Quality assurance
The tolerance on your drawing is only worth what the inspection behind it is worth. This is how we check, and what you get in the box with the parts.
Four stages, and the last one is a document
Most suppliers will tell you their parts are inspected. The question is what was checked, against what, and whether there is a record. Ours is: measured on every part, recorded against the drawing revision, and issued in writing.
In-process inspection
Checks happen during the run, not only at the end. A dimension that drifts during a batch is found on the batch that is running, not on the finished part.
Final inspection
Every part is checked against the drawing revision the order was released against. The checks are recorded, not ticked from memory.
The 300% check
Critical features are measured on every single part rather than on a sample from the batch. That is the difference between a part that has been inspected and a part that has been checked.
The written report
Each batch leaves with a dimensional report: what was measured, against which drawing revision, and what the readings were. It goes in the box, with the material certificates.
What the measurements are made with
Everything below is in the building, so a measurement does not wait on a round trip to a laboratory. Each instrument has a calibration schedule, and the calibration record travels with the batch report.
- Coordinate measuring machine (CMM)
- Optical projector
- Height gauge and granite surface plate
- Digital micrometers, bore gauges and calipers
- Gear testing machine
- Material tensile testing machine
- Hardness testing machine
- Surface roughness tester
- Thread and plug gauges
Material certification
Mill test certificates are available on request for forged, cast and heat-treated parts, and are supplied with the shipment where specified on the order.
First article approval
Before a batch runs, a first article is measured against the drawing and approved. Nothing goes into production on the assumption that it will be right.
Batch traceability
Parts from the same batch carry the same batch mark, and the batch mark resolves to the material, the heat treatment and the inspection record behind it.
Ask us for the inspection report format
If your quality system needs a specific report or a certificate on every batch, say so in the enquiry and we will send a sample before the first order.