Casting quality-risk RFQ guide for porosity, shrinkage, leak risk, CMM, and inspection evidence
Use this RFQ route when an aluminum casting project depends on defect prevention, quality recovery, supplier comparison, or inspection evidence before tooling approval.
This page is built for procurement, SQE, and engineering buyers who are not asking for a generic price. They need the supplier to review defect risk, critical zones, inspection records, and approval evidence against the drawing.
What procurement wants clarified
Commercial checkpoints before the buyer sends the RFQ
RFQ action
Use this page as the last stop before contact
The goal is to replace vague contact intent with a quote that includes drawing/spec, material, quantity or MOQ, tooling, lead time, testing, and reply path.
Open RFQ form →Buyer checklist
What to include so the quote is real
• 2D PDF drawing and STEP or IGES model with critical zones, sealing faces, datums, bores, ports, threads, or cosmetic surfaces marked
• Defect risk or known symptom: gas porosity, shrinkage porosity, cold shut, misrun, hot tear, oxide inclusion, dimensional drift, leakage, or machining exposure
• Inspection method and acceptance target: CMM, X-ray, CT, sectioning, leak test, pressure hold, dye penetrant, visual standard, material certificate, or heat-treatment record
• Current supplier context if available: defect photos, sample parts, batch date, alloy, heat treatment, tooling status, and whether the buyer needs second-source review
• Annual volume, pilot quantity, sample timing, destination country, Incoterm, and approval documentation such as FAI, PPAP, control plan, or traceability
Commercial comparison
Questions that separate a serious quote from a placeholder quote
| Defect evidence | Attach photos, inspection reports, section images, X-ray notes, leak-test results, or machining-scrap notes so the supplier can separate casting risk from machining or handling risk. |
|---|---|
| Critical zones | Mark the locations where porosity, shrinkage, leakage, flatness, bore position, surface finish, or cosmetic defects matter. Critical zones change process planning and inspection cost. |
| Inspection scope | State method, sampling frequency, acceptance criteria, and record format. CMM, X-ray, CT, leak test, FAI, or PPAP should be quoted as part of the supply scope. |
| Supplier comparison | Compare suppliers by defect-prevention logic, DFM questions, inspection plan, corrective-action thinking, and quote assumptions, not only by unit price. |
| Best next action | Send the drawing package with defect evidence and inspection expectations so Bohua can review process route, tooling risk, machining scope, and approval records. |
Evidence next steps
Review product proof before the RFQ form
These links are mapped in schema as product evidence, product-example RFQ guides, buyer resources, quote intent, or landing pages so crawlers can connect this quote route to the right proof before the buyer submits drawings.
Buyer guide
Common casting defects buyer guide
Review the matching landing page, then return here or continue into the RFQ form with clearer commercial assumptions.
Open landing →Landing page
Quality-control and inspection evidence
Review the matching landing page, then return here or continue into the RFQ form with clearer commercial assumptions.
Open landing →Buyer resource
Supplier capability sheet
Review the matching landing page, then return here or continue into the RFQ form with clearer commercial assumptions.
Open landing →Buyer resource
Supplier evaluation checklist
Review the matching landing page, then return here or continue into the RFQ form with clearer commercial assumptions.
Open landing →Buyer guide
CMM inspection requirements guide
Review the matching landing page, then return here or continue into the RFQ form with clearer commercial assumptions.
Open landing →Buyer guide
PPAP Level 3 casting checklist
Review the matching landing page, then return here or continue into the RFQ form with clearer commercial assumptions.
Open landing →Buyer guide
Pump leak-test acceptance criteria guide
Review the matching landing page, then return here or continue into the RFQ form with clearer commercial assumptions.
Open landing →Quote intent
China casting supplier comparison
Review the matching landing page, then return here or continue into the RFQ form with clearer commercial assumptions.
Open landing →Quote intent
Second-source casting RFQ
Review the matching landing page, then return here or continue into the RFQ form with clearer commercial assumptions.
Open landing →Quote intent
A356-T6 pressure-tight pump RFQ
Review the matching landing page, then return here or continue into the RFQ form with clearer commercial assumptions.
Open landing →Landing page
A356 material and inspection route
Review the matching landing page, then return here or continue into the RFQ form with clearer commercial assumptions.
Open landing →Landing page
Leak-tight casting planning
Review the matching landing page, then return here or continue into the RFQ form with clearer commercial assumptions.
Open landing →FAQ
Questions buyers usually ask on quote-intent pages
When should buyers use the quality-risk RFQ route?
Use it when porosity, shrinkage, leakage, dimensional drift, surface defects, CMM records, X-ray scope, FAI, PPAP, or supplier quality recovery affects the quote. Use a product-family quote page when the defect risk is secondary to a known part family.
What evidence should be attached if defects already appeared?
Attach photos, defect location marked on the drawing, inspection method, sample or batch context, alloy and heat-treatment notes if known, machining exposure details, and the current acceptance standard or customer rejection reason.
Can Bohua review a defect-risk project before a final quote?
Yes. Bohua can review the drawing, process route, alloy, tooling status, machining exposure, and inspection plan before quoting. The useful response depends on the buyer sharing enough evidence to identify the actual risk.
Can this page replace drawing-specific quality approval?
No. Defect risk depends on drawing geometry, process route, alloy, tooling, melt control, machining exposure, inspection criteria, and customer approval requirements. The RFQ should define the risk and evidence required for review.
Ready to turn comparison traffic into a real RFQ?
Send the drawing package, commercial assumptions, and contact path through the RFQ form so the quote can move faster from evaluation to action.
Send RFQ / contact engineering