An apparatus for steering a metal pipe during a roll grooving process including a clamp to be secured to a static structure of a grooving press spaced apart from a rotating cylinder of the grooving press, a pair of spaced parallel rods slidably disposed through spaced openings of the clamp, a handle affixed to first ends of the pair of spaced parallel rods distal from the rotating cylinder, and a guiding tool affixed to second ends of the pair of spaced parallel rods proximate to the rotating cylinder carrying spaced rollers adapted to contact an outer surface of a metal pipe during a roll grooving process to apply a force against the metal pipe. A method for applying a force against a metal pipe during a roll grooving process.

An apparatus for steering a metal pipe during a roll grooving process including a clamp to be secured to a static structure of a grooving press spaced apart from a rotating cylinder of the grooving press, a pair of spaced parallel rods slidably disposed through spaced openings of the clamp, a handle affixed to first ends of the pair of spaced parallel rods distal from the rotating cylinder, and a guiding tool affixed to second ends of the pair of spaced parallel rods proximate to the rotating cylinder carrying spaced rollers adapted to contact an outer surface of a metal pipe during a roll grooving process to apply a force against the metal pipe. A method for applying a force against a metal pipe during a roll grooving process.

A driven member of a metal peening machine is disclosed. The metal peening machine is configured to drive the driven member into contact with a work surface of a metal workpiece to deform the metal workpiece. The driven member includes a shaft with an impact end. At least one of a plurality of impact features, an impact feature with a non-flat impact surface, a non-round impact feature, and an asymmetrical impact feature is coupled to and protrudes from the impact end of the shaft. The at least one of the plurality of impact features, the impact feature with a non-flat impact surface, the non-round impact feature, and the asymmetrical impact feature defining at least one impact surface to be driven into contact with the work surface of the metal workpiece.

A driven member of a metal peening machine is disclosed. The metal peening machine is configured to drive the driven member into contact with a work surface of a metal workpiece to deform the metal workpiece. The driven member includes a shaft with an impact end. At least one of a plurality of impact features, an impact feature with a non-flat impact surface, a non-round impact feature, and an asymmetrical impact feature is coupled to and protrudes from the impact end of the shaft. The at least one of the plurality of impact features, the impact feature with a non-flat impact surface, the non-round impact feature, and the asymmetrical impact feature defining at least one impact surface to be driven into contact with the work surface of the metal workpiece.

A spinning forming method includes a first forming step and a second forming step, in each of which a plate fixed to a main shaft is formed while being rotated. In the first forming step, a processing tool is brought into contact with a first main surface of the plate to form a first level-changing portion extending from the first main surface toward a second main surface. In the second forming step, the processing tool is brought into contact with the second main surface at an outer peripheral side of the first level-changing portion to form a second level-changing portion extending in an opposite direction to the first level-changing portion.

A spinning forming method includes a first forming step and a second forming step, in each of which a plate fixed to a main shaft is formed while being rotated. In the first forming step, a processing tool is brought into contact with a first main surface of the plate to form a first level-changing portion extending from the first main surface toward a second main surface. In the second forming step, the processing tool is brought into contact with the second main surface at an outer peripheral side of the first level-changing portion to form a second level-changing portion extending in an opposite direction to the first level-changing portion.

A plastic forming machine including a fixed pole; a movable pole; a shaft for fixing a raw material; an electric motor for rotating the shaft; a linear movement system enabling the movement of the movable pole; a first pressing rod positioned on lower surface of the movable pole, includes a first arm extending parallel to the movable pole, a second arm extending vertical to the first arm, and a third arm, having a first end and second end, connected to the first arm from its second end; a second pressing rod having a first and a second end, is connected slidingly to the first arm from its first end; at least one actuator connected to the first arm; a contact end connected to the second ends of the second pressing rod and the third arm; at least one control system for controlling the linear movement mechanism and the actuator.

A steel barrel rotation assembly for rotating a steel barrel for manufacturing a steelpan drum includes a base that is positionable on a horizontal support surface, a plurality of legs extending upwardly from the base and a mounting disk attached to the plurality of legs. A rotation disk is rotatably disposed on the mounting disk and a steel barrel can be positioned on the rotation disk. A drive unit is coupled to the mounting disk and the drive unit mechanically engages the rotation disk. The drive unit rotates the rotation disk when the drive unit is turned on to rotate the steel barrel. A plurality of holders is each of the holders is slidably disposed on the rotation disk. Each of the holders extends upwardly from the rotation disk to engage the steel barrel for securing the steel barrel on the rotation disk.

A steel barrel rotation assembly for rotating a steel barrel for manufacturing a steelpan drum includes a base that is positionable on a horizontal support surface, a plurality of legs extending upwardly from the base and a mounting disk attached to the plurality of legs. A rotation disk is rotatably disposed on the mounting disk and a steel barrel can be positioned on the rotation disk. A drive unit is coupled to the mounting disk and the drive unit mechanically engages the rotation disk. The drive unit rotates the rotation disk when the drive unit is turned on to rotate the steel barrel. A plurality of holders is each of the holders is slidably disposed on the rotation disk. Each of the holders extends upwardly from the rotation disk to engage the steel barrel for securing the steel barrel on the rotation disk.

The invention relates to a method and a device for spin forming, wherein a workpiece is set in rotation by means of a spindle and at least one outer roller is positioned at an outer side of the workpiece. With material thinning, an axially extending lateral region of the workpiece is shaped. According to the invention, it is provided that at least one inner roller is positioned at an inner side of the workpiece by means of an inner support, which is displaceable axially and radially relative to the axis of rotation independently of the outer roller. By means of a CNC control unit, the inner support with the inner roller and an outer support with the outer roller are displaced individually, wherein there is formed at the lateral region a defined wall thickness profile with different wall thicknesses between the at least one outer roller and the at least one inner roller.