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Method and device for operating laser material processing machine

A technology of laser materials and processing machines, which is applied in laser welding equipment, metal processing equipment, welding equipment, etc., and can solve problems such as evaluation costs

Pending Publication Date: 2021-11-30
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since many workpieces or components are required for these experiments on the one hand, and the evaluation (preparation of cross-sections for measuring the weld seam geometry) is also complex, it is desirable to reduce the number of required attempts to a minimum

Method used

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  • Method and device for operating laser material processing machine
  • Method and device for operating laser material processing machine
  • Method and device for operating laser material processing machine

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0071] figure 1 The structure of the laser drilling machine 1 is schematically shown. The control signal A is provided by the control logic 40 to control the laser light 10a. A laser beam is incident on the material block 12 , which produces a bore hole 11 in the material block.

[0072] figure 2 The structure of the laser welding machine 2 is schematically shown. Here too, an actuation signal A is provided by the actuation logic 40 in order to actuate the laser light 10b. The laser beam impinges on the two material blocks 13 , 14 and produces a weld seam 15 there.

[0073] A laser cutter (not shown) is also conceivable in a similar manner.

[0074] image 3The structure of the test stand 3 for determining the optimum process parameter x is schematically shown. The current process parameter x is provided by the parameter memory P via the output interface 4 of the laser material processing machine (eg laser drilling machine 1 or laser welding machine 2 ). The laser ma...

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Abstract

The invention relates to a computer-implemented method and device for operating a laser material processing machine (1, 2), in which an estimation result (ysim) which characterizes how good an actual result (yexp) of the laser material processing is determined from a predefined process parameter (x), and in which the process parameter (x) is varied by means of Bayesian optimization using a data-based model, until the actual result (yexp) of the laser material processing is sufficiently good.

Description

technical field [0001] The invention relates to a method, a test stand, a computer program and a machine-readable storage medium for operating a laser material processing machine. Background technique [0002] Drilling with laser radiation is a manufacturing method for producing boreholes in very different materials. In this case, for example, a pulsed and focused laser beam is applied to the workpiece. Due to the very high intensity, the absorbed laser energy leads to a pulse-like, very rapid heating of the workpiece material, which leads to melt formation and also to partial evaporation within a short time and very locally. [0003] The molten material is driven out of the borehole by the process-related explosively generated vapor pressure and the resulting large pressure gradient, or by an externally conveyed gas flow. At particularly high intensities, which are achieved, for example, by using laser radiation with ultrashort laser pulses, the evaporation fraction is gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/24B23K26/38B23K26/382B23K26/70
CPCB23K26/24B23K26/38B23K26/382B23K26/702B23K26/21B23K31/006B23K26/03B23K31/125
Inventor A·K·戴斯A·克罗歇尔A·伊林A·米哈洛夫斯基A·莱斯P·甘特尔P·S·拜罗伊特S·卡尔格
Owner ROBERT BOSCH GMBH