an outer ring (28), a clamping gap (32) between the inner ring (30) and the outer ring (28), a side wall (40) for lateral limitation of the clamping gap (32) and at least one clamping element (34) in the clamping gap (32) which is biased by means of a spring element (66), wherein the spring element (66) is supported or supportable on one side on the clamping element (34) and on the other side on a support projection (70), which is formed by a supporting tongue (74) bent out of the side wall (40) and projecting into the clamping gap (32). In addition, the present invention relates to a method for producing such a freewheel (2).

The present invention relates to a freewheel (2) comprising an inner ring (30), an outer ring (28), a clamping gap (32) between the inner ring (30) and the outer ring (28), a side wall (40) for lateral limitation of the clamping gap (32) and at least one clamping element (34) in the clamping gap (32) which is biased by means of a spring element (66), wherein the spring element (66) is supported or supportable on one side on the clamping element (34) and on the other side on a support projection (70), which is formed by a supporting tongue (74) bent out of the side wall (40) and projecting into the clamping gap (32). In addition, the present invention relates to a method for producing such a freewheel (2).

A method for forming an assembly having a housing and first and second components. The first and second components are movable relative to one another in the housing. The method includes: providing first and second workpieces; moving the first and second workpieces relative to one another in a predetermined manner that produces relative sliding contact between the first and second workpieces while performing a superfinishing operation on the first and second workpieces to form the first and second components, respectively, wherein the superfinishing operation does not comprise a lapping operation; and mounting the first and second components in the housing such that the first and second components are engaged to one another and are movable relative to one another in the predetermined manner.

A method for forming an assembly having a housing and first and second components. The first and second components are movable relative to one another in the housing. The method includes: providing first and second workpieces; moving the first and second workpieces relative to one another in a predetermined manner that produces relative sliding contact between the first and second workpieces while performing a superfinishing operation on the first and second workpieces to form the first and second components, respectively, wherein the superfinishing operation does not comprise a lapping operation; and mounting the first and second components in the housing such that the first and second components are engaged to one another and are movable relative to one another in the predetermined manner.

A method of manufacturing a mechanical part of the present invention includes a first process of forming, by performing a folding processing to an end portion of the material, a portion to be processed having a structure, in which a plurality of layers respectively having a thickness corresponding to a plate thickness of a material overlap each other, in the material such that a plate thickness direction of the layer is orthogonal to a plate thickness direction of the material; and a second process of changing, by performing a forging processing to the portion to be processed, a shape of the portion to be processed to a target shape while press-welding the layers of the portion to be processed to each other by plastic deformation.

A method of manufacturing a mechanical part of the present invention includes a first process of forming, by performing a folding processing to an end portion of the material, a portion to be processed having a structure, in which a plurality of layers respectively having a thickness corresponding to a plate thickness of a material overlap each other, in the material such that a plate thickness direction of the layer is orthogonal to a plate thickness direction of the material; and a second process of changing, by performing a forging processing to the portion to be processed, a shape of the portion to be processed to a target shape while press-welding the layers of the portion to be processed to each other by plastic deformation.