The value of the cutting speed is measured in m/min and, first of all, depends on the material and size of the workpiece.
The value of the cutting speed is measured in m/min and, first of all, depends on the material and dimensions of the workpiece.
Recommended cutting speeds of disc cutting cutters range from 10 to 2000 m/min.
It is not recommended to exceed cutting speeds of 2000 m/min with disc cutters.
As a rule, the maximum cutting rate is used only for non—metallic products - plastic, wood, etc.
When cutting aluminum materials, profiles, pipes with voids made of light alloys, the permissible speed range is 800-1800 m/min.
For solid products made of light alloys — 400-800 m/min.
More durable materials — bronze and brass have a cutting speed of 200-800 m/min, copper — 100-200 m/min, cast iron — 20-30 m/min, steel — 7-30 m/min.
Such a wide range of speeds for steel is due to the ultimate strength of the material: 20-30 m/min — for steels with a tensile strength of 500-800 N/mm2, 15-30 m/min — for steels of 800 N/mm2, 7-15 m/min — for steels with a tensile strength over 800 N/mm2.
Steel profiles and pipes having voids with a material strength limit of more than 500 N/mm2 are recommended to be cut at a speed of 60-90 m/min.
For solid steel products, the speed indicator should not exceed 25-50 m/min.
For pipes and hard—to-reach stainless steel parts, the permissible cutting speed is 7-15 m/min.
The cutting speed directly depends on the diameter of the cutting mill.
And the permissible speed indicator increases in direct proportion with an increase in the diameter of the cutting element.
In some cases, when cutting non-metallic parts that are easy to process, speeds can reach 3000 m/min.
It is not recommended to exceed the permissible speed limits, as this leads to tooth destruction and significantly reduces the wear resistance of the milling cutter.
09 Martha 2017
