The Auto starter motor enclosure is produced by Aunov Tech from stainless steel, formed and finished under one roof. In service, the starter motor housing locates the brush plate and absorbs the torque reaction at cranking. Die work, machining and CMM inspection are all in-house, keeping first-article quality through scheduled runs without re-quoting the job elsewhere.
Product overview
The specification of this metal enclosure turns on, wall thickness control, flange geometry and the sealing surface, checked by CMM at first article and by gauge in production.
Tooling and finishing for this metal enclosure run under one roof, so revisions do not wait on outside suppliers, and every step is logged against the part number.
How it is manufactured
This is how the metal enclosure is built: Coil is blanked and then drawn down in successive stages; threads are single-pointed or rolled and seats bored in one setup where possible.
Route cards follow every order through the shop, so nothing depends on the operator remembering.
Materials and finishing
Everything is drawn from a fixed stock list: SPCC / DC01 carbon steel, 304 / 316 stainless, aluminium, brass, copper and bronze and this metal enclosure runs in carbon steel or stainless.
Because the part faces weather and wash cycles, the coating is chosen for durability: polishing, zinc / nickel / chrome plating, anodising or powder coating. It is written into the drawing for this metal enclosure, so it cannot drift between batches.
Production batches are gauged to the signed first article, and grade changes have to be agreed in writing first.
Quality control
An ISO 9001 certified system governs production: material traceability starts with mill certificates, first-article geometry is confirmed on the CMM, and later batches follow the sampling plan agreed at approval. For the starter motor housing, 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 report is packed with the shipment.
Applications
Typical installation of the metal enclosure is in vehicle and under-bonnet assemblies under schedules that run for years at a time.
Drawings for this metal enclosure are adapted across programmes, so one approved version covers the whole range, and the die does not have to change.
Specifications
| Item | Auto starter motor enclosure |
|---|---|
| Brand | AUNOV |
| Designing | Your drawing sets the part – samples are reverse-measured into a controlled drawing; the same drawing is used for every repeat order. |
| 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 parts are measured and reported before submission, so the part is proven before it is made in volume, and production starts only after your written sign-off. |
| Materials | Stock covers carbon steel, 304 / 316 stainless, aluminium and brass; the final grade is fixed with the drawing review. |
| Surface finish | Zinc / nickel / chrome plating or e-coat, chosen for the environment this housing sees; salt-spray tested to drawing. |
| Processing | Deep drawing from coil or blank, with in-process annealing so walls thin evenly; trim, pierce, form and finish. |
| Equipment | Mechanical presses from 5 to 250 T, hydraulic presses 250-500 T, annealing ovens, plus CNC turning and machining centres. |
| Tolerance | +/-0.15 mm typical on formed parts, +/-0.3 mm on large covers; the die decides the achievable band. |
| Delivery terms | CIF or DDP, with FOB available, payment by T/T, L/C at sight or D/P; repeat orders reuse the approved first article. |
