Abstract: According to a method for pressing a green compact from a sintering powder for producing a gear having a first track and a second track, wherein a first helical toothing with a first helix angle and a first diameter is produced as the first track and a second helical toothing with a second helix angle and a second diameter is produced as the second track, the sintering powder is filled into a mold cavity of a die, and then the sintering powder is pressed to form the green compact with an upper stamp and a lower stamp, and wherein the first and the second helical toothings are produced having the same pitch height.

Abstract: A method for producing a sintered component, in particular an annular sintered component, with a toothing, having teeth with tooth roots, tooth tips and tooth flanks, includes the steps of pressing a powder to form a green compact, sintering the green compact, and hardening the sintered component, wherein after sintering, the tooth flanks and possibly the tooth tips are post-compacted and subsequently undergo post-processing by machining, and wherein a transition region between the tooth flanks and the tooth roots has an undercut design, and post-compaction of the tooth flanks is carried out only up to this transition region.

Abstract: A device for producing a gear green compact from a powder includes a die, an upper stamp, and a lower stamp, wherein the die has at least one helical toothing on an inner lateral surface, which helical toothing extends only over a partial area of the circumference of the inner lateral surface, and which has a first helix angle, wherein, adjoining the first helical toothing in a circumferential direction, one toothed edge surface is formed on each side, both of which have a second helix angle, wherein at least one of the second helix angles of the die is unequal to the first helix angle of the helical toothing of the die.

Abstract: The invention relates to an assembly (1) comprising a first component (2) with an internal toothing (4) and a second component (3) with an external toothing (6), wherein the two components (2, 3) can be connected to one another by a press fit, which is formed between the internal and the external toothing (4, 6), and wherein the internal and the external toothing (4, 6) each comprise a plurality of teeth (5, 7). The teeth (5) of the internal toothing (4) of the first component (2) and/or the teeth (7) of the external toothing (6) of the second component (3) comprise recesses (13, 15) along the tooth flanks (12, 14).

Abstract: The invention relates to an assembly (1) at least comprising a first metal component (2) having a first surface region (5) and a second metal component (3) having a second surface region (7), wherein the two surface regions (5, 7) face each other, and the first and the second component (2, 3) are connected cohesively together at least in a subregion of the two surface regions (5, 7), and wherein at least one of the two metal components (2, 3) is a sintered component, wherein that surface region (7) of the sintered component that has the cohesive connection has a higher density than the adjoining further surface region of the sintered component.

Abstract: A method and a device stretches and forms a foil blank and a product is produced by this method. The foil blank is stretched in at least one direction and slides along in at least one direction during the deformation. The sliding along may be controlled, and the clamping force and the clamping speed may be regulated.

Abstract: The invention relates to a synchronizer hub (3) for a gearbox synchronization device (1) in a manual gearbox, comprising a base body (29) having a radial outer peripheral surface (30) and two axial end faces (31, 32) adjoining the circumferential surface (30), wherein an external tooth system (19) with radially outward pointing teeth (33) is arranged on the circumferential surface (30), interrupted by at least one recess (21), and with a annular groove (25), arranged in one of the end faces (32) and underneath the external tooth system (19), wherein the annular groove (25) is also interrupted by the at least one recess (21). Several segments (34) that extend in the radial direction into the area of the annular groove (25) and partially cover it are arranged on the axial end face (32).

Abstract: The invention relates to an assembly (1) at least comprising a first metal component (2) having a first surface region (5) and a second metal component (3) having a second surface region (7), wherein the two surface regions (5, 7) face each other, and the first and the second component (2, 3) are connected cohesively together at least in a subregion of the two surface regions (5, 7), and wherein at least one of the two metal components (2, 3) is a sintered component, wherein that surface region (7) of the sintered component that has the cohesive connection has a higher density than the adjoining further surface region of the sintered component.

Abstract: An apparatus and a method for driving a solenoid valve, which includes a coil and a movable armature. To move the armature, current and/or voltage is applied to the coil in a clocked manner. By varying the driving, the solenoid valve can be operated optionally as a control valve or as a relief valve.