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Method for cutting workpiece part from plate-shaped workpiece

A technology for plate-shaped workpieces and workpieces, which is applied in the field of cutting out workpiece parts from plate-shaped workpieces, can solve the problems of changing process conditions and affecting the geometric shape of workpieces, and achieve the effects of reducing spontaneous combustion, high dimensional stability and quality

Active Publication Date: 2020-11-10
TRUMPF WERKZEUGMASCHINEN GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This adversely affects the workpiece geometry because the workpiece deforms
This can also have a negative effect on further cutting processes, e.g. due to changing process conditions

Method used

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  • Method for cutting workpiece part from plate-shaped workpiece

Examples

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Embodiment Construction

[0023] figure 1 A plate-shaped workpiece 12 is shown, from which a rectangular workpiece part 11 is to be cut out by means of a machining beam, in particular by means of a laser beam. The workpiece part 11 has an outer contour 21 and a plurality of inner contours 31 , 32 , 33 and 34 . Also shown in the workpiece 12 is a contour UA which is arranged remote from the workpiece part 11 .

[0024] The workpiece 12 is 20 mm thick structural steel in the example shown. The rectangular workpiece part 11 has four inner contours 31 , 33 , 34 , 32 in the form of a rectangle 31 , a triangle 33 , a circle 34 and a square 32 and is to be cut out by means of oxygen laser cutting.

[0025] For this purpose, in a first step, the inner contour 31 is checked by the not shown machine controller of the laser processing machine or in the programming software for executing the control program of the machine controller for the laser processing machine: Which of the inner contours 32 , 33 , 34 are ...

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PUM

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Abstract

The invention relates to a method for cutting out a workpiece part (11) from a plate-shaped workpiece (12) by means of a machining beam, and the method the steps: a) cutting out at least one inner contour (31) of the workpiece part (11); b) cutting out a section (AB) of an outer contour (21) of the workpiece part (11); c) cutting out at least one further inner contour (32) of the workpiece part (11).

Description

technical field [0001] The invention relates to a method for cutting out workpiece parts from a plate-shaped workpiece by means of a processing beam, in particular by means of a laser beam. Background technique [0002] During laser cutting of workpiece parts from plate-shaped workpieces, in the case of workpiece parts with inner contours, for example openings, the inner contour is usually first cut out and the resulting waste parts, also referred to as residues, fall through downwards. Exported from the cutting area of ​​the machine. The outer contour of the workpiece part is then cut to separate the workpiece part from the plate-shaped workpiece. [0003] When cutting thick workpieces, especially thick workpieces with a thickness greater than 3 mm, overheating of the workpiece in the region of the inner contour can occur in the case of closely adjacent inner contours due to the energy input of the laser beam. This adversely affects the workpiece geometry, since the workp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/38B23K26/70
CPCB23K26/38B23K26/702G05B2219/45044G05B19/4163
Inventor V·罗明格尔P·马赫F·塞普C·魏斯
Owner TRUMPF WERKZEUGMASCHINEN GMBH & CO KG