| |
The following guidelines must be observed when selecting the tools for internal work:.
|
| General
Recomendations |
- Use
the largest possible shank diameter.
- Use
the smallest possible overhang.
- Use
the correct, stable clamping method for the
boring bar.
|
Solid
boring bars
Smallest possible
overhang |
|
- Cooling lubricant (or compressed air) can improve chip transport and the surface quality, particularly with deep bores or blind holes.
|
 |
|
| Factors to consider when selecting boring bars for work susceptible to vibration: |
 |
| Low Vibration |
High
Vibration |
|
- The approach angle should be as close as possible to 90- and not be below 75º.
|
   |
- Select a small corner radius.
- Use positive holders (S-clamp holder) and indexable inserts.
|
 |
- Uncoated
grades generally have sharper cutting edges
and therefore generate less cutting force.
|
    |
Tools
and Indexible Inserts for TURNING
