A method and a correspondingly configured bending machine are described, wherein a setting of the bending machine is first calculated on the basis of a mathematical model and subsequently corrected on the basis of stored data sets on previous bending operations and their correction values.

A method and a correspondingly configured bending machine are described, wherein a setting of the bending machine is first calculated on the basis of a mathematical model and subsequently corrected on the basis of stored data sets on previous bending operations and their correction values.

A system includes a plurality of forming roller sets comprising an inner forming roller and an outer forming roller, each inner forming roller rotatable about an inner forming roller axis, each outer forming roller rotatable about an outer forming roller axis, each forming roller set being adjustable between an engagement configuration and a disengagement configuration, each forming roller set forming a profile on the ring component based on a forming roller set profile of the forming roller set, the system also including an actuating unit which controls the engagement and a disengagement of the forming roller sets with the ring component.

A carrier for seam formation and sealing comprising a roller assembly having at least one roller; a housing for holding the roller assembly; a fastening member for mounting the roller to the housing; and the fastening member is an interchangeable mechanism.

A carrier for seam formation and sealing comprising a roller assembly having at least one roller; a housing for holding the roller assembly; a fastening member for mounting the roller to the housing; and the fastening member is an interchangeable mechanism.

A bending machine is described, which comprises an upper roller and a lower roller, as well as at least one side roller. The side roller is held in a rocker arm, wherein the first end of which is fixed to a movable supporting member, and the second end of which can be supported in a first position relative to the upper and lower rollers. The rocker arm can be moved to a second position by means of the movable supporting member and fixed there with the second end.

A method of producing a drum including providing at least one source of at least one material, producing a preform from the at least one material, bending edges of the preform into a rolled preform and joining the edges to form a tubular member, performing an expansion operation and/or a contraction operation on the tubular member to achieve at least one desired diameter of the drum, heat-treating of the tubular member, forming a plurality of engagement elements in the tubular member, machining the tubular member, heat-treating the drum to achieve a desired hardness, assembling at least one secondary component with the tubular member, and balancing the drum.

A method of aligning a flat or profiled metal sheet with preformed notches on the two sides of the metal sheet when the sheet enters into a bender or folding machine directly from a roll forming machine linked or joined to the folder. The metal sheet has to be effectively aligned on the folder before folding to avoid potential damages to the metal sheet of not being properly squared or angled on bending while reducing the times to produce the folded products. Moreover, this method according to the invention allows the metal sheet to feed directly into the folder from the rollformer without having to pass through an intermediary transfer table or aligning device/machine before entering the folder for folding or manual alignment in the folder.

A method of aligning a flat or profiled metal sheet with preformed notches on the two sides of the metal sheet when the sheet enters into a bender or folding machine directly from a roll forming machine linked or joined to the folder. The metal sheet has to be effectively aligned on the folder before folding to avoid potential damages to the metal sheet of not being properly squared or angled on bending while reducing the times to produce the folded products. Moreover, this method according to the invention allows the metal sheet to feed directly into the folder from the rollformer without having to pass through an intermediary transfer table or aligning device/machine before entering the folder for folding or manual alignment in the folder.

A roll stamping apparatus includes sets of rollers rotating while facing each other so as to press opposite surfaces of a material which is continuously supplied to move between the rollers; and molding portions having a stamping structure applied to outer surfaces of the sets of rollers so as to mold the material, wherein a plurality of sets of rollers are disposed in a movement direction of the material, the molding portions of the sets of rollers are formed to sequentially change a cross section of the material in the movement direction of the material, wherein at least one of the sets of rollers before a final set of rollers through which the material finally passes is a set of over-molding rollers having molding portions of which a length in a circumferential direction is longer than a length of the molding portions of the final set of rollers.