Multi-part machine frame (12) for a, preferably percussive, forging machine, preferably a forging hammer (10), for forging workpieces, a) comprising at least two prefabricated frame parts (14, 15, 16) which are formed separately from each other, rest against each other in at least one or at least two support areas (65, 66) and are mutually supported and are pretensioned against each other with a set or adjustable pretension by means of pre-tensioning means, preferably a wire rope, and are thereby pressed onto each other in the one or more support area(s) (65, 66) and/or are connected to one another in a force-fitting manner, b) in which in the support area or at least one or each of the at least two support areas (65, 66) between two frame parts at least two pairs of abutting support surfaces (45A and 55A, 45B and 55B, 46A and 56A, 46B and 56B) are formed, which are separated by free surfaces (45C and 55C, 46D and 56D) arranged therebetween, between which an intermediate space is formed, c) wherein the support area(s) or the at least two pairs of support surfaces in the associated support area(s) constitute or act as a positive and/or self-positioning connection.

Multi-part machine frame (12) for a, preferably percussive, forging machine, preferably a forging hammer (10), for forging workpieces, a) comprising at least two prefabricated frame parts (14, 15, 16) which are formed separately from each other, rest against each other in at least one or at least two support areas (65, 66) and are mutually supported and are pretensioned against each other with a set or adjustable pretension by means of pre-tensioning means, preferably a wire rope, and are thereby pressed onto each other in the one or more support area(s) (65, 66) and/or are connected to one another in a force-fitting manner, b) in which in the support area or at least one or each of the at least two support areas (65, 66) between two frame parts at least two pairs of abutting support surfaces (45A and 55A, 45B and 55B, 46A and 56A, 46B and 56B) are formed, which are separated by free surfaces (45C and 55C, 46D and 56D) arranged therebetween, between which an intermediate space is formed, c) wherein the support area(s) or the at least two pairs of support surfaces in the associated support area(s) constitute or act as a positive and/or self-positioning connection.

A method for material forming, by means of a movable impact head and tool combination and a drive unit includes moving the drive unit to provide kinetic energy to the impact head and tool combination, for the impact head and tool combination to strike a work material, so as to form the work material. A return movement of the movable impact head and tool combination, away from the work material, after the strike of the work material by the impact head and tool combination, is dampened.

A hammer punch tool having a guide and a punch that is slidably coupled to the guide. The guide has a force transfer surface and a cavity accessible through an opening in the guide. The punch has a portion that is slidably received within the cavity of the guide through the opening in the guide. The guide slides relative to the punch between a reset position of the guide (or extended position of the punch), in which a portion of the punch engages the guide to retain at least a portion of the punch within the cavity, and a hammer position of the guide (or retracted position of the punch), in which the force transfer surface of the guide engages the punch. A method of forming material with the hammer punch tool by striking the punch with the guide.

A hammer punch tool having a guide and a punch that is slidably coupled to the guide. The guide has a force transfer surface and a cavity accessible through an opening in the guide. The punch has a portion that is slidably received within the cavity of the guide through the opening in the guide. The guide slides relative to the punch between a reset position of the guide (or extended position of the punch), in which a portion of the punch engages the guide to retain at least a portion of the punch within the cavity, and a hammer position of the guide (or retracted position of the punch), in which the force transfer surface of the guide engages the punch. A method of forming material with the hammer punch tool by striking the punch with the guide.

The present invention relates to an additive manufacturing system and its methods. The system includes a material conveyor, an energy source, and a micro-forging device. The material conveyor is configured to convey material. The energy source is configured to direct an energy beam toward the material, the energy beam fuses at least a portion of the material to form a solidified portion. The micro-forging device is movable along with the material conveyor for forging the solidified portion, wherein the micro-forging device comprises a first forging hammer and a second forging hammer, the first forging hammer is configured to impact the solidified portion to generate a first deformation, and the second forging hammer is configured to impact the solidified portion to generate a second deformation greater than the first deformation.

A method and a device are provided for manufacturing spokes from a wire material, in particular for at least partially muscle-powered two-wheeled vehicles. The spokes include a spoke shaft having at least two shaft sections. The shaft sections differ in at least one cross-section. For shaping the cross-sections, the wire material is reshaped at least in sections by means of a shaping tool. The relative position of the wire material relative to the shaping tool is varied in the axial direction during reshaping. For shaping the cross-sections in the two shaft sections the relative position of the wire material relative to the shaping tool is varied by way of different positioning movements.

A method and a device are provided for manufacturing spokes from a wire material, in particular for at least partially muscle-powered two-wheeled vehicles. The spokes include a spoke shaft having at least two shaft sections. The shaft sections differ in at least one cross-section. For shaping the cross-sections, the wire material is reshaped at least in sections by means of a shaping tool. The relative position of the wire material relative to the shaping tool is varied in the axial direction during reshaping. For shaping the cross-sections in the two shaft sections the relative position of the wire material relative to the shaping tool is varied by way of different positioning movements.

A forging head for additive manufacturing, comprising a base portion and a forging portion. The forging portion extends from the base portion for forging a cladding layer during formation of the cladding layer by additive manufacturing. The forging head further comprising a through hole which is formed through the base portion and the forging portion, for at least one of an energy bean and an additive material to pass through during formation of the cladding layer.

A forging head for additive manufacturing, comprising a base portion and a forging portion. The forging portion extends from the base portion for forging a cladding layer during formation of the cladding layer by additive manufacturing. The forging head further comprising a through hole which is formed through the base portion and the forging portion, for at least one of an energy bean and an additive material to pass through during formation of the cladding layer.