For components having an axial groove into the component it is important to choose the correct tool holder. The tool holder must be adapted to the bending radius of the groove and should therefore be curved.
CoroCut 1- and 2-edged grooving and turning inserts with GM, TF and RM geometries can be used. For small first cut diameters Q-Cut 151.3 with geometry 7G and 7P can be used. Normal feed methods should be used, see turning of grooves.
The CoroCut MB and CoroTurn XS system are dedicated for a smaller diameter range and is available with face grooving inserts in widths from 1.0–3.0 mm.
Tool holders
Use CoroCut solid tool holders especially designed for face grooving type RF/LF (0° insert angle) or RG/LG (90° insert angle) covering first cut from 34–400 mm diameter giving the best stability.
For grooving depths up to 4.5 mm, a special shallow grooving tool holder is available.
CoroCut SL face grooving blades can also be used together with Coromant Capto and shank tool adaptors, making it possible to build many different combinations.
| RF/LF holder | RG/LG holder | The CoroCut SL system |
|
Recommended grade and cutting data
|
Starting grade GC1125.
Cutting speed 100–125 m/min, radial feed 0.10 mm/r and axial feed 0.15 mm/r. |
|
Roughing
When roughing, the first cut (1) always starts on the largest diameter and works inwards. The first cut offers chip control but less chip breaking.
Cuts two (2) and three (3) should be 0.5-0.8 x width of the insert. Chip breaking will now be acceptable and the feed can be increased slightly. | |
Finishing
When finishing, machine the first cut (1) within the given diameter range.
Cut two (2) finishes the diameter. Always start outside and turn inwards.
Finally, cut three (3) finishes the inner diameter to the correct dimensions. | |
Case stories
 | Machining specification
Operation: Face grooving
Material: Stainless steel SS 2343, CMC 05.2
Machine: CNC turning lathe
Tool holder: RF123K25-2525B-058BM
Insert: N123K2-0600-0004-TF
Grade: GC2135
| Cutting data | Competitor | Sandvik Coromant |
| Cutting speed: | 110 m/min | 110 m/min |
| Feed: | 0.08 mm/r | 0.16 mm/r |
| Time in cut: | 0.18 min | 0.09 min |
| Components: | 390 pcs/edge | 560 pcs/edge |
Tool life +100%
Productivity +44%
Annual time saving 43 hours |
|
|
 | Machining specification
Operation: Face grooving
Material: Unalloyed steel, C35, CMC 01.1
Machine: CNC Bar feed
Tool holder: MB-A16-20-09R
Insert: MB-09AF200-02-14R
Grade: GC1025
| Cutting data | Competitor | Sandvik Coromant |
| Cutting speed: | 95 m/min | 150 m/min |
| Feed: | 0.02 mm/r | 0.025 mm/r |
| Time in cut: | 0.17 min | 0.09 min |
| Components: | 400 pcs/edge | 500 pcs/edge |
Tool life +25%
Productivity +95%
Annual time saving 284 hours |
|
|
|