This cutting device is a device for obtaining a processed material by cutting off an end portion of a plate material by a first cutting blade and a second cutting blade which relatively approach each other, and includes: a first contact part and the first cutting blade which clamp a processed material portion of the plate material from front and back surfaces thereof; the second cutting blade and a second contact part which clamp an end material portion of the plate material from front and back surfaces thereof; and a drive part which causes the first cutting blade and the second cutting blade to start relative approach while maintaining a flat state where the processed material portion and the end material portion are on the same plane.

A machine for bending a thread-like material such as a pipe equipped with a laser or plasma cutting device aboard the machine and guide means for making said cutting device slide.

A conveying device (4) for conveying rolled bar segments, continuously exiting from a cutting shear (3), comprising at least two conveying channels (10, 11) for conveying the bar segments; at least one separation wall (8) separating a first conveying channel (10) from a second conveying channel (11); and at least one fixed partition (9), provided below the wall (8) and which separates the first channel (10) from the second channel (11); the fixed partition (9) is configured so that, at speed, when a rolled bar is deviated to pass from a direction towards the first channel to a direction towards the second channel, the tail of a first bar segment (30) advances in the first channel (10) by passing below the fixed partition (9), while the head of a second bar segment (31) after the first segment (30) advances in the second channel by passing above the fixed partition.

Devices for separating two workpiece parts, e.g., metal sheets, from one another are described and include a workpiece mounting, a lifting device arranged on one side of the workpiece mounting, and a counter-holder arranged on the opposite side of the workpiece mounting. The counter-holder can be transferred into a fixing state and into a releasing state. One of the workpiece parts to be separated from one another is provided as a removal part, the other as a remaining part. For separating the two workpiece parts, the removal part, which is acted upon by the lifting device and supported by the counter-holder, can be moved by means of the lifting device perpendicular to the mounting in relation to the remaining part by a removal movement. At least in the releasing state, the counter-holder forms a rigid abutment in the lifting direction for the removal part. The rigid abutment has the effect that the removal part is aligned parallel to the mounting. Machine-based systems include a processing unit for producing two workpiece parts from a sheet-like workpiece and a separating device as described herein. Methods for separating two workpiece parts of a sheet-like workpiece are carried out by means of the devices described herein and can be part of a machine-based process.