FIELD: cutting tools.
SUBSTANCE: reamer has teeth with left inclination at right hand rotation or vice versa and with cutting and sizing portions. Sizing portion is provided with bands whose width near apexes is larger than on all other parts. Inter-tooth grooves near apexes of teeth are provided with slopes whose length values exceed length of their cutting parts; inclination angle of slopes exceed sum of friction angle of cuttings along surface of slopes and friction angle of cuttings along surface of opening.
EFFECT: improved strength of tool, increased efficiency of working.
3 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CUTTING TIP | 2005 |
|
RU2285589C2 |
| REAMER | 0 |
|
SU963740A1 |
| METHOD TO DETERMINE SUM OF FRICTION ANGLES FOR FRICTION OF CHIPS AGAINST FRONT FACE OF CUTTER AND CHIPS AGAINST WORKPIECE WHEN CUTTING | 1990 |
|
RU2022719C1 |
| CUTTING TOOL | 2004 |
|
RU2278002C1 |
| CUTTING TIP | 2000 |
|
RU2233731C2 |
| 0 |
|
SU356056A1 | |
| CONE REAMER | 0 |
|
SU946828A2 |
| CYLINDRICAL REAMER | 0 |
|
SU948564A2 |
| CUTTING TOOL | 2004 |
|
RU2278003C1 |
| CUTTING TIP | 2004 |
|
RU2285587C2 |
