FIELD: machine engineering, cutting tools for working openings.
SUBSTANCE: tool includes body with central opening and at least two similar polyhedral tips of three-edge broken shape mounted symmetrically relative to feed direction along the same diameter. In order to enlarge manufacturing possibilities due to increased efficiency, tips are arranged opposite one to other and they have different working apex angles. Tip with less apex angle advances tip with larger apex angle. Broken edges of tips may be rounded.
EFFECT: enlarged manufacturing possibilities, enhanced efficiency of tool.
2 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DRILL ASSEMBLY WITH CUTTING PLATES | 2013 |
|
RU2539255C1 |
| CUTTING INDEXABLE INSERT | 2012 |
|
RU2482939C1 |
| METHOD OF MACHINING FACES AND APEXES OF REGULAR MULTIFACE ARTICLES | 0 |
|
SU1122479A1 |
| TAP-BROACH | 1992 |
|
RU2008146C1 |
| CUTTING, CUTTING-DEFORMING AND DEFORMING END MILLING CUTTER, WORKING TIPS FOR IT, METHOD FOR MAKING SUCH TIPS, METHOD FOR WORKING BY MEANS OF DEFORMING MILLING CUTTER | 2005 |
|
RU2318634C2 |
| ASSEMBLED ANNULAR DRILL BIT WITH MECHANICAL ATTACHMENT OF POLYHEDRAL CUTTING PLATES AND THROWAWAY PLATES FOR ITS EQUIPMENT | 2014 |
|
RU2656190C2 |
| ADJUSTABLE DRILL WITH MECHANICAL FASTENING OF DIAMOND INSERTS | 2008 |
|
RU2547365C2 |
| ADJUSTABLE DRILL BIT WITH MECHANICAL ATTACHMENT OF MULTIFACETED CUTTING PLATES | 2008 |
|
RU2440872C2 |
| CUTTING PLATE FOR ROUGH AND FINISH PROCESSING | 2013 |
|
RU2531336C1 |
| PREFABRICATED CUTTER AND CUTTING PLATES FOR IT | 2007 |
|
RU2366542C2 |
