Achieving a high-quality surface finish is one of the most common challenges in CNC machining, especially when working with non-ferrous materials such as aluminum, copper, or brass. In this case study, we will walk through how the CCGT09T301 insert was applied in a real production setting to deliver excellent results in precision turning.
A European customer was producing aluminum valve housings for an automotive application. The challenge was to achieve a mirror-like surface finish (Ra ≤ 0.4 μm) without increasing cycle time or tool costs. Traditional inserts (CCMT type) delivered acceptable results, but the surface finish was not consistent enough for the client’s quality standards.
The CCGT09T301 insert is specifically designed for finishing applications:
Sharp, ground cutting edge reduces cutting resistance and prevents built-up edge (BUE).
Polished rake face ensures smooth chip evacuation.
Low cutting force makes it suitable for lightweight workpieces and smaller machines.
These characteristics made it a perfect candidate for machining non-ferrous alloys where surface finish is critical.
Workpiece Material: Aluminum alloy 6061
Insert: CCGT09T301, uncoated polished carbide
Cutting Speed (Vc): 400 m/min
Feed Rate (f): 0.08 mm/rev
Depth of Cut (ap): 0.2 mm
Coolant: Water-soluble cutting fluid
| Parameter | Before (CCMT Insert) | After (CCGT09T301 Insert) |
|---|---|---|
| Surface Roughness (Ra) | 0.8 – 1.0 μm | 0.3 – 0.4 μm |
| Tool Life (per edge) | ~20 min | ~35 min |
| Cycle Time | No significant change | No significant change |
| Scrap Rate | 5% | <1% |
The CCGT09T301 insert not only improved the surface finish significantly but also extended tool life and reduced the scrap rate.
The customer reported smoother production runs, fewer rejected parts, and improved efficiency in their CNC shop. By switching to CCGT09T301, they met their automotive client’s strict quality requirements while maintaining cost efficiency.
Looking for high-performance inserts for aluminum and non-ferrous machining?
Check out our Carbide CCGT09T301 Polished Turning Insertdesigned for achieving excellent surface finishes in CNC turning.
This case study shows how CCGT09T301 inserts can make a measurable difference in non-ferrous machining applications. By delivering higher surface quality, longer tool life, and lower scrap rates, these inserts prove to be a smart investment for precision manufacturing.
If you are facing challenges with surface finish on aluminum or copper components, consider upgrading to polished ground CCGT inserts for consistent results.
Contact our experts today for a free quote or technical consultation.