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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: 2022-02-18
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) on the other hand is labor-intensive, 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

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Experimental program
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Effect test

Embodiment Construction

[0084] 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.

[0085] 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.

[0086] A laser cutter (not shown) is also conceivable similarly.

[0087] image 3 The 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 material pr...

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Abstract

A computer-implemented method and device for operating a laser material processing machine (1, 2), wherein process parameters (x) are varied with the aid of Bayesian optimization until a result (y) of the laser material processing is sufficiently good, wherein the Bayesian optimization takes place with the aid of a data-based process model (GP), and it is taken into consideration during the variation of the process parameters (x) how probable it is that a variable (D) which characterizes a quality of the result (Y) is within predefinable boundaries (D0-[delta], D0+[delta]).

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] A method for operating a laser material processing machine by means of a Gaussian process model and Bayesian optimization is known from DE 102020205967.5 which has not been published beforehand. [0003] Drilling with laser radiation is a manufacturing method for producing boreholes in very different materials. Here, 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. [0004] The molten material is driven out of the borehole by the process-related explosively generated vapor pressure and the resulting large pressure gradi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/21B23K26/382B23K26/70
CPCB23K26/702B23K26/21B23K26/382G06N20/00B23K31/006B23K26/38B23K26/0622G06N7/01B23K26/40G06F17/18
Inventor A·克罗舍尔A·伊林A·米哈洛夫斯基H·利德尔布施J·维诺格拉德斯卡P·蒂吉尼亚努A·埃瓦齐
Owner ROBERT BOSCH GMBH