An apparatus for smoothing an inner toothing and/or an outer toothing of a component part. At least two radially adjustable smoothing gears, which engage in the inner toothing and/or outer toothing, are rotatably arranged inside the inner toothing and/or outside of the outer toothing. During smoothing, the component part is not firmly clamped but rather only rests loosely on a support. A thrust ring is provided at least at one of the smoothing gears for limiting axial movements of the component part, which occur during smoothing.

An embodiment includes a suspended supporting device for targeted compression treatment of rotating shaft products, including: a containment frame including: a main portion; and an articulating arm including an attachment for at least one targeted compression cartridge, the at least one targeted compression cartridge including at least one angled compression element; a support element attached to the main portion and providing internal stabilization to the supporting device; a mechanism providing motion to the articulating arm with respect to the main portion; and an attachment mechanism for suspending the supporting device via attachment to an external element. Other aspects are described and claimed.

The invention relates to a hard-rolling roller for a deep rolling tool having a torus-shaped base body for deep rolling of radiuses or recesses which limit the bearing trunnion on crankshafts on both sides, and two at least approximately truncated cone-shaped central bodies, rising on both sides of the body. A cylindrical body rises on the upper end surface of one of the two central bodies.

A method for chipless machining of a surface region of a rolling-element bearing ring includes rotating the rolling-element bearing ring relative to a first tool having a first tool tip and a second tool having a second tool tip, positioning the first and second tool tips at start positions at first and second opposite axial ends of the surface region, and moving the first and second tools in opposite axial directions such that the first tool tip follows a first helical or spiral path on the surface region and the second tool tip follows a second helical or spiral path on the surface region, the first and second paths crossing at multiple points within an overlap region located between axial ends of the surface regions.

An embodiment includes a suspended supporting device for roller compression treatment of rotating shaft products, comprising: a containment frame including: a main portion; and an articulating arm including an attachment for a roller cartridge; a support element attached to the main portion and providing internal stabilization to the supporting device; a mechanism providing motion to the articulating arm with respect to the main portion; and an attachment mechanism for suspending the supporting device via attachment to an external element. Other aspects are described and claimed.

A processing method for an additively manufactured article, the processing method including: accommodating an additively manufactured article containing metal and a medium made of metal in a barrel polishing device; and reducing a roughness of a surface of the additively manufactured article and applying a residual stress to the additively manufactured article by stirring the additively manufactured article and the medium, in which a surface of the medium includes a curved surface.