The Deep drawn cover is produced by Aunov Tech from stainless steel, formed and finished under one roof. In service, the drawn housing encloses the sensitive internals and carries the mounting interface. 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
This metal cover is defined by, draw depth, wall band and the surfaces that forming cannot hold, recorded on the inspection report for every batch.
Forming, machining and finishing for this metal cover happen on one site, so revisions do not wait on outside suppliers, and every step is logged against the part number.
How it is manufactured
The process for this metal cover runs in a fixed sequence: Coil is blanked and drawn through progressive and single-stage dies; after drawing, critical faces are machined and the part is degreased and gauged.
Every cover order keeps its trace back to the approved first article, and a reorder is a repeat rather than a new start. The signed cover sample remains the reference and is kept with the job file.
Materials and finishing
Standard stock includes cold-rolled steel (SPCC / DC01), 304 / 316 stainless, aluminium, brass, copper and bronze and the grade agreed for this metal cover is carbon steel or stainless.
The surface treatment is picked to match the service conditions: electrophoresis, powder coating, anodising and zinc / nickel plating. The agreed finish for this metal cover travels with the part number on every reorder.
The approved sample governs later runs, and grade changes have to be agreed in writing first.
Quality control
Production runs under an ISO 9001 certified quality system: material traceability starts with mill certificates, first articles are measured on a CMM, and later batches follow the sampling plan agreed at approval. For the cover, cavity depth and seal face finish are checked at first article. Functional testing – torque, leak or pressure – can be written into the plan, and the report is packed with the shipment.
Applications
This metal cover is used in industrial and appliance assemblies for customers who buy to drawing.
One part number for this metal cover frequently serves several assemblies, so wall bands and finishes are selected to cover the widest duty, and no re-tooling is needed.
Specifications
| Item | Deep drawn cover |
|---|---|
| Brand | AUNOV |
| Designing | Quotation follows the print, not a catalogue – a manufacturability review comes back with the quotation; revisions are re-quoted once rather than silently absorbed. |
| Tooling | Our toolroom covers die design, wire-cut EDM and maintenance, so the die charge appears as its own quotation line, and first-article timing is measured from the tooling start date. |
| Samples | Sample and first article are the same discipline here: measured, reported, then approved. |
| Materials | Carbon steel (SPCC / DC01), 304 / 316 stainless, aluminium, brass and copper – the grade is matched to the duty of this cover. |
| Surface finish | Zinc, nickel or chrome plating, anodising, passivation or e-coat; the agreed finish travels with the part number. |
| Processing | Multi-stage deep drawing with interstage annealing, trimmed and pierced in following dies; first articles verify the whole flow before the run is released. |
| Equipment | Mechanical presses 5-250 T plus 250-500 T hydraulics, with in-line annealing; first articles and batch samples are checked on the CMM. |
| Tolerance | +/-0.05 mm to +/-0.1 mm across the part, wall thickness held to print; critical dimensions carry CMM data with the shipment. |
| Delivery terms | Delivery quoted per Incoterms 2020 – FOB, CIF or DDP – by sea or air, to your address. |
