A method to form a gear for motor vehicles includes one or more of the following: placing a blank between a first tool member and a second tool member, each of the first tool member and the second tool member having a set of teeth; and moving the first tool member and the second tool member towards the blank while rotating the first tool member and the second tool member to form a gear with a set of teeth from the blank. Each tooth of the set of teeth has a topography that varies tooth-to-tooth.

A method to form a gear for motor vehicles includes one or more of the following: placing a blank between a first tool member and a second tool member, each of the first tool member and the second tool member having a set of teeth; and moving the first tool member and the second tool member towards the blank while rotating the first tool member and the second tool member to form a gear with a set of teeth from the blank. Each tooth of the set of teeth has a topography that varies tooth-to-tooth.

Stretch-rolling device (1) and stretch-rolling method for pressure-forming workpieces (W) by rolls, the stretch-rolling device (1) having: a pair of work rolls with two rolls (10), which can each be rotated about their roll axes and form a roll gap between them, the rolls (10) implement a plurality of stages (S1 to S4) in the axial direction, which are set up for the stepwise deformation of the workpieces (W) by the workpieces (W) passing through the stages (S1 to S4) successively; a manipulator (20) with a plurality of gripping devices (21) which are arranged on a working side (AS) of the pair of work rolls and are set up to grip the workpieces (W) and at an assigned stage to guide the workpieces through (S1 to S4) the roll gap in a feed/retraction direction; a support (30) arranged to temporarily support workpieces (W) and in cooperation with the manipulator (20) to transfer the workpieces to another gripping device (21), preferably the adjacent gripping device (21) of the next higher stage (S2 to S4).

A stretch rolling method and a stretch rolling unit can roll out any gripping ends and uses the narrowest possible installation space. In the stretch rolling method, a workpiece is successively fed to at least two passes of a stretch rolling unit of a gripping device, wherein the workpiece is rotated by 180° about an axis of rotation lying perpendicular to the main direction of extent of the workpiece between the first pass of the two passes and the second pass of the two passes.

A stretch rolling method and a stretch rolling unit can roll out any gripping ends and uses the narrowest possible installation space. In the stretch rolling method, a workpiece is successively fed to at least two passes of a stretch rolling unit of a gripping device, wherein the workpiece is rotated by 180° about an axis of rotation lying perpendicular to the main direction of extent of the workpiece between the first pass of the two passes and the second pass of the two passes.

Apparatus for attaching a sleeve comprising a coupling end to a steel wire. The apparatus comprises a pulling end arranged to connect to a sleeve to be attached to a steel wire, a pulling arrangement connected to the pulling end and being configured to pull a sleeve connected to the pulling end, a swaging arrangement comprising two opposed swaging rolls adapted to crimp the sleeve to a close press fit around a loose end of a steel wire. The apparatus further comprises a testing arrangement for testing the strain capacity of the attachment of a sleeve to a steel wire, the testing arrangement including a holding unit configured to effectively hold a portion of the steel wire fixed and allowing the pulling arrangement to pull the sleeve attached to a wire held fixed in the holding unit in order to verify the attachment.

A forging roll device includes, a pair of roll axes which are provided so that an axis center of each of the roll axes are parallel to each other and in which a die is attached to each of the roll axes; and a material holder/conveyer which conveys a held shaping target material between the pair of roll axes, wherein, each one of the pair of roll axes includes a plurality of die attaching surfaces positioned in a circumferential direction, and an outer circumferential surface between any of two of the plurality of die attaching surfaces in each one of the pair of roll axes is closer to a planar surface than a cylindrical surface with the axis center as the center.

The production method according to the invention for creating a thread in an elongated semi-finished product comprises the following steps: shaping, especially lengthwise rolling, of at least two lengthwise grooves into a blank and lengthwise rolling of a thread into the areas circumferentially delimited by the grooves. The distance from the beds of the grooves to the axis of the blank is smaller than the distance from the root of the thread to the axis.

The production method according to the invention for creating a thread in an elongated semi-finished product comprises the following steps: shaping, especially lengthwise rolling, of at least two lengthwise grooves into a blank and lengthwise rolling of a thread into the areas circumferentially delimited by the grooves. The distance from the beds of the grooves to the axis of the blank is smaller than the distance from the root of the thread to the axis.

A method to form a gear for motor vehicles includes one or more of the following: placing a blank between a first tool member and a second tool member, each of the first tool member and the second tool member having a set of teeth; and moving the first tool member and the second tool member towards the blank while rotating the first tool member and the second tool member to form a gear with a set of teeth from the blank. Each tooth of the set of teeth has a topography that varies tooth-to-tooth.