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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
Open high-pressure die casting die with machined cavities, runners, guide pillars and aluminum samples
Die casting support for housings, covers, frames, and heat-management components.

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 motor, gearbox, heat-sink and structural housings on a gray background

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.

01

Casting DFM

02

Die and trim tooling coordination

03

Post-casting CNC machining

04

Finishing and leak-test review

Typical parts

Parts commonly reviewed for die casting.

Motor housings
Gearbox covers
LED housings
Electronic enclosures
Heat-sink bodies
Structural frames
Mounting bases
Handle and control bodies

Industries

Applications supported across engineering teams.

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.

DG 01

Use smooth wall transitions and practical draft for release.

DG 02

Keep ribs and bosses balanced to support filling and reduce sink risk.

DG 03

Define which faces are as-cast and which require post machining.

DG 04

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.

QC 01

Alloy and tooling requirement review

QC 02

Casting appearance and trim inspection

QC 03

Post-machined feature checks

QC 04

Finish, assembly, and specified functional-test review

CMM inspection supportOptical measurement supportCalipers and micrometersThread and pin gaugesInspection documentation support

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.

  1. 01

    Casting DFM

    Review alloy, wall sections, draft, flow, trim, ejectors, machining, and finish.

  2. 02

    Die and sample planning

    Coordinate tooling, sample criteria, and critical inspection requirements.

  3. 03

    Casting and secondary operations

    Cast, trim, machine, deburr, finish, and assemble as specified.

  4. 04

    Final release

    Inspect drawing requirements, appearance, and specified functional checks.

Related case study

A structured project type, not an invented customer story.

FAQ

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.

Start 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

Upload Project Files
Request an Engineer-Reviewed Quote