A method for manufacturing a hollow camshaft is provided, and more particularly, a method for manufacturing a combined hollow camshaft by an axial-compression upsetting-deformation technique. The present method solves a problem that the current camshaft manufactured in an internal high-pressure expansion manner in the prior art has the insufficient locking force to cause the loosening of a cam. The method is as follows: a camshaft is formed by combining two independent units, namely a cam and a shaft tube. Non-circular countersinks are distributed on two sides of the cam. Thrust steps are formed on the shaft tube correspondingly. The cam is placed between the two thrust steps of the shaft tube. The locking force is applied to the cam by utilizing the thrust steps on the two sides of the cam based on thermal expansion and contraction. Simultaneously, the thrust steps lock the cam with the countersinks.

Tooling is held within the nose of a rotary punch and as the tool is rotated and forced against a workpiece a fastener within the tool becomes affixed to the workpiece. The tools have displacers which non-destructively deform and reshape the workpiece without any loss of workpiece material. The tools have various types of displacers including; tapered and arcuate displacers which act in concert to progressively act upon the workpiece; spherical displacers which may be fixed or rotatable such as caged ball bearings; and a full-circle displacer ring which wobbles as it presses against the workpiece. In the case of fixed spherical displacers, a multi-stroke method can be employed where the tool is rotated after each stroke in a group of installation strokes.

A component combination of at least two components, which are joined at at least one joint, is provided. The component combination includes a first component, wherein a first joining element having a supporting section is pressed into a passage hole in the first component at the joint, and includes a second component, in which a fastening receiving section is formed at the joint, wherein the first joining element also has a fastening section, which engages in the fastening receiving section of the second component in a form-fitting and/or force-fitting manner. A method for producing the component combination is also provided.

A component combination of at least two components, which are joined at at least one joint, is provided. The component combination includes a first component, wherein a first joining element having a supporting section is pressed into a passage hole in the first component at the joint, and includes a second component, in which a fastening receiving section is formed at the joint, wherein the first joining element also has a fastening section, which engages in the fastening receiving section of the second component in a form-fitting and/or force-fitting manner. A method for producing the component combination is also provided.

Provided is construction which is able to downsize an orbital forging device comprising a spherical seat with shaft that swings and rotates with a molding die. The end section on the other side in the axial direction of the swinging shaft 13 is supported with respect to the driving mechanism 17 in a state where the movement toward one side in the axial direction (lower side) is prevented, and a member for preventing the swinging shaft 13 from moving toward the one side in the axial direction with respect to the frame 10 is not assembled in a section which is located between the convex spherical seat 14 and the driving mechanism 17 in the axial direction of the swinging shaft 13.

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.

A method for manufacturing a rotor shaft for an electrical aggregate, including providing a pin having a shaft plug-in, in particular a cylindrical shaft plug-in; producing a hollow rotor shaft body being open at least at a first end for receiving the pin and in form of a rotary body, where an oversize exists between at least one outer surface of the shaft plug-in and at least one inner surface of the rotor shaft body; and inserting the shaft plug-in into the rotor shaft body for fastening the pin to the rotor shaft body for finishing the rotor shaft, such that the process and operation of manufacturing a rotor shaft is simplified while at the same time reducing costs and material waste, and to produce a rotor shaft that can withstand high loads and transmit high torques.

A method for manufacturing a rotor shaft for an electrical aggregate, including providing a pin having a shaft plug-in, in particular a cylindrical shaft plug-in; producing a hollow rotor shaft body being open at least at a first end for receiving the pin and in form of a rotary body, where an oversize exists between at least one outer surface of the shaft plug-in and at least one inner surface of the rotor shaft body; and inserting the shaft plug-in into the rotor shaft body for fastening the pin to the rotor shaft body for finishing the rotor shaft, such that the process and operation of manufacturing a rotor shaft is simplified while at the same time reducing costs and material waste, and to produce a rotor shaft that can withstand high loads and transmit high torques.

A hub main body (13z) is supported by a support portion (18). At least one block (22) is engaged with a stationary flange (6) of an outer ring (2). As a support plate (21) rotates, the outer ring (2) rotates. A caulking portion (16) is formed by pressing a pressing die (20) on a cylindrical portion (31).