A Multi-Cavity Die Casting Die works under heat and pressure, so the design problem is thermal: metal has to fill, freeze and release at a rate the cycle time depends on. This page covers a Multi-Cavity Die Casting Die built in maraging steel inserts at the gate for automotive structural components work: die design with flow simulation, EDM detail and thermal balancing. The tool is designed around the part and the volume rather than copied from a previous job.
In practice the difficulty is rarely the nominal size. cavity tolerance ±0.05 mm is held on the features that locate the part in the assembly, and the process is set up so that the first piece and the five hundredth measure the same way.
Specification
| Process | Die design with flow simulation, edm detail and thermal balancing |
|---|---|
| Material / configuration | maraging steel inserts at the gate |
| Size / capacity | cavity tolerance of ±0.05 mm |
| Tolerance | cavity tolerance ±0.05 mm |
| Surface finish | polished, nitrided or shot blasted cavity surfaces |
| Application | multi-cavity die casting die for automotive structural components |
| Inspection | Dimensional report, material certificate, first article report on request |
| Lead time | 7–15 working days for samples, 3–4 weeks for production |
| Minimum order | 1 piece for prototypes, from 50 pieces for production pricing |
Manufacturing process
Production begins with a drawing and material review. Stock is certified, the operation sequence is fixed, and die design with flow simulation, EDM detail and thermal balancing is carried out on equipment maintained to hold cavity tolerance ±0.05 mm over a full shift, not just on a first piece.
Material is purchased against a certificate and checked on receipt, so the composition is known before any cutting starts. Work in progress is identified by part number and operation, and the finished parts are deburred, cleaned and protected before they leave the machine area.
Typical applications
Most of the work supplied in this category falls into the following examples.
- Structural automotive brackets.
- Heat sink and lighting housings.
- Gear box and pump bodies.
- Consumer appliance frames.
- Electric motor housings.
Quality control and documentation
Inspection is not a final formality. Dimensions are checked during the cycle and again at the end, so drift is corrected while there is still stock to remove.
Material certificates to EN 10204 3.1, dimensional reports and first article inspection reports are issued with the shipment where the application requires them. Calibration dates and measurement uncertainty are recorded alongside every result.
Ordering, lead time and packaging
Orders start from a single piece. Samples are quoted from the 3D model, and production pricing follows once quantity, finishing and inspection are agreed.
Frequently asked questions
How is porosity controlled?
By gating and venting designed from flow simulation, plus vacuum assistance on structural parts. Impregnation is a repair, not a substitute for correct fill.
What die life should be expected?
Aluminium dies in H13 typically deliver 80,000 to 150,000 shots with scheduled maintenance. Zinc tools run longer because the melt temperature is far lower.
How long does delivery take?
Sample parts are typically shipped in 7 to 15 working days after drawing approval. Production batches run 3 to 4 weeks depending on quantity, finishing and inspection requirements.
Send the drawing or the 3D model for a quotation. Include material, quantity, tolerance and finish, and a detailed quote with lead time is returned within one working day.
