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Laser cutting machines for steel plates are highly popular in the sheet metal industry
Release time：2021-11-12
Steel plate laser cutting machines offer excellent performance and have proven themselves in many industries. In the sheet metal industry, where equipment requirements are particularly demanding, these machines continue to demonstrate exceptional capabilities.
To meet the evolving needs of the industry, high-power models of steel plate laser cutting machines have now been developed. These are perfectly suited for the sheet metal industry, and given the inherent advantages of steel plate laser cutting machines over other types, choosing them is a natural choice.
Steel plate laser cutters offer numerous advantages and achieve high material utilization. This is primarily reflected in their high cutting quality, with no burrs or burnt edges, resulting in smooth and flat cut surfaces. Furthermore, cutting efficiency is approximately three times that of traditional processing methods, yet processing costs remain low, requiring only electricity and auxiliary gas.
When using steel plate laser cutters for parts that require high cutting precision or have significant thickness, several key technologies must be mastered and addressed. Focus position control is one of them. One of the advantages of laser cutting is the high energy density of the beam, so the focal spot diameter should be as small as possible to produce a narrow cut. Since a smaller depth of field in the focusing lens results in a smaller focal spot diameter, the effective depth of field for high-quality cutting also depends on the lens diameter and the material being cut. Therefore, controlling the position of the focal point relative to the surface of the material being cut is crucial.
During the operation of steel plate laser cutting machines, issues such as focusing are frequently encountered. There are three common and simple methods for determining the focal position:
(1) Printing Method: Move the cutting head downward to print the laser beam onto a plastic plate; the point with the smallest printed diameter is the focal point.
(2) Slanted Plate Method: Place a plastic plate at an angle to the vertical axis and move it horizontally; the point where the laser beam appears smallest indicates the focal point.
(3) Blue Spark Method: Remove the nozzle, blow air, and direct the pulsed laser onto a stainless steel plate. Move the cutting head downward until the point where the blue spark is largest indicates the focal point.
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