Specialists from the Northern Arctic Federal University (NArFU) have developed a new type of cylindrical milling cutter for working with high-strength steels. This was reported in the press service of the university.
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The new solution eliminates the key problem of milling machine operators: uneven wear of cutting inserts and high cutting forces when processing thick-sheet edges of ship structures.
The specialists proposed a unique arrangement of replaceable non-regrindable cutting inserts along diverging helical lines with a slight offset from each other. This approach allowed the blades to divide the load between themselves and reduce the cutting force.
Reducing the cutting force avoids overheating of the tool, wear or breakage of the milling cutter, and jamming of the tool in the material. Reducing the cutting force also reduces vibrations and oscillations. This allows for more accurate and high-quality surface processing.
A face-cylindrical milling cutter is known, where the inserts are installed in helical groups and move from the center to the periphery and back. The disadvantage of this arrangement is that they act simultaneously, and the insert that encounters a harder section may break, while in our milling cutter, the cutting inserts rotate one after another and each makes a sequential contribution to overcoming a difficult section.
The new milling cutter is relevant for processing high-strength steels in shipbuilding and can be used on machines with numerical program control. The introduction of the new technology will increase tool life and processing quality. This will reduce the costs of enterprises.
Earlier www1.ru reported that KMZ developed a universal trailer for transporting heavy equipment.
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