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Method for laser cutting of 0.5 mm stainless steel

A laser cutting and stainless steel technology, applied in laser welding equipment, welding/welding/cutting items, manufacturing tools, etc., can solve the problems of work hardening affecting the smooth progress of subsequent processes, missing cutting process windows, and chips not easy to break, etc., to achieve cost Low, fast cutting speed, long life effect

Inactive Publication Date: 2021-01-15
GUANGDONG UNIV OF PETROCHEMICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The work hardening phenomenon caused by the previous feed or the previous process seriously affects the smooth progress of the subsequent process
[0004] The traditional method of cutting stainless steel has many disadvantages: large cutting force, high cutting temperature, not easy to break chips, easy wear of tools, large linear expansion coefficient
Based on the above reasons, it is of great significance and practical value to use other cutting methods to obtain high-quality slits. At present, there is no optimal cutting process window for stainless steel with this plate thickness.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] Purchase stainless steel plates with a thickness of 0.5mm, remove oil and dust on the surface, position the plates, debug laser related equipment, check whether the cutting head lens needs to be replaced, whether the cutting nozzle is damaged, adjust the defocus, set the manipulator parameters before cutting, and prepare nitrogen , the cutting process parameters are: cutting speed is 15m / min; laser power is 1.5kW; gas pressure is 1.0MPa; defocus is -0.5mm; working distance is 0.8mm; cutting nozzle diameter is 1.0mm; cutting gas is nitrogen . Prevent the cutting head from hitting obstacles during the cutting process, and keep away from flammable objects during the cutting process to ensure equipment and personal safety.

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PUM

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Abstract

The invention relates to a method for laser cutting of a 0.5 mm stainless steel. The method comprises the following steps: (1) removing greasy dirt and dust on the surface of stainless steel, and keeping the surface of the stainless steel smooth; and (2) cutting a 0.5 mm stainless steel panel by a ProCutter laser cutting gun, wherein the technological parameters are as follows: the cutting speed is 14-16 m / min; the laser power is 1-2kW; the gas pressure is 1-2 MPa; the defocusing amount is -1-0 mm; the working distance is 0.6 to 1.0 mm; the diameter of a cutting nozzle is 0.8 to 1.2 mm; and the cutting gas is nitrogen. The method is stable in process, has repeatability, is safe, stable and reliable, and a kerf is smooth, level, free of adhering slag and good in quality.

Description

technical field [0001] The invention relates to a method for cutting stainless steel, in particular to a method for laser cutting 0.5mm stainless steel. Background technique [0002] 304 stainless steel is the most widely used chromium-nickel stainless steel. As a widely used steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; it has good hot workability such as stamping and bending, and has no heat treatment. Hardening phenomenon (use temperature -196 ° C ~ 800 ° C). Corrosion-resistant in the atmosphere, if it is an industrial atmosphere or a heavily polluted area, it needs to be cleaned in time to avoid corrosion. Suitable for food processing, storage and transportation. Has good processability and weldability. Plate heat exchangers, corrugated pipes, household goods (category 1 and 2 tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, mufflers, molded product...

Claims

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Application Information

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IPC IPC(8): B23K26/38B23K26/60B23K103/04
CPCB23K26/38B23K26/60B23K2103/05
Inventor 王吉孝
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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