Processes and devices for beam processing of plate-shaped or tubular workpieces

A beam processing device with a processing beam guided by a beam head, wherein the beam processing device comprises an electronic control device for controlling beam processing of a plate-shaped or tubular workpiece to produce a workpiece part from the workpiece, leaving a residual grid, and wherein the electronic control device comprises:

• at least one processor;
• and
• at least one non-transitory machine readable storage medium coupled to the at least one processor having machine-executable instructions stored thereon that, when executed by the at least one processor, cause the at least one processor to perform operations comprising:
• a) carrying out a plurality of cutting procedures for producing a cutting gap along a respective portion of a plurality of portions of a cutting line that extends at least partially along a contour of the workpiece part to be produced from the workpiece, wherein each of the plurality of cutting procedures comprises:
• moving a beam head for guiding the processing beam above the workpiece, wherein the processing beam is guided along the cutting line, and wherein the processing beam has a first power density configured such that the workpiece is cut through,
• b) carrying out at least one finishing procedure for finishing the workpiece along at least one finishing line corresponding to at least one part of the cutting gap, during which the workpiece part is not completely cut out, a finishing procedure of the at least one finishing procedure comprising:
• moving the beam head over the workpiece, wherein the processing beam is guided along a finishing line, wherein the processing beam has a second power density smaller than the first power density and configured such that the workpiece is not cut through, and wherein the workpiece is irradiated by the processing beam, along the finishing line corresponding to a part of the cutting gap, in at least one of a region containing a first cutting edge on the workpiece part to be produced or a region containing a second cutting edge on the residual grid to be produced, the first cutting edge and the second cutting edge defining the part of the cutting gap,
• wherein the plurality of cutting procedures comprises a first cutting procedure for creating a first part of the cutting gap from a first cutting position to a second cutting position and a second cutting procedure for creating a second part of the cutting gap from the second cutting position to a third cutting position, the second cutting procedure being immediately after the first cutting procedure among the plurality of cutting procedures, and a first finishing procedure is performed after the first cutting procedure and before the second cutting procedure and along a first finishing line from a first finishing position to a second finishing position, the first finishing line corresponding to the created first part of the cutting gap, and the second cutting procedure is performed after a completion of the first finishing procedure.

A non-transitory machine readable storage medium coupled to at least one processor having machine-executable instructions stored thereon that, when executed by the at least one processor, cause the at least one processor to perform operations for controlling beam processing of a plate-shaped or tubular workpiece to produce a workpiece part from the workpiece, leaving a residual grid, the operations comprising:

• a) carrying out a plurality of cutting procedures for producing a cutting gap along a cutting line that extends at least partially along a contour of a workpiece part to be produced from the workpiece, wherein each of the plurality of cutting procedures comprises:
• moving a beam head for guiding a processing beam above the workpiece, wherein the processing beam is guided along a respective portion of a plurality of portions of the cutting line, and wherein the processing beam has a first power density configured such that the workpiece is cut through,
• b) carrying out at least one finishing procedure for finishing the workpiece along at least one finishing line corresponding to at least one part of the cutting gap, during which the workpiece part is not completely cut out, a finishing procedure of the at least one finishing procedure comprising:
• moving the beam head over the workpiece, wherein the processing beam is guided along a finishing line, wherein the processing beam has a second power density smaller than the first power density and configured such that the workpiece is not cut through, and wherein the workpiece is irradiated by the processing beam, along the finishing line corresponding to a part of the cutting gap, in at least one of a region containing a first cutting edge on the workpiece part to be produced or a region containing a second cutting edge on the residual grid to be produced, the first cutting edge and the second cutting edge defining the part of the cutting gap,
• wherein the plurality of cutting procedures comprises a first cutting procedure for creating a first part of the cutting gap from a first cutting position to a second cutting position and a second cutting procedure for creating a second part of the cutting gap from the second cutting position to a third cutting position, the second cutting procedure being immediately after the first cutting procedure among the plurality of cutting procedures, and a first finishing procedure is performed after the first cutting procedure and before the second cutting procedure and along a first finishing line from a first finishing position to a second finishing position, the first finishing line corresponding to the created first part of the cutting gap, and the second cutting procedure is performed after a completion of the first finishing procedure.