A method for projecting a production process for producing a workpiece with a desired formation of a characteristic feature of the workpiece is implemented by a computer system. Using the method, the desired formation of the characteristic feature of the workpiece is detected and compared with formations of the characteristic feature of preceding workpieces. The formations of the characteristic feature of the preceding workpieces are stored in a formation database and a production parameter that is stored in a parameter database. When a formation of the characteristic feature of a preceding workpiece that is relevant to the desired formation of the characteristic feature is established with reference to the definition of the production parameter, the production parameter is defined for the production process for producing the workpiece with the desired formation of the characteristic feature.

A method for projecting a production process for producing a workpiece with a desired formation of a characteristic feature of the workpiece is implemented by a computer system. Using the method, the desired formation of the characteristic feature of the workpiece is detected and compared with formations of the characteristic feature of preceding workpieces. The formations of the characteristic feature of the preceding workpieces are stored in a formation database and a production parameter that is stored in a parameter database. When a formation of the characteristic feature of a preceding workpiece that is relevant to the desired formation of the characteristic feature is established with reference to the definition of the production parameter, the production parameter is defined for the production process for producing the workpiece with the desired formation of the characteristic feature.

The present invention relates, in particular, to a forging hammer comprising a striker and a hydraulic linear drive that is coupled to the striker and is designed to drive the striker, which drive comprises a hydraulic circuit having a servo-motor hydro pump, a hydraulic cylinder, in particular a differential cylinder, which is fluidically connected downstream of the hydro pump via a directional valve module, and a servo-motor hydro generator, which is fluidically connected downstream of the hydraulic cylinder via the directional valve module, and comprising in addition a control unit configured at least for the simultaneous control of the hydro pump, the hydro generator and the directional valve module.

A hydraulic forming machine, includes a hydraulic cylinder with a piston guided in a cylinder tube and divides the cylinder tube into a first cylinder chamber, and a second cylinder chamber. A hydraulic circuit with a control unit for controlling the operation of the hydraulic cylinder includes a first hydraulic valve coupled to the control unit and is connected to the second cylinder chamber via the second hydraulic connection. The control unit regulates an opening width of the first hydraulic valve such that the first hydraulic valve is open in a first phase and the bear) is accelerated to a target speed in the first phase, while, in a following second phase the opening width of the first hydraulic valve is reduced to an inflow opening width, and the first hydraulic valve is closed during a return stroke running in the opposite direction to the working stroke.

A hydraulic forming machine, includes a hydraulic cylinder with a piston guided in a cylinder tube and divides the cylinder tube into a first cylinder chamber, and a second cylinder chamber. A hydraulic circuit with a control unit for controlling the operation of the hydraulic cylinder includes a first hydraulic valve coupled to the control unit and is connected to the second cylinder chamber via the second hydraulic connection. The control unit regulates an opening width of the first hydraulic valve such that the first hydraulic valve is open in a first phase and the bear) is accelerated to a target speed in the first phase, while, in a following second phase the opening width of the first hydraulic valve is reduced to an inflow opening width, and the first hydraulic valve is closed during a return stroke running in the opposite direction to the working stroke.

An impact tool includes a cylindrical body having an internal chamber, a piston assembly positioned within the internal chamber, the piston assembly having a piston base and a piston rod, an adapter arranged on the cylindrical body and having external threads, and a location tip assembly having an opening and having internal threads couplable to the adapter by engaging the external threads relative to the internal threads to create a threaded connection, the threaded connection allows the location tip assembly to be moved axially to a selectable height. An impact tip coupled to an end of the piston rod. Upon introduction of pressurized air within the internal chamber, the piston assembly moves axially towards the adapter causing the impact tip to move axially through the opening towards a surface resulting in impact with the surface to be dented.

An impact tool includes a cylindrical body having an internal chamber, a piston assembly positioned within the internal chamber, the piston assembly having a piston base and a piston rod, an adapter arranged on the cylindrical body and having external threads, and a location tip assembly having an opening and having internal threads couplable to the adapter by engaging the external threads relative to the internal threads to create a threaded connection, the threaded connection allows the location tip assembly to be moved axially to a selectable height. An impact tip coupled to an end of the piston rod. Upon introduction of pressurized air within the internal chamber, the piston assembly moves axially towards the adapter causing the impact tip to move axially through the opening towards a surface resulting in impact with the surface to be dented.

A method for radial forging a workpiece from an initial state to an end state, preferably follows a pass schedule multiple times from an initial state to an end state, by means of a radial forging machine with forging tools, preferably four forging tools, arranged around the periphery of the workpiece. The radial forging machine is designed and configured to perform the radial forging in at least three modes of operation, A) radial forging in spiral mode, B) radial forging in straight mode and C) radial forging in flat mode. The shaping of the workpiece from an initial state to an end state is a sequence of radial forging passes. At least two of the three different modes of operation are applied in succession.

A method for radial forging a workpiece from an initial state to an end state, preferably follows a pass schedule multiple times from an initial state to an end state, by means of a radial forging machine with forging tools, preferably four forging tools, arranged around the periphery of the workpiece. The radial forging machine is designed and configured to perform the radial forging in at least three modes of operation, A) radial forging in spiral mode, B) radial forging in straight mode and C) radial forging in flat mode. The shaping of the workpiece from an initial state to an end state is a sequence of radial forging passes. At least two of the three different modes of operation are applied in succession.

The underlying invention relates particularly to a hydraulic forming machine, more particularly a forging hammer, for workpiece forming, comprising a hydraulic cylinder for driving a ram configured for workpiece forming, and a hydraulic circuit configured for operation of the hydraulic cylinder, wherein the hydraulic circuit has an actuator with an adjustably variable volume flow via which a first hydraulic working chamber of the hydraulic cylinder, used to accelerate the ram during the execution of a working stroke (A) for workpiece forming, can be provided with hydraulic fluid. The hydraulic circuit is configured to adjust and vary the volume flow of the valve or actuator, depending on a setpoint speed (Vsoll) of the ram to be achieved in an acceleration phase of a working stroke (A), and to optimize the subsequent movement phase.