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GROOVE TURN
NPA 32/2020 INCH


New Line of Exchangeable Heads for Internal Groove-Turn Applications


CUT-GRIP

Highlights
New line of interchangeable heads with serrated type connection for internal groove-turn applications


Overview
Following the development of new anti-vibration boring bars, round boring bars and CAMFIX holders with serrated type connections, ISCAR is expanding its range of solutions for groove-turn applications by adding suitable interchangeable heads.

Main Features
  • Interchangeable heads for Ø1.25 and 1.50” serrated type connection suitable for GIPI/GINI/GIFI/TIPI type inserts
  • Interchangeable heads for Ø.625, .750 and 1.00” serrated type connection suitable for GEPI/GEMI type inserts
  • Interchangeable heads for Ø1.25 and 1.50” serrated type connection suitable for clamping internal single ended blades
  • All heads feature internal coolant system




Designations
AVC-D…-GAIR/L-…
AVC-D…-GEAIR/L-…
AVC-D…-GAIC-50


Calibration plane method
Spirit level method
Groove-Turn in Deep Holes



Center Height Setup
Setting the tool’s orientation can be performed by using a calibration plane and/or spirit level.


  • Heads for 1.25 & 1.50” shank diameters should be rotated by 30° in relation to serration direction
  • Heads for 1.00 and .750” shank diameters should be rotated by 15° in relation to serration direction
  • Heads for .625” shank diameters should be rotated by 45° in relation to serration direction


Groove-Turn in Deep Holes
One of the main advantages of the new interchangeable heads is the possibility to use them for groove-turn applications in deep holes. Mounting these heads on anti-vibration boring bars enables quiet and stable operation with excellent surface quality, even in big overhangs up to 10D (10 * Bar diameter).


Overhang to Bar Diameter Ratio
The maximum overhang to bar diameter ratio depends on several factors:
  • Part material
  • Machine / Clamping rigidity
  • Cutting parameters
  • Insert / Tool geometry



The following results present the maximum overhang to bar diameter ratio that maintains quiet and stable grooving operations on steel. These results can be used as basic recommendations for long overhang groove-turn applications on steel.




Test Results - Grooving - SAE1045


Test Results - Grooving - SAE4340


AVC-GEAIR/L
Internal Grooving and Turning Adapters
(1) Minimum cutting width
(2) Maximum cutting width
(3) Cutting depth maximum





AVC-GAIR/L
Internal Grooving and Turning Adapters
• When using TIPI inserts, toolholder seat needs to be modified according to insert profile to ensure clearance
(1) Minimum cutting width
(2) Maximum cutting width
(3) Cutting depth maximum






AVC-GAIC
Internal Grooving and Turning Adapters
• When using TIPI inserts, toolholder seat needs to be modified according to insert profile to ensure clearance






The NPA32-inch-2020's pdf file: View (PDF) or Download (ZIP)
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