Medium thickness stainless steel plate rapid perforating process

A stainless steel plate, fast technology, applied in the field of perforation, which can solve the problems of long perforation time, inability to cut through, and accumulation of slag

Active Publication Date: 2019-07-16
WUXI ZHOUXIANG LASER MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a perforation method for medium-thick stai

Method used

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Examples

Experimental program
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Embodiment Construction

[0027] The present invention will be further described below in conjunction with specific examples.

[0028] A rapid perforation process for a medium-thick stainless steel plate, characterized in that it comprises the following steps:

[0029] Step 1. Explosion depth

[0030] Use a cutting head with laser power ≥ 3000 watts for cutting, and set the height of the cutting head to 12-16mm from the surface of the plate; the duty cycle is between 55%-75%; the air pressure is 0.6Bar-1.2Bar oxygen; the frequency is set to 8-20Hz;

[0031] The focus position is between 50%-70% below the surface of the plate to be cut

[0032] The laser irradiation time is between 0.5S-1.5S;

[0033] Step 2. Purge the slag

[0034] Adjust the height of the cutting head to 10mm from the surface of the plate;

[0035] Use nitrogen with a pressure of 4Bar to purge the plate for 1S-2S;

[0036] Step 3. Perforation

[0037] Using a cutting head with a power ≥ 3000 watts, adjust the cutting head to a ...

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PUM

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Abstract

The invention provides a medium thickness stainless steel plate rapid perforating process. The process comprises following steps of firstly, deep blasting, wherein a cutting head with the laser powerbeing larger than or equal to 3000 watts is used for cutting, the height between the cutting head and the surface of a panel is set to range from 12 to 16 mm, the duty ratio ranges from 55 to 75%, theoxygen with the air pressure being 0.6 Bar to 1.2 Bar is adopted, the frequency ranges from 8 to 20 Hz, the focal position is below the surface of the board to be cut by 50 to 70%, and the laser radiation time ranges from 0.5 S to 1.5 S; secondly, slag purging, wherein the height of the cutting head is adjusted to the position away from the surface of the board by 10 mm, nitrogen with the pressure being 4 Bar is used, and the board is purged by 1S to 2S; and thirdly, perforating, wherein the cutting head with the power being larger than or equal to 3000 watts is used, the cutting head is adjusted to the position above the surface of the board by 16 mm, and cutting and perforating are carried out. The oxygen deep blasting is used, the material is carbonized, the nitrogen with the high pressure is used for blowing off carbonized slag, the too much surface slag stacking caused by long perforating time can be greatly reduced, after perforating, cutting connection is stable, and cutting stability is ensured.

Description

technical field [0001] The invention relates to the field of perforation, in particular to a rapid perforation process for medium-thick stainless steel plates. Background technique [0002] The original piercing process takes too long to pierce a thick plate, the accumulation of slag on the surface of the plate is too high, the sensor data of the cutting head is distorted, and the cutting head will vibrate at the moment of starting, which will cause the focus position to fluctuate too much up and down. After the puncture action is completed, the cutting height and focus position are unstable at the moment when the cutting is started, and in severe cases, it may not even cut through. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for piercing medium-thick stainless steel plates, which can solve the problems of long piercing time, accumulation of slag, and unstable cutting start, which cannot be cut throu...

Claims

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Application Information

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IPC IPC(8): B23K26/382
CPCB23K26/382
Inventor 徐旦冯伟伟
Owner WUXI ZHOUXIANG LASER MACHINERY
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