As-cast geometry
Review walls, ribs, bosses and openings together with draft and the proposed parting line. Mark cosmetic surfaces and areas where gate or ejector marks would affect assembly or appearance.
Tooling · Secondary machining · Acceptance
Изделия литья под давлением
Plan tooling, casting, machining and inspection around the finished part.
Die casting projects extend beyond the casting itself. Review tooling, secondary machining, finishing and inspection against the final part requirements.
Share your drawings and production requirements with GPT Precision so the tooling, casting, secondary operations and acceptance scope can be reviewed as one project.
Image placeholderDie-cast component & machined interfacesPhoto to be added
Define the cast and machined features
Distinguish as-cast geometry from features requiring secondary machining. Connect tooling decisions with the fit, finish and function of the delivered part.
Machined interfaces
Identify mating faces, bores, threads and sealing surfaces. Define the datums, required tolerances and machining allowance so the casting and machining plans can be evaluated together.
Finished-part condition
Specify surface finish, coating requirements and any areas that need masking. Include the final assembly condition and explain which characteristics determine acceptance.
Define material and tooling requirements
Confirm the alloy, part design and proposed production route against the intended application before committing to a tool.
Material requirements
Provide the alloy designation and standard, or describe the performance requirements if selection is open. Include relevant strength, corrosion, temperature and finish requirements. Material availability and suitability need project-specific confirmation.
Tooling requirements
State the drawing revision, order quantities and repeat demand. Discuss sampling, approval criteria, tool ownership, maintenance and design-change responsibility. Record the agreed scope in the quotation and order documents.
Set acceptance criteria before tooling
Define dimensional, cosmetic and functional requirements separately. A clear acceptance plan helps identify the checks that need to be agreed during quotation.
Image placeholderCritical faces & inspection featuresPhoto to be added
Dimensions and fit
Highlight critical dimensions, datum references and mating components. Specify how the part will be located and measured, including any checks required after machining or finishing.
Appearance
Identify visible surfaces and acceptable casting marks. Where appearance matters, provide an agreed reference sample or written criteria for texture, colour and permissible surface indications.
Internal integrity & function
Flag sealing, pressure or other functional requirements early. If porosity evaluation or leak testing is required, define the test conditions and acceptance limits. The method, availability and reporting scope need confirmation for the project.
Choose the production route around project maturity
Evaluate tooling investment and recurring part cost against the same finished-part specification. Include machining, finishing, инспекция, packaging and realistic demand in the comparison.
Design still evolving
Consider ЧПУ-обработка when design changes or early validation are central to the project. A machined prototype can support selected fit and assembly checks; casting-specific geometry and material behaviour still need separate evaluation.
Design ready for repeat production
Review die casting against the expected lifetime demand and the cost of tooling changes. Ask for tooling and recurring production costs to be identified separately. The economic crossover depends on the actual part and agreed scope.
What to include in your die casting RFQ
Send GPT Precision the available information and flag open decisions, so the project discussion starts from a shared brief.
Part definition
- 3D model and dimensioned drawing, with revision
- Alloy specification or required material properties
- Критические размеры, datums and mating features
Production scope
- Initial order quantity and expected repeat demand
- Existing tool details or new-tool requirements
- Обработка на станке, finish and packaging requirements
Acceptance & timing
- Cosmetic references and functional test requirements
- Required inspection records and sample approval process
- Target delivery date and project milestones
Lead time is evaluated according to the drawing, материал, and order quantity and confirmed during quotation or order review. Tooling and sample approval milestones should be included in the agreed schedule.
Die casting FAQs
Can every feature be left as cast?
Each feature needs review against its tolerance and function. Fits, threads or sealing interfaces may require secondary machining. Mark these features on the drawing so their relationship to the cast geometry is clear.
What tolerances should I specify?
Use the tolerances required for assembly and function, with clear datum references. Distinguish as-cast dimensions from machined dimensions. Achievable tolerances require review of the alloy, geometry, tooling and measurement method.
When does die casting become economical?
The comparison is specific to the part. Tooling investment, материал, secondary operations and repeat demand all affect the result. Compare quotations for the same finished-part specification and quantities.
What should be approved before repeat production?
Agree the current drawing revision, материал, sample acceptance criteria, inspection scope and any open deviations. Record how subsequent design or process changes will be reviewed.
Can I request leak testing or internal integrity checks?
Include the required test, conditions, acceptance limits and reporting format in the inquiry. These requirements need to be assessed before tooling; availability and responsibility must be agreed for the project.
Which alloys can be considered?
Send the required alloy designation and standard, or describe the operating conditions and performance needs. The proposed alloy and its availability need confirmation against the part geometry, finish and production requirements.
Bring the drawing and production plan
Discuss your drawings, expected demand and open requirements with GPT Precision to establish the scope for your die casting project.
For related requirements, explore ЧПУ-фрезеровку and quality assurance.
