Aunov Tech builds this Auto starter motor frame in stainless steel, from coil or bar through to the finished surfaces. Once installed, the starter motor housing houses the armature and carries the drive-end bearing. Forming, machining and inspection share one floor, and a design change is re-sampled in one place without a second supplier involved.
Product overview
This metal frame is defined by, the draw ratio, corner radii and the faces that must stay flat, recorded on the inspection report for every batch.
Die building, pressing and machining for this metal frame are all in house, which keeps revision loops short and samples fast, with the tooling history retained in house.
How it is manufactured
This is how the metal frame is built: The shell is drawn from a blank in successive stages, annealed where the wall thins; after drawing, critical faces are machined and the part is degreased and gauged.
Every order keeps its trace back to the approved first article, and a reorder is a repeat, not a new start.
Materials and surface finish
Standard stock includes cold-rolled steel (SPCC / DC01), 304 / 316 stainless, aluminium, brass, copper and bronze and this metal frame is costed in carbon steel or stainless.
Because the part faces weather and wash cycles, the coating is chosen for durability: polishing, plating in zinc, nickel or chrome, anodising, powder coating, electrophoresis and passivation. It is fixed on the drawing for this metal frame, so repeat orders never reopen the question.
Production batches are gauged to the signed first article, with mill certificates filed per heat.
Quality control
Quality management is certified to ISO 9001: material traceability starts with mill certificates, the first article is CMM-measured against the print, and run inspections follow an agreed sampling plan. At starter motor housing level, bore-to-pilot concentricity is measured on a CMM at first article, and every run is gauged for flange flatness. Where the application asks for it, torque, leak or pressure testing is added to the plan, and the batch file carries the results.
Applications
Typical installation of the metal frame is in automotive sub-assemblies and adjacent equipment across automotive, appliance and industrial programmes.
The same metal frame is often run in more than one assembly, so one approved version covers the whole range, and no re-tooling is needed.
Specifications
| Item | Auto starter motor frame |
|---|---|
| Brand | AUNOV |
| Designing | Your drawing sets the part – 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 tooling lead time stays under our control, and ownership is confirmed on the quotation. |
| Samples | Prototype and pre-production samples are provided against the drawing, so the sample is retained as the master, and production starts only after your written sign-off. |
| Materials | Carbon steel (SPCC / DC01), 304 / 316 stainless, aluminium, brass and copper – the grade is matched to the duty of this frame. |
| Surface finish | Phosphating for coating adhesion, then powder coating, e-coating or zinc plating; chrome and nickel for visible faces. |
| Processing | Blanking, multi-stage deep drawing with interstage annealing, trimming and piercing, coining, then finishing. |
| Equipment | Mechanical presses from 5 to 250 T, hydraulic presses 250-500 T, annealing ovens, plus CNC turning and machining centres. |
| Tolerance | +/-0.1 mm to +/-0.2 mm general; critical features held to the drawing and verified on the first article. |
| Delivery terms | FOB, with DDP offered for EU and US addresses, payment by T/T or L/C, quoted in USD or EUR; price breaks tie to annual volume. |
