FIELD: working materials by cutting, engraving relief structures.
SUBSTANCE: cutter includes stem and cutting part in the form of trihedral truncated pyramid having lateral faces inclined by acute angle relative to lengthwise symmetry axis of stem; small base of said pyramid is apex of cutter. In order to improve efficiency, said truncated pyramid is regular one. Each lateral face of such pyramid is designed for using as front surface depending upon its spatial position relative to cutting direction. Symmetry axis of cutting portion may be matched with lengthwise symmetry axis of stem.
EFFECT: improved design of cutter.
2 cl, 12 dwg
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SU1393534A1 |
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RU2153958C1 |
