Milling bit with spherical ending for cnc milling of industrial clay
OwnerKamen Petrov Kamenovinventor
Life of this patent
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Abstract
An example milling bit comprises a shank and a working sector comprising a cutting anterior part, which is a portion of a hollow sphere, a cutting posterior part fixed to the shank and located between the shank and the spherical anterior part, at least one cutting tooth extending along an entire length of the working sector with a cutting edge, and at least one flute to the cutting tooth extending along length of the working sector following the path of the cutting edge. The spherical anterior part of the working sector is hollow and at least one cutting tooth in the anterior cavity region has a shape of a spherical shell element.
Claims19
A milling bit for industrial clays and similar materials comprising:
- a shank;
- and
- a working sector including:
- a cutting anterior part with an outer surface defined as part of a theoretical sphere,
- a cutting posterior part fixed to the shank and located between the shank and the cutting anterior part,
- at least one cutting tooth extending the entire length of the working sector, the cutting tooth including a cutting edge that is helicoidal about a central axis of the milling bit and extends to an intersection of the central axis and a front spherical surface of the cutting anterior part, the cutting edge including a helicoidal angle γ between 10° and 45°,
- at least one helical flute extending along the length of the working sector proximate to the cutting edge,
- wherein an open anterior cavity is formed by an inner surface of the cutting anterior part such that, in a region of the anterior cavity, the at least one cutting tooth is in the form of a spherical shell element with a wall thickness between 0.3 mm to 5 mm and the cutting tooth includes a wedge angle β between 3° and 40°.
Dependencies are inferred from the claim text.