A cut aluminum tube can meet its overall length requirement and still have an angled end or an inward burr. A small frame spacer, a tube inserted into a fitting and a blank sent for further machining may need different end conditions. Before ordering a batch, define the cut-end requirements alongside the tube dimensions.
Describe the end face as well as the length
End squareness describes the orientation of the cut face relative to the tube axis. A length reading alone leaves that orientation undefined. On the drawing, identify the end face to be checked and state the applicable tolerance or dimensional specification. If the two ends have different functions, identify each one separately.
Saw-cut stock and finished blanks
Agree whether the order is for saw-cut blanks with machining allowance or parts delivered at their final length. Also identify the stage at which length is accepted. Deburring, facing or other subsequent work can affect the surface used for a length check, so the inspection plan should match the delivered condition.
Keep burr removal and chamfer requirements explicit
Inspect both the outside edge and the bore entrance. Removing a loose burr should leave the end suitable for its next operation. Where the drawing calls for an edge break, chamfer or weld preparation, specify that feature separately and include its dimensions.
For tube-fitting work, the fitting manufacturer’s instructions govern the preparation and assembly. Parker’s tube preparation guidance calls for a square cut, removal of inner and outer burrs, and cleaning after deburring. It also cautions against excessive removal at the outside edge. These steps make edge condition worth checking before a supplier packs short tube blanks.
Agree a receiving check the supplier can reproduce
Agree the datum or reference used to represent the tube axis, the inspection setup, and the location and direction of the end-face reading. A visual check with a square can screen an end, while acceptance against a specified geometric tolerance requires the agreed measurement method. Support the tube so that the fixture holds it without visibly changing its shape. If a burr prevents seating against a reference, resolve that condition before accepting the measurement.
A receiving sequence to agree before shipment
- Identify the drawing revision and whether the tube is a machining blank or a finished cut part.
- Check for loose burrs, chips and local distortion at both ends. Confirm any specified chamfer or edge break.
- Check finished length and end-face orientation using the agreed references and setup. Record the result against each requirement.
For a first order, compare a finished sample with the drawing and the mating part where one is available. Keep the acceptance setup with the order records so subsequent deliveries can be checked the same way. Agree the sampling plan and the disposition of out-of-limit pieces before shipment.
| RFQ item | Information to provide |
|---|---|
| Tube identity | Alloy, temper, product form, outside diameter, wall and applicable specification. |
| Delivered length | Nominal length, tolerance, machining allowance when required and inspection stage. |
| End face and edges | End identification, squareness requirement, burr acceptance and any specified chamfer or edge break. |
| Acceptance | Reference setup, inspection method, sampling and the drawing revision used for the first sample. |
Send the end detail with your tube enquiry
Browse the aluminum seamless pipe and tube catalogue to identify the relevant material form. Send the end-detail drawing, tube specification, length, quantity and intended assembly. We can review the requested supply and end condition before confirming an offer.
Post time: Nov-11-2026