NTK Cutting Tools

GTPA

Multifuntioning tool for machining non-ferrous material| Swiss CNC Lathes

Best tool for machining aluminum valve spool parts

High-precision and high efficiency machining

Grooving and side-turning capability enable single-pass machining, enhancing productivity in non-ferrous materials.
Features

2 grades to choose from for machining needs

PD1 – PCD grade

  • Increased strength with fine grain polycrystalline diamond material.
  • Adhesion resistance for non-ferrous materials
  • Prevents built-up edge for high precision and stable machining
  • Hard fine grain diamond to achieve high speed machining and long tool life

KM1 – carbide grade

  • Uncoated fine grain carbide grade designed for machining non-ferrous material
  • Up sharp edges and mirror finished inserts to achieve high-quality machined surfaces
  • Significantly lower insert cost compared to PCD inserts
Tooling application
  • Swiss CNC lathes
  • Grooving / Side turning
Traversing diagram
- - - Scroll the table - - -
Coated grade Material Operation type Cutting speed (m/min) Cutting speed (SFM) Groove width (mm) Groove width (inch) Grooving feed rate(mm/rev) Grooving feed rate(IPR) Side turning feed(mm/rev) Side turning feed(IPR)
PD1(PCD grade) Non-ferrous / aluminum Grooving / Side turning 100 – 300 330 – 1000 2.0 – 2.5 .079 – .098 0.05 – 0.15 .002 – .008 0.03 – 0.10 .004 – .008
KM1(Uncoated carbide grade) 50 – 200 160 – 650
Spool
Material :
A5056
Cutting speed :
90~170 m/min 300~570 SFM
Feed :
0.04 mm/rev .002 IPR
DOC :
0.5 ~ 5.0 mm .017 ~ .197 inch
Coolant :
WET
KM1
300 pcs
Competitor’s PVD coated carbide
200 pcs

Competitor’s product required 3 grooving passes and inserts were often chipped and damaged. Cycle time was over 3 minutes.
NTK’s KM1 insert machined part in one pass reducing the cycle time to 1 minute 50 seconds.

Spool
Material :
A6063
Cutting speed :
200 m/min 370 SFM
Feed :
0.06 mm/rev .002 IPR
Coolant :
WET
PD1
10,000 pcs
Competitor’s brazed carbide insert
1,000 pcs

The GX insert solved the issue of chips remaining in the groove which eliminated an inspection process.

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