A New Line of Exchangeable Heads for Internal Threading Applications

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

Main Features

• Interchangeable heads for Ø32 and 40 mm serrated type connections suitable for ISCAR THREAD TIPI type inserts.
• Interchangeable heads for Ø16, 20 and 25 mm serrated type connections suitable for GEPI type inserts.
• Interchangeable heads for Ø32 and 40 mm serrated type connections suitable for clamping internal single ended blades.
• All heads feature an internal coolant system.

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

• Heads for 32, 40mm shank diameters should be rotated by 30° in relation to the serration direction
• Heads for 25 & 20mm shank diameters should be rotated by 15° in relation to serration direction
• Heads for 16mm shank diameters should be rotated by 45° in relation to serration direction

Threading in Deep Holes
One of the main advantages of the new interchangeable heads is the possibility to use them for threading applications in deep holes. Mounting these heads on anti-vibration boring bars enables quiet and stable operations which provides excellent surface quality, even in big overhangs of up to 7D (7 * 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

Designations






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




AVC-GAIR/L
Internal Grooving Turning and Threading 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
Adapters for Internal Grooving Turning and Threading Blades • For CGIN 26 blades
(1) DMIN of 50mm shank is DMIN of requested head + 10mm
• DMIN of 60mm shanks is DMIN of requested head + 20mm





The NPA12-2021's pdf file: View (PDF) or Download (ZIP)