Aunov Tech supplies the Deep drawn cap as a stainless steel component manufactured entirely in house. On the product, the drawn housing provides a closed, seam-free body the customer builds into. Die work, machining and CMM inspection are all in-house, and a design change is re-sampled in one place without re-quoting the job elsewhere.
Product overview
What matters most on this metal cap is, wall thinning, concentricity and the finished mating faces, each measured at first article and gauged on production batches.
Forming, machining and finishing for this metal cap happen on one site, so revisions do not wait on outside suppliers, with process data archived for repeat orders.
How it is manufactured
The process for this metal cap runs in a fixed sequence: The shell is drawn from a blank in successive stages, annealed where the wall thins; piercing and trimming are done in the same die line.
The cap tooling and setup record is stored against the part number, so nothing depends on someone remembering. First article, drawing revision and material cert travel with each cap batch.
Materials and finishing
Materials kept on the floor cover carbon steel SPCC / DC01, 304 and 316 stainless, aluminium, brass and copper and this metal cap is costed in carbon steel or stainless.
The finish is chosen for the duty it will see: electrophoresis, powder coating, anodising and zinc / nickel plating. It is fixed on the drawing for this metal cap, so repeat orders never reopen the question.
Production batches of the cap are gauged back to the signed first article, not to a memory of it. First article, drawing revision and material cert travel with each cap batch.
Quality control
An ISO 9001 certified system governs production: stock arrivals are checked against mill certificates, the CMM measures the first article dimension by dimension, and production batches are inspected on a sampling plan. Cavity depth and seal face finish of the cap are measured at first article. If the assembly calls for torque, leak or pressure proof, the test is built into the quality plan, with certificates included in the shipment file.
Applications
This metal cap normally works inside industrial machinery and equipment assemblies for customers who buy to drawing.
The same metal cap is often run in more than one assembly, so the tightest tolerance in the family sets the spec, and the die does not have to change.
Specifications
| Item | Deep drawn cap |
|---|---|
| Brand | AUNOV |
| Designing | The quotation follows your print, not a catalogue – unusual walls, threads or tolerances are checked for feasibility first. |
| Tooling | Dies, fixtures and gauges are made in our own toolroom, so tooling lead time stays under our control, and ownership is confirmed on the quotation. |
| Samples | Pre-production samples come with a full inspection report, so the approved first article becomes the gauge reference, and the signed sample is kept for future reorders. |
| Materials | Carbon steel (SPCC / DC01), 304 / 316 stainless, aluminium, brass and copper – the grade is matched to the duty of this cap. |
| Surface finish | Plating, powder coating, anodising or polishing, per the print; masking and laser marking available where needed. |
| Processing | Deep drawing from coil or blank, with in-process annealing so walls thin evenly; in-process checks sit between stages, not only at the end. |
| Equipment | Mechanical presses 5-250 T plus 250-500 T hydraulics, with in-line annealing, backed by CNC turning centres and a climate-controlled inspection room. |
| Tolerance | +/-0.03 mm on turned secondary features, +/-0.1 mm on as-drawn walls; GD&T per drawing, PPAP-style reports on request. |
| Delivery terms | Delivery is quoted to your location: FOB, CIF or DDP, by sea or air as you prefer. |
