Aunov Tech manufactures the Deep Drawn Cylindrical Shell in stainless steel on a single production floor. In duty, the deep drawn tube provides a sealed cylindrical body the assembly builds into. The same floor forms, machines and inspects the part, keeping first-article quality through scheduled runs without a second supplier involved.
Product overview
The drawing for this metal shell fixes, the formed envelope, flatness and hole location, recorded on the inspection report for every batch.
Die building, pressing and machining for this metal shell are all in house, so a drawing change is absorbed in one step, with process data archived for repeat orders.
How it is manufactured
Manufacturing runs on a controlled process path: Drawing converts a flat blank into the finished envelope in one controlled sequence; the finishing operations hold the concentricity the drawing calls for.
The cylindrical shell manufacturing record is archived together with the drawing revision that produced it. The approved cylindrical shell sample governs later runs, and any grade change is agreed in writing first.
Materials and surface finish
Materials kept on the floor cover SPCC / DC01 carbon steel, 304 / 316 stainless, aluminium, brass, copper and bronze and this metal shell runs in carbon steel or stainless.
Finish selection follows the working environment: electrophoresis, powder coating, anodising and zinc / nickel plating. The agreed finish for this metal shell travels with the part number on every reorder.
The cylindrical shell tooling and setup record is stored against the part number, so nothing depends on someone remembering. The approved cylindrical shell sample governs later runs, and any grade change is agreed in writing first.
Quality control and inspection
An ISO 9001 certified system governs production: incoming material is verified against mill certificates, first articles are measured on a CMM, and run inspections follow an agreed sampling plan. Wall thickness of the cylindrical shell is measured at first article. Tests for torque, leakage or pressure can be arranged when the service demands them, and the inspection report ships with each batch.
Typical applications
The metal shell sits in industrial machinery and equipment assemblies for customers who own the drawing and the tooling.
The same metal shell is used across several platforms, so the tightest tolerance in the family sets the spec, and cost per piece stays at the volume tier.
Specifications
| Item | Deep Drawn Cylindrical Shell |
|---|---|
| Brand | AUNOV |
| Designing | Send drawings, or send a sample to be measured – DFM notes are returned before any tooling is cut; the agreed version governs every later batch. |
| Tooling | Progressive and drawing dies are designed and built in house, so no tooling step is outsourced, and the charge is refundable against agreed volumes. |
| Samples | First-article samples ship with a dimensional report and material certificate, so the part is proven before it is made in volume, and production starts only after your written sign-off. |
| Materials | Materials held include carbon steel, 304 / 316 stainless, aluminium and brass; the final grade is fixed with the drawing review. |
| Surface finish | Plating, coating or polishing to suit the drawing; masking and laser marking available where needed. |
| 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 from 5 to 250 T and hydraulic presses 250-500 T, with in-line annealing furnaces, backed by CNC turning centres and a climate-controlled inspection room. |
| Tolerance | +/-0.05 mm on formed features, with capability data on critical dimensions; GD&T per drawing, PPAP-style reports on request. |
| Delivery terms | FOB, with DDP offered for EU and US addresses, T/T or L/C, with D/P accepted on repeat business; each volume tier carries its own quoted price. |
