Aunov Tech builds this Deep drawn shell in stainless steel, from coil or bar through to the finished surfaces. In service, the drawn housing shields the assembly from dust, moisture and handling while locating it in place. Drawing, cutting and measurement sit on one floor, which keeps tolerances consistent from sample to volume without handing the part to another vendor.
Product overview
The critical features of this metal shell are, the forming route, the tolerance band and the sealing faces, all held to the drawing and verified at first article.
The whole route from die to finished metal shell stays in house, so revisions do not wait on outside suppliers, with the tooling history retained in house.
How it is manufactured
The route for this metal shell is fixed and repeatable: The drawn envelope is produced in stages with anneals between them; wall thickness is checked at the thinnest section after forming.
The tooling record is stored against the part number, and the same setup is reused on the next call-off.
Materials and finishing
Standard stock includes cold-rolled steel (SPCC / DC01), 304 / 316 stainless, aluminium, brass, copper and bronze with this metal shell costed in carbon steel or stainless.
Finish selection follows the working environment: zinc, nickel or chrome plating, anodising, powder coating, electrophoresis and passivation. It is written into the drawing for this metal shell, so it cannot drift between batches.
Repeat shell orders are measured against the approved sample, so neither material nor finish drifts between lots. Mill certificates are filed per heat, so shell traceability survives a change of material batch.
Quality control and inspection
An ISO 9001 certified system governs production: material traceability starts with mill certificates, first articles are measured on a CMM, and every production run is inspected against the first-article report. Cavity depth and seal face finish on the shell are verified at first article. Torque, leak and pressure tests are available where the assembly needs them, and results travel with the batch paperwork.
Applications
This metal shell normally works inside industrial and appliance assemblies in both OEM and aftermarket supply.
Drawings for this metal shell are adapted across programmes, so one tooling set serves every position, and the drawing stays common.
Specifications
| Item | Deep drawn shell |
|---|---|
| Brand | AUNOV |
| Designing | Quotation follows the print, not a catalogue – samples are reverse-measured into a controlled drawing; the approved drawing is kept as the controlled master. |
| Tooling | Dies, fixtures and gauges are made in our own toolroom, so die cost stays transparent, and first-article timing is measured from the tooling start date. |
| Samples | Sample approval is documented: dimensions, finish and material recorded for later comparison. |
| Materials | Carbon steel (SPCC / DC01), 304 / 316 stainless, aluminium and brass are held on site; material substitutes are proposed only with your written approval. |
| Surface finish | Plating, powder coating, anodising or polishing, per the print; alternatives quoted with the quotation, samples approved in writing. |
| Processing | Multi-stage deep drawing with interstage annealing, trimmed and pierced in following dies; every stage is logged against your part number. |
| Equipment | Mechanical presses 5-250 T plus 250-500 T hydraulics, with in-line annealing, with CNC turning centres for secondary operations and CMM inspection. |
| Tolerance | +/-0.05 mm on drawn diameters, tighter bands confirmed against the drawing; critical dimensions carry CMM data with the shipment. |
| Delivery terms | CIF or DDP, with FOB available, payment by T/T or L/C, quoted in USD or EUR; sea or air freight is quoted to your door. |
