Manufacturing service
Custom Die Casting
Aluminum and zinc die casting support with tooling review, post-machining, finishing, and inspection planning.
- Casting DFM
- Die and trim tooling coordination
- Post-casting CNC machining
- Finishing and leak-test review

Service overview
Casting, post-machining, and finishing planned as one route.
Die casting forms metal under pressure in a reusable die and is suited to repeat production of housings, covers, heat sinks, frames, and structural parts with integrated ribs and bosses. Aluminum and zinc alloy options are reviewed by application.
The process route considers draft, wall transitions, metal flow, vents, ejector locations, trim, porosity-sensitive features, post-machined datums, threaded inserts, finish, and any sealing or leak-related requirements.

Aluminum die cast housings with ribs, bosses, thin walls, and selectively machined interfaces.
Key capabilities
Process planning connected to the drawing and end use.
The manufacturing route is reviewed around geometry, material behavior, critical features, appearance, inspection, and downstream assembly.
Die and trim tooling coordination
Post-casting CNC machining
Finishing and leak-test review
Typical parts
Parts commonly reviewed for die casting.
Industries
Applications supported across engineering teams.
Materials
Material options linked to technical guidance.
Surface Finishes
Surface Finishes reviewed for material and application fit.
Tolerances and design guidance
Define what is functionally critical.
As-cast dimensions, post-machined interfaces, flatness, sealing faces, and threaded features should be separated clearly on drawings. Casting shrinkage, draft, wall thickness, die condition, and machining datums affect capability.
Use smooth wall transitions and practical draft for release.
Keep ribs and bosses balanced to support filling and reduce sink risk.
Define which faces are as-cast and which require post machining.
Identify sealing, leak-test, cosmetic, and porosity-sensitive regions clearly.
Quality assurance
Inspection planning starts with the drawing.
Inspection points are selected from the controlled drawing, functional risk, process behavior, appearance criteria, and documentation requested for the project.
Alloy and tooling requirement review
Casting appearance and trim inspection
Post-machined feature checks
Finish, assembly, and specified functional-test review
Manufacturing workflow
A controlled route from RFQ to shipment.
The exact route changes with process and project risk, but each stage keeps the approved drawings and requirements in view.
- 01
Casting DFM
Review alloy, wall sections, draft, flow, trim, ejectors, machining, and finish.
- 02
Die and sample planning
Coordinate tooling, sample criteria, and critical inspection requirements.
- 03
Casting and secondary operations
Cast, trim, machine, deburr, finish, and assemble as specified.
- 04
Final release
Inspect drawing requirements, appearance, and specified functional checks.
Related case study
A structured project type, not an invented customer story.
Project-type example
Die Cast Motor Housing
Project-type example awaiting verified casting records
Review project structureFAQ
Die Casting questions from engineering and sourcing teams.
What should I provide for a die casting quotation?
Send a 3D CAD file when available, a 2D drawing for critical dimensions and tolerances, material, quantity, finish, inspection, and delivery requirements. An engineer reviews the package before quotation.
Can die cast parts include post-machining?
Yes. Sealing faces, bores, threads, bearing seats, and other controlled interfaces can be reviewed for secondary CNC machining after casting.
What information helps with casting DFM?
Provide the part model and drawing, alloy preference, annual or project quantity, cosmetic zones, machining callouts, finish, leak or sealing needs, and any assembly interfaces.
How is lead time determined?
Lead time depends on geometry, material availability, quantity, tooling or setup requirements, surface finishing, inspection, and delivery needs. Timing is reviewed with the quotation rather than presented as a fixed promise.
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View serviceStart your RFQ
Upload your drawings and receive an engineer-reviewed quotation.
Share the process, material, quantity, finish, tolerance, and delivery requirements. contact@kewei-kw.com / +86-13929495765