A tool configured to form a groove in a pipe includes a housing, a spindle rotatable about a drive axis, a die shaft defining a die shaft axis, a die rotatably coupled to the die shaft about a die axis that is offset relative the die shaft axis, the die configured to form a groove into the pipe, and

a drive assembly. The drive assembly includes a spindle drive portion configured to rotate the spindle about the drive axis and thereby rotate the tool with respect to the pipe, and a die shaft drive portion configured to rotate the die shaft to vary a distance between the die axis and the drive axis.

A method for cold working pipe elements use two or more cams, each having a gear which meshes with a pinion to turn all of the cams. Each cam has a cam surface with a region of increasing radius and may also have a region of constant radius extending around a cam body. Each cam may also have a traction surface extending around a cam body. The method includes contacting the pipe element with a plurality of cam surfaces simultaneously at a plurality of locations on the pipe element and rotating the pipe element, thereby simultaneously rotating the cam surfaces. Each cam surface engages the pipe element with an increasing radius and a region of constant radius if present to deform the pipe element and form the groove.

A method for cold working pipe elements use two or more cams, each having a gear which meshes with a pinion to turn all of the cams. Each cam has a cam surface with a region of increasing radius and may also have a region of constant radius extending around a cam body. Each cam may also have a traction surface extending around a cam body. The method includes contacting the pipe element with a plurality of cam surfaces simultaneously at a plurality of locations on the pipe element and rotating the pipe element, thereby simultaneously rotating the cam surfaces. Each cam surface engages the pipe element with an increasing radius and a region of constant radius if present to deform the pipe element and form the groove.

A pipe groover can include a base assembly; a spindle plate secured to the base assembly but configured to rotate about an axis with respect to the base assembly; and a plurality of roller assemblies secured to the spindle plate, each of the roller assemblies including a pair of rollers configured to form a groove in a pipe proximate to an end of the pipe.

A pipe groover can include a base assembly; a spindle plate secured to the base assembly but configured to rotate about an axis with respect to the base assembly; and a plurality of roller assemblies secured to the spindle plate, each of the roller assemblies including a pair of rollers configured to form a groove in a pipe proximate to an end of the pipe.

A tool includes an upper tool having a clamping shaft and an upper main body that lie on a common positioning axis, a processing tool opposite the clamping shaft that has at least one processing edge that extends at least partially along a holding-down surface of the main upper body, a lower tool having a lower main body with a rest surface for the workpiece and a lower positioning axis oriented perpendicular to the rest surface, a counter tool body on the lower main body, the counter tool body having a counter roller with at least one counter edge opposite the at least one processing edge of the processing tool, and a processing device adjacent to the at least one counter edge that has at least one curved counter surface oriented in the longitudinal direction of the processing edge of the processing tool.

A tool includes an upper tool having a clamping shaft and an upper main body that lie on a common positioning axis, a processing tool opposite the clamping shaft that has at least one processing edge that extends at least partially along a holding-down surface of the main upper body, a lower tool having a lower main body with a rest surface for the workpiece and a lower positioning axis oriented perpendicular to the rest surface, a counter tool body on the lower main body, the counter tool body having a counter roller with at least one counter edge opposite the at least one processing edge of the processing tool, and a processing device adjacent to the at least one counter edge that has at least one curved counter surface oriented in the longitudinal direction of the processing edge of the processing tool.

A device for cold working pipe elements has two or more cams, each having a gear which meshes with a pinion to turn all of the cams. Each cam has a cam surface with a region of increasing radius and may have a region of constant radius extending around a cam body. Each cam also has a traction surface extending around a cam body. A region of reduced radius in each cam surface is aligned with a gap in the traction surface of each cam. The regions of reduced radius and gaps provide clearance for insertion and removal of the pipe element between the cams to form a circumferential groove when the cams are rotated.

A device for cold working pipe elements has two or more cams, each having a gear which meshes with a pinion to turn all of the cams. Each cam has a cam surface with a region of increasing radius and may have a region of constant radius extending around a cam body. Each cam also has a traction surface extending around a cam body. A region of reduced radius in each cam surface is aligned with a gap in the traction surface of each cam. The regions of reduced radius and gaps provide clearance for insertion and removal of the pipe element between the cams to form a circumferential groove when the cams are rotated.

A tool for manufacturing blanks and a process for stacking and destacking the blanks in a production line are provided. The tool is incorporated into a blanking die used to trim a metal sheet and form the blanks. When the blanks are stacked, the destacking formations provide gaps between the adjacent blanks. The gaps provide an entry to blast air and thus reliably separate the blanks for pick up, so that only one blank is picked up at a time. The tool includes a deforming unit that has an engagement element for pressing deformations into the metal sheet. The deformations are pressed adjacent to at least one edge of the metal sheet so that when the metal sheet is trimmed, and the blanks are stacked, they are spaced by the deformations by adjacently stacked blanks.