seipo-die-casting-process-guide

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Master aluminum die casting with SEIPO’s expert guide. Learn steps, design tips, and how our IATF-16949 certified process ensures high-volume precision. Get a free quote!

Introduction

What is die casting, and why is it critical for lightweight, complex metal parts? In this Die Casting Process Guide, SEIPO—a leader in high-pressure aluminum die casting—breaks down how advanced techniques transform molten metal into precision components for automotive, aerospace, and electronics.

The Die Casting Process: Step by Step

1. Design & Tooling

   • SEIPO engineers optimize CAD models for manufacturability (draft angles, wall thickness).

   • Custom steel molds are machined to ±0.02mm tolerances.

2. Melting & Injection

   • Aluminum alloys (ADC12, A380) melted at 700°C+

   • High-pressure injection (1,000+ bar) fills molds in milliseconds.

3. Cooling & Ejection

   • Rapid cooling ensures dimensional stability.

   • Automated ejection minimizes part damage.

4. Trimming & Finishing

   • Excess material removed via CNC trimming.

   • Surface treatments: anodizing, powder coating, sandblasting.

Why Choose SEIPO’s Die Casting Process?

• Precision: Hold tolerances to ±0.05mm for complex geometries.

• Efficiency: High-volume production (50,000+ units/month).

• Material Expertise: ADC12, A360, A413 alloys for strength/weight balance.

• End-to-End Integration: Casting + CNC machining + QA in one facility.

“SEIPO’s process guide eliminated design flaws in our EV battery housing.”
— Automotive Tier-1 Supplier

Key Applications

• Automotive: Engine brackets, sensor housings, e-motor components

• Electronics: 5G heatsinks, drone enclosures, connector housings

• Industrial: Pump bodies, valve systems, robotic parts

Design Tips from SEIPO Engineers

1. Wall Thickness: Uniform walls (2-5mm) prevent defects.

2. Ribs & Bosses: Strengthen parts without adding weight.

3. Draft Angles: 1-3° ensures smooth ejection.

4. Gating Systems: Optimized flow reduces porosity.

Quality Assurance

Every part undergoes:

• X-ray inspection (porosity checks)

• CMM measurement

• Pressure testing

• IATF 16949 and ISO140001 certified protocols

Partner with SEIPO

Ready to leverage our Die Casting Process Guide for your project?
✅ Free Design Review
✅ Prototype in 15 Days
✅ High-Volume Production

Get Your Custom Quote Today!