Machining Guidelines

Large Turning Turning and milling of ACM composites can be performed using conventional tungsten carbide turning tools however for prolonged tool life, we recommend using diamond tipped inserts.

Dust extraction is highly recommended when machining composite materials. Operators should also wear a non-toxic particle mask to avoid dust particle inhalation.

ACM materials should be machined dry (coolant is not required) with a surface cutting speed of 300 - 350 m/min.

Turning Tool Geometry
Lead Angle0° - 5° (Flat - Positive)
Heel Angle5° - 3° (Positive)
Top Rake0° - 5° (Flat - Positive)
Tip Radius0.8 - 2.0 mm
Turning / Milling
Diameter (mm)0 - 5050 - 100100 - 200200 - 400400 - 600600 - 800800 - 1000
Speed (rpm)21001000750500350150100
Feed RateRoughing 0.20 - 0.30 / Finshing 0.10 - 0.15

Drilling can be performed with standard HSS drill bits however for prolonged drilling operations, carbide tipped drills are recommended.

Drilling
Diameter (mm)5101520253040
Speed (rpm)1000800600400350300200
Feed Rate400400300300350300100

Sanding should be performed using silicon carbide sanding belts. Belts containing aluminium oxide may contaminate the ACM material, which will cause problems in application.

All ACM grades are non-toxic and dust formed during machining is classified as a 'nuisance dust' only.

Composite Tubes