FIELD: process engineering.
SUBSTANCE: group of inventions relates to machine building and may be used for boring deep holes. Drilling head for tubular shank with ID and thread comprises axial body with the channel extending to first end, thread nearby said first end mating with that on said shank to allow channel levelling relative to shank ID, and bore extending from body outer surface to said channel and insert. The latter is secured to axial body and includes one or more cutting edges and slewed cutting edge abutting on said one or several cutting edges. Drilling head for single-pipe or two-pipe shank can have two efficient cutting edges.
EFFECT: efficient removal of chips, replaceable insert.
25 cl, 7 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| EJECTOR SYSTEM OF DRILLING | 2008 |
|
RU2429948C1 |
| TOOL DRILLING HEAD FOR DEEP DRILLING, IN PARTICULAR, TO DEEP DRILLING BY BTA TECHNOLOGY, AND TOOL FOR DEEP DRILLING | 2011 |
|
RU2570269C2 |
| DRILL BODY | 1995 |
|
RU2135331C1 |
| DRILL | 1995 |
|
RU2146986C1 |
| CHIP EJECTION DRILL | 0 |
|
SU1077718A1 |
| METHOD OF COOLING OF DRILL CUTTING PART FOR MACHINING OF DEEP HOLES AND DRILL INTENDED FOR ITS EMBODIMENT | 1998 |
|
RU2156180C2 |
| EJECTING DRILL HEAD | 0 |
|
SU573265A1 |
| EJECTION DRILL | 0 |
|
SU848181A1 |
| EJECTION DRILL | 0 |
|
SU1111851A1 |
| DRILL SUPPORTING INSERT | 1995 |
|
RU2136450C1 |
