Rotary cutting tool having chip space in proportion to feed-per-tooth
AssigneeYg-1 Co., Ltd.
InventorsVladimir Volokh, Young Koon Park, Hyung Suk Kim, Hyun Seok Oh
Life of this patent
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Abstract
A rotary cutting tool that implements a chip space in proportion to a feed-per-tooth is proposed. The rotary cutting tool includes a cutting part in which a plurality of cutting teeth and flutes are alternately formed, wherein a cross-section of the cutting part perpendicular to a central axis is divided into a plurality of cutting tooth spaces defining a section between cutting edges of adjacent cutting teeth on the basis of the central axis, such that all of the cutting tooth spaces are designed in different sizes, or some of the plurality of cutting tooth spaces are set in different sizes from the other cutting tooth spaces.
Claims11
A rotary cutting tool comprising:
- a cutting part in which a plurality of cutting teeth and flutes are alternately formed, wherein a cross-section of the cutting part perpendicular to a central axis is divided into a plurality of cutting tooth spaces defining a region between near cutting edges of adjacent cutting teeth on the basis of the central axis, such that all of the cutting tooth spaces are designed in different sizes, or some of the plurality of cutting tooth spaces are set in different sizes from the other cutting tooth spaces, wherein a flute space in the each cutting tooth space is formed in proportion to the size of the cutting tooth space,
- wherein a flute profile of each flute of the cutting part is divided into a plurality of flute profile sections along the central axis, on the basis of a change in distance from the bottom of each flute to the central axis, the plurality of flute profile sections of each flute including a first flute profile section and a second flute profile section, a depth of the first flute profile section being kept constant over an entire length of the first flute profile section,
- wherein the depth of the first flute profile section of each flute is formed in proportion to a size of the cutting tooth space and the entire length of the first flute profile section is in proportion to the depth of the flute profile.
Dependencies are inferred from the claim text.