Clamping of CoroCut 1- and 2-edge inserts
The insert clamping system has been designed to counteract high axial forces from both sides. For the smaller inserts (insert seats D-G) a V-profile clamping is used, but for larger inserts (insert seats H-L) the unique rail design adds superior stability to the insert clamping. The rail system should be first choice for profiling and turning applications (generating side forces) giving increased cutting data and highest stability.
The force holding the insert is generated by two different designs.
1. Screw clamping.
2. Spring clamping.
Parting blades have deep accessibility in narrow areas due to spring clamping. This allows for quick and easy clamping and loosening in the same operation, due to an excentric key.
All our solid tool holders/bars have integrated screw clamping. This gives very stable and secure clamping of the insert and is recommended for applications where large cutting forces arise (together with rail insert seat). This is particularly important when combined with small cutting depths as in longitudinal turning, profiling and face grooving.
The programme is based on eight different insert seats depending on insert widths and geometries, see the table.
1. Screw clamping
2. Spring clamping
Insert seat size to correspond with insert and tool holder
|Insert seat size|
|Insert widths, mm|
2.0 - 2.4
2.4 - 3.2
3.0 - 4.0
4.0 - 5.0
5.0 - 6.4
6.0 - 7.1
7.9 - 8.0
|Max cutting depth|
The Q-Cut system is based on only a V-shaped form, ideal for straight cutting forces, e.g. parting off applications. Q-Cut have 7 different insert sizes of 20, 25, 30, 40, 50, 60 and 80.
The tool holder have a screw and spring clamping design.
Intended for parting-off and deep grooving applications. For mounting in the machine a separate tool block must be used having normal shank sizes or Coromant Capto mounting.
• In order to avoid vibration and to achieve best tool life adjust the overhang, ar, of the blade to obtain the shortest possible overhang to suit the application. See drawing. Max ar is 55 mm.
• Choose a 2-edged insert having an ar larger than the cutting depth, if not possible choose a 1-edged insert, see Main catalogue information.
• If using screw clamped reinforced blades check the cutting depth limitations in separate diagrams in Main catalogue.
• Use the separate coolant adaptor for the tool block in order to achieve the best coolant supply.
Coromant Capto and solid shank holders
Intended for grooving, turning and profiling applications in Coromant Capto and shank holder versions. Available in right hand, left hand and neutral style in short and long versions (ar).
This programme also includes a separate small part machining programme in smaller shank sizes with an angled insert clamping screw for easier changing of insert.
To minimise risk of vibration and deflection always choose:
• Toolholder with smallest possible overhang.
• Toolholder with maximum shank dimension.
• Blade or holder with maximum blade width (largest possible insert seat size).
Holder for small part machining
Face grooving shank holders
Intended for face grooving applications. Available in 0° and 90°, right and left hand style versions covering a large area of first cut diameters.
Covers first cut diameter from 34 - 400 mm. All made in B-curved version, A-curved version to be ordered as Tailor Made or use the modular CoroCut SL system where both A- and B-curved blades are available.
• The first cut must be made within the min. and max. limits for the holder – see Main catalogue or separate marking on the holder.
• Always start from the outer diameter and move towards the centre.
• Choose the correct tool (A or B sweep, right or left hand style) depending on your machine set-up and workpiece rotation. See below.
0 degree face grooving
Angled shank holders
Intended for profiling and shallow undercutting applications.
Available in 7°, 45° and 70°, right and left hand style versions. Developed specifically for aluminium rim machining.
70° angled holder
Shank holders for shallow grooving
These holders are universal for all shallow grooving and face grooving applications. They are often the only solution when Tailor Made inserts with complicated shapes are used. One seat size can take inserts which normally have other seat sizes up to a limited cutting depth (ar).
Available in 0° and 90°, right and left hand style holders.
|Holder seat size||Insert seat size||Max depth of cut ar, mm|
|G||E, F, G||3.5|
|K||H, J, K||4.5|
Shallow grooving holder
Intended for internal grooving applications. Available in right and left hand style bars from 16 to 50 mm diameter. These bars are equipped for internal coolant.
Also 20° angled bars for internal profiling are available.
Bars up to 25 mm diameter are cylindrical and designed to be used in EasyFix sleeves. Bars above 25 mm diameter have flats.
• Always mount the bars with shortest possible overhang in order to avoid vibration and deflection.
• Apply large amounts coolant in order to both cool down the insert and also help chip evacuation and avoid breakage.
• Use EasyFix sleeves to achieve the best set-up, avoiding vibration and giving correct centre height and cutting angles.
CoroCut 3 holders
Intended for economical shallow parting and grooving in mass production.
Available in right and left hand styles, Coromant Capto (C3/C4) and shank holder versions from sizes 1010 to 3232.
CoroCut 3 holder
The CoroCut SL system
A universal modular system. Intended mainly for internal grooving and external face grooving applications. Focused on Coromant Capto set-ups.
|Consists of straight and face grooving blades for external and internal use. Blades for CoroCut, T-Max Q-Cut 151.3 and 151.2 available|
|- CoroCut for face grooving and grooving applications|
- CoroCut 3 for economical grooving
- Q-Cut 151.3 for small internal diameters
- Q-Cut 151.2 for deep grooving
- CoroCut XS for precision grooving
|Adaptors in 0° , 90° and 45° styles in Coromant Capto and shank holder versions.|
|Always mount the bars with shortest possible overhang in order to avoid vibration and deflection.|
|Possibility to mount blades on 570 adaptors, both solid steel and damped bars, in order to avoid vibration. |
|Blades with a coolant connector allow cutting fluid to be concentrated at the back of the insert, see drawing.|
|Adaptors making it easy to fit coolant tubes both over and under the blades.|
Read more in our supplement
CoroCut MB for internal machining
(Diameter area from 10 mm)
CoroCut MB is a high precision grooving, turning and threading system for for machining min. 10 mm diameter holes. The edge line of the insert is sharp and together with a thin-layered coating it is suitable for internal machining.
The insert is mounted with a screw from the front position in three grooves for safe and stable mounting.
The system has two insert sizes dedicated to different bore diameter. Boring bars are designed with a oval cross section for maximal stability and are available in steel and carbide bars.
The steel bars for overhang up to 3 x D and the carbide up to 5.5 x D.
For accurate machining with less vibration and precise centre height of the insert, use a cylindrical bar with Easy-Fix sleeves.
Correct clamping with EasyFix
The CoroCut MB system includes different types of inserts for a wide range of applications i.e. grooving, face grooving, profiling, preparting as well as turning and threading.
Grooving width from 0.7–3.0 for general grooving and circlip grooving.
Round insert styles for internal profiling and grooving available in widths from 0.8–3.0 mm.
Face grooving is available for hole diameters from 12 mm and width from 1–3 mm. The maximum cutting depth for these inserts is 5 mm.
Inserts for producing a 45° chamfer inside the bore before parting off the component are available.
Animation - CoroCut MB
CoroMill 327 – grooving cutter
for milling applications
CoroMill 327 is a sharp precision ground milling tool for grooving and threading machining into min 10 mm diameter holes. CoroMill 327 should be used for holes with circular interpolation but also for longitudinal milling.
The insert is front mounted and positioned in three grooves for safe and stable mounting.
The tool has four insert sizes for different hole diameters.
The milling cutters are available in steel and carbide Weldon shanks in two diameters 12 mm and 16 mm and for overhangs from 15 mm up to 85 mm. All milling cutters are equipped with through coolant for improved chip evacuation.
The insert program covers inserts for general grooving and circlip widths from 0.7–5.15 mm. Inserts for both circlip and chamfering in one operation, widths 1.1–4.15 mm. Full radius inserts, widths 1–4 mm.
• Be aware, the CoroMill 327 inserts do not fit MB tools and vice versa.
• For new toolholders, preload the tip-seat by mounting and remounting the insert a few times prior to cutting.
Read more about CoroMill 327
CoroMill 328 – grooving cutter
for milling applications
CoroMill 328 is used for internal and external circlip grooves and with diameters over 39 mm. CoroMill 328 has one insert size for circlip widths from 1.3–5.15 mm. Inserts for both circlip and chamfering in one operation, widths 1.1–5.15 mm.
CoroMill 328 comes with Weldon, arbor or bore with keyway mounting in four diameters from 39–80 mm and 2–8 inserts with three indexable cutting edges for high productive economic machining. Sharp cutting edges generate high quality grooves with depth up to 5.0 mm.
Read more about CoroMill 328