ADC12 Die Casting RFQ Checklist for Thin-Wall Covers, Brackets, and Enclosures

# ADC12 Die Casting RFQ Checklist for Thin-Wall Covers, Brackets, and Enclosures

ADC12 die casting can be a practical route for higher-volume aluminum covers, brackets, electrical enclosures, appliance parts, telecom housings, and motor-side covers. But a useful quote depends on much more than part weight.

For thin-wall die-cast parts, the RFQ must define wall thickness, draft, slide actions, inserts, machining cleanup, coating, cosmetic surfaces, and inspection records. Otherwise suppliers may quote different tooling scopes and buyers compare prices that are not really comparable.

Helpful Bohua routes:

• •Die casting process guide
• •ADC12 material guide
• •Casting process selection guide
• •Electrical mounting bracket RFQ path
• •Quality control

1) Confirm when ADC12 or A380-style die casting fits

ADC12 and similar die-casting alloys are commonly discussed when the project needs:

• •thin-wall geometry
• •higher production volume
• •good castability for complex shapes
• •brackets, covers, boxes, and enclosure-type parts
• •integrated bosses, ribs, or mounting features

They are not automatically the right route for every pressure-tight or heat-treated structural part. If the part is sealing-critical, heavily machined, or specified as A356-T6, ask suppliers to explain the process recommendation rather than quoting die casting by default.

2) Wall thickness, ribs, and draft: make tooling assumptions visible

State:

• •nominal wall thickness
• •local thick sections or hot spots
• •rib height, rib thickness, and transitions
• •required draft angle or whether supplier may recommend draft changes
• •cosmetic surfaces and allowable parting-line locations

If the drawing is not final, ask suppliers to mark geometry that may need DFM changes before tool quotation.

3) Slides, cores, inserts, and tool scope

Thin-wall covers and enclosures often hide tooling cost inside side holes, undercuts, and insert requirements.

Ask each supplier to separate:

• •main die cost
• •slide or side-action cost
• •insert or steel-safe areas
• •ejector mark constraints
• •tool life assumption if they quote it
• •sample correction loop and what is included

Do not compare unit price until tool scope is comparable.

4) Machined features and cleanup after casting

Even die-cast parts often need CNC or secondary work. Define:

• •tapped holes or threaded bosses
• •sealing faces or gasket lands
• •bore cleanup and datum references
• •cut edges, gates, flash, and deburring expectations
• •features where porosity exposure is unacceptable

If the buyer only says "machining as required," suppliers will price different operations.

5) Coating, surface finish, and cosmetic areas

ADC12 die-cast covers and enclosures are often visible parts. The RFQ should define:

• •powder coat, paint, conversion coating, plating, or bare finish
• •masking needs for threads or contact faces
• •cosmetic acceptance zones
• •surface defects that are not allowed
• •packaging protection for finished surfaces

If the part will be painted by the buyer, say whether supplier-side surface preparation is still required.

6) Porosity and inspection records

For die-cast parts, porosity risk is tied to geometry, gating, process control, and machining exposure. Ask for evidence that matches the risk:

• •first article dimensional report
• •CMM or fixture report for functional datums
• •thread gauge records if threads are critical
• •X-ray or section checks only where the program requires it
• •coating or appearance records for visible parts
• •material certificate or alloy verification method

Avoid asking for every possible record by default. Ask for the records that support the buyer's real approval risk.

Copy-paste RFQ starter

> ADC12 / A380 die-casting RFQ

> Files: 2D PDF rev __, STEP __, NDA-first review yes/no __

> Part family: cover / bracket / enclosure / motor cover / electrical box / other __

> Alloy target: ADC12 / A380 / drawing-defined / supplier recommendation __

> Process target: high-pressure die casting / supplier recommendation __

> Wall thickness: nominal __, minimum __, local thick zones __

> Tooling notes: slides __, inserts __, undercuts __, cosmetic parting line constraints __

> Machining scope: threads __, bores __, sealing faces __, datum cleanup __

> Finish: bare / powder coat / paint / conversion coating / buyer-side __

> Inspection records: FAI __, CMM or fixture report __, thread gauge __, material certificate __, coating record __

> Quantity: prototype __, annual volume __, expected release pattern __

> Destination and Incoterm: __

Start a structured ADC12 die-casting RFQ

If the buyer needs a process recommendation or a die-casting quote, use the ADC12 die-casting RFQ upload path.

FAQ

Is ADC12 always cheaper than A356 gravity casting?

No. It depends on volume, tooling, geometry, machining, inspection, finishing, and approval workload. ADC12 die casting can fit thin-wall and higher-volume parts, while A356 gravity casting may fit structural or heat-treated programs better.

Should a buyer ask for X-ray inspection on every ADC12 part?

Not by default. Ask for X-ray, sectioning, or other special checks only where the part function, machining exposure, or customer requirement justifies it.

What should be compared before choosing a die-casting supplier?

Compare tool scope, slide actions, machining operations, cosmetic expectations, inspection records, sample correction rules, and landed-cost assumptions before choosing on unit price.