Thread Fit After Finishing
CNC Machined Aluminum Parts
Custom aluminum machined parts with controlled anodizing boundaries, threads and functional interfaces.
- Process
- Machining and finish sequence reviewed from drawing
- Материалы
- Confirm alloy and surface treatment
- Количество
- State quantities for samples and production
- Inspection
- Verify thread fit in the delivered condition
Product Overview
GPT Precision manufactures drawing-based aluminum components, including covers, housings, brackets, mounting plates and other machined parts.
Марка материала, machining geometry and surface finishing are reviewed together where the final fit depends on the delivered surface condition.
Key Features
- Consider a machined aluminum cover with an anodized exterior and a tapped hole for an assembly screw.
- If the design requires an uncoated thread, the drawing should identify the masking boundary and whether the entry chamfer must remain bare.
- The intended functional surfaces should be identified before finishing.
Manufacturing Considerations
- Anodizing changes the surface condition and can affect fit dimensions.
- Where internal threads are intended to be anodized, coating characteristics and the expected dimensional effect should be discussed with the finisher before establishing the machining and acceptance requirements.
- A thread that passes inspection before anodizing may require a separate final-condition check.
Quality Control & Inspection
- After anodizing and any specified mask removal, inspect the relevant coating boundary and functional features.
- Thread acceptance should correspond to the requirements specified for the delivered condition.
- Where thread gauging is required, the selected procedure should be appropriate for the usable thread depth and applicable thread specification.
Specifications to Confirm
| Coating boundary | Show the masking limit and any bare entry chamfer. |
|---|---|
| Thread acceptance | Confirm the thread callout, usable depth and inspection condition. |
Assembly Considerations
Screw engagement
Confirm usable thread depth and fit after the specified finish.
Related Products
Request an Aluminum Parts Quote
Отправьте ваш чертеж, alloy specification, quantity and surface treatment requirements. Identify threaded features, mating dimensions and any areas requiring masking or special inspection.
