FIELD: process engineering.
SUBSTANCE: proposed drill comprises body including working part and stem. Note here that cutting edges are made on working part and two chip removal flutes while stem is provided with central bore to feed lubricant-coolant communicated with two bores to feed lubricant-coolant in working part made between chip removal flutes to extend to working part end face directed to drill feed side. To increase efficiency, proposed drill is provided with support elements and vibrators jointed therewith. Note here that said support elements are fitted in working part lubricant-coolant bores and rigidly jointed therewith. Note also that lateral surfaces of said feed bores are provided with channels extending to working part face directed to drill feed side. Note that length of channels exceeds total length of support elements and vibrators.
EFFECT: higher efficiency.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PREFABRICATED DRILL | 2006 |
|
RU2326755C1 |
| DRILL | 2010 |
|
RU2441732C1 |
| DRILL | 2006 |
|
RU2326754C1 |
| COMPOSITE DRILL BIT | 2011 |
|
RU2465100C1 |
| ASSEMBLED DRILL BIT | 2020 |
|
RU2749594C1 |
| PREFABRICATED DRILL | 2010 |
|
RU2436660C1 |
| BIT (VERSIONS) | 2009 |
|
RU2403128C1 |
| PREFABRICATED DRILL BIT | 2021 |
|
RU2755310C1 |
| BUILT-UP MILLING CUTTER | 2005 |
|
RU2298459C1 |
| ASSEMBLED DRILL | 2017 |
|
RU2665656C1 |
