Fiber laser cutting machine quality factors
Fiber laser cutting machine quality factors.
The laser cutting section will form a vertical grain.
The depth of the grain determines the roughness of the cutting surface.
The shallower the grain, the smoother the cutting section.
Roughness not only affects the appearance of the edges, but also affects the friction characteristics.
In most cases, it is necessary to reduce the roughness as much as possible, so the lighter the texture,
the higher the cutting quality.
How the thickness of the sheet metal exceeds 10 mm, the perpendicularity of the cutting edge is very important.
When away from the focus, the laser beam becomes divergent, and depending on the position of the focus,
the cut becomes wider toward the top or bottom.
The cutting edge is a few hundredths of a millimeter from the vertical line,
and the more vertical the edge, the higher the cutting quality.
3. Cutting width
The width of the slit generally does not affect the quality of the cut.
The cut width has an important effect only when a particularly precise contour is formed inside the part.
This is because the width of the cut determines the minimum meridian of the profile.
As the thickness of the sheet increases, the width of the cut also Increase.
Therefore, to ensure the same high precision, regardless of the width of the slit,
the workpiece should be constant in the processing area of the laser cutting machine.
When the slab is cut at high speed, the molten metal does not appear in the slit below the vertical laser beam,
but instead is ejected after the laser beam is deflected. As a result, the curved lines are formed at the cutting edge,
and the lines closely follow the moving laser beam.
To correct this problem, the feed rate is lowered at the end of the cutting process,
and the texture of the lines can be greatly eliminated.
The formation of the burr determines a very important factor in the quality of the laser cutting,
because the removal of the burr requires an extra workload,
so the severity and the amount of the burr can directly determine the quality of the cutting.
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