CNC Machining by Industry
A turbine blade, a hip implant, a gear housing, and a wafer-stage component are all “CNC machined” — but they share almost nothing else. This section is the industry-specific layer: which materials, tolerances, surface treatments, certifications, and inspection regimes actually govern each field, and what the typical part looks like on the drawing board.
How to read this section.
These are real production problems, written up as they happened: what the drawing called for, where it went wrong, and the specification change that stopped the repeat. Each page names the standard involved, the measurement that caught it, and the fix. For material behaviour see Materials, for how the part is cut see Processes.
Oil, Gas & Hydraulics
- Honed Bore Oversize on Hydraulic Cylinder BodiesWhy a Ø50H7 honed bore arrives at Ø50.1 at the supplier — hone allowance, plating build-up and thermal distortion, and how to specify it so the seal fits first time
- NACE MR0175 Compliance: A Buyer’s Verification GuideWhat MR0175 actually requires — the hardness ceiling, the edition traps, and why 17-4 PH H900 and H1150D are not interchangeable on sour service
Robotics, Mobility & Cycling
- Robot Joint Reducer Housing Tolerance DriftWhy a ±0.02 mm tolerance holds on the sample and drifts in production — fixture stacking, thin walls and datum choice, and what to change so it holds repeatably
- CNC Bike Lugs vs 3D Printed: Small-Batch TitaniumThe real cost-shape comparison behind the decision, including where additive genuinely wins and where CNC tooling pays for itself across repeat batches
Industry vs part.
Most industries cut across the same set of processes, materials, and standards covered elsewhere in this wiki. The industry page exists to translate: “I’m making a part for X” into the right material callouts, the right tolerance scheme, the right certification, and the right inspection regime. For the underlying depth, jump to Materials, Processes, or Tolerances.