CNC Turning for Aluminum 7075-T6

Turning 7075 aluminum requires slightly lower speeds than 6061 but still machines very well. The higher hardness actually helps chip formation and produces cleaner breaks.

Recommended Machining Parameters

ParameterValue
Achievable Tolerances±0.005 mm (±0.0002")
Surface FinishRa 0.2-0.8 μm
Cutting Speed250-500 m/min
Feed Rate0.08-0.20 mm/rev
Tooling RecommendationsCarbide inserts with chip breaker geometry. PCD for mirror finish. TiAlN coated for extended life.

Expert Machining Tips

1

Use chip-breaking inserts for heavy roughing

2

Lower speeds than 6061 but still fast

3

Rigid setup important for long parts

4

Finishing passes at high speed for best Ra

Common Parts Made

Aerospace shafts

High-strength fittings

Precision dowel pins

Threaded studs

Roller components

Machining Challenges

  • Stress-induced warping on thin-wall parts
  • Requires careful tool engagement to prevent chatter

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