A forming device and a method for forming an inner rim of an annular round blank. The forming device has a lower tool with a movable die and an upper tool arranged opposite the lower tool along a working axis A. By means of the die, the annular round blank is moved out of a transport plane T and into a forming position U towards the upper tool and into the interior of a holding sleeve. Subsequently, the inner rim is formed with the aid of a forming tool. After forming, the annular round blank is moved out of the forming position U and back into the transport plane T by means of the lower tool and/or the upper tool. The forming device and the forming method can occur while the round blanks are being fed to an embossing station while being transported by a revolving table.

An apparatus for localized patterned surface hardening for light-weight alloys to increase wear resistance under lubricated contact is provided. The apparatus includes a first metallic structure and a second metallic structure. The second metallic structure includes a contact surface and is disposed in lubricated contact with the first metallic structure at the contact surface, wherein the second metallic structure is constructed with a lighter-than-steel material and wherein the contact surface includes a localized surface hardened pattern.

With a method for cutting a groove-shaped recess in a workpiece, a cutting tool for a machine tool is provided on a workpiece. The cutting tool is displaced into a cutting position, in which the cutting tool is in engagement with the workpiece. The cutting tool in engagement with the workpiece is displaced relative to the workpiece for cutting the groove-shaped recess. Upon cutting, a chip is produced with a predetermined maximum chip length that is less than a total length of the recess to be produced.

A turbine blade for the rotor of a gas turbine, having a blade airfoil, which has a blade airfoil main body with a first material and a blade airfoil tip with a second material, the second material being more resistant to oxidation than the first material. The composition of the second material is graduated at least in subregions. A method for producing the turbine blade includes: providing a main body of a turbine blade airfoil on a construction platform of a device for performing an additive method, the main body having a first material; applying a pulverous second material, which is different from the first material, in a certain amount; fusing the pulverous material by applying a high-energy beam; lowering the construction platform, repeating applying and fusing the pulverous material and of lowering the construction platform as many times as necessary to complete the tip of the blade airfoil.

A turbine blade for the rotor of a gas turbine, having a blade airfoil, which has a blade airfoil main body with a first material and a blade airfoil tip with a second material, the second material being more resistant to oxidation than the first material. The composition of the second material is graduated at least in subregions. A method for producing the turbine blade includes: providing a main body of a turbine blade airfoil on a construction platform of a device for performing an additive method, the main body having a first material; applying a pulverous second material, which is different from the first material, in a certain amount; fusing the pulverous material by applying a high-energy beam; lowering the construction platform, repeating applying and fusing the pulverous material and of lowering the construction platform as many times as necessary to complete the tip of the blade airfoil.

A method for machining a crankcase includes providing a machining device. The machining device comprises a mechanical machining unit and a cooling/rinsing system, which is configured to cool and/or rinse the mechanical machining unit or a surface which is to be machined. The method also includes creating a structure in a cylinder wall of a crankcase using the mechanical machining unit. The method also includes using a fluid stream of the cooling/rinsing system to reshape at least certain regions of the structure.

In order to provide a method for hardening a metal sheet material by means of which a particularly hard and scratch-resistant surface is produced on the metal sheet material, it is proposed that the method comprises the following: applying at least one peening stream to the metal sheet material, wherein at least one peening stream is applied to a front side of the metal sheet material and/or a rear side of the metal sheet material, respectively.

A gearbox is provided having a housing, a gear having a plurality of teeth operationally configured within the housing, and a laser peening device located within the housing and configured to perform active laser peening on a predetermined surface of the gear while the gear is rotated within the housing. A method of maintaining compressive residual stresses in a gear is provided, the method including operating a gearbox to rotate a gear within the gearbox and laser peening a predetermined surface of the gear with a laser peening device located within the gearbox.

A gearbox is provided having a housing, a gear having a plurality of teeth operationally configured within the housing, and a laser peening device located within the housing and configured to perform active laser peening on a predetermined surface of the gear while the gear is rotated within the housing. A method of maintaining compressive residual stresses in a gear is provided, the method including operating a gearbox to rotate a gear within the gearbox and laser peening a predetermined surface of the gear with a laser peening device located within the gearbox.

The present disclosure discloses a method for improving fatigue strength of a workpiece (100). The method comprises positioning the workpiece (100) in a punch and die assembly (102). Operating the punch and die assembly (102) one or more times to imprint surface features (2) on a portion of a surface of the workpiece (100), wherein the surface features (2) induces compressive residual stresses at a sub-surface level of the workpiece (100), and improves the fatigue strength of the workpiece (100).