Custom High-Pressure Aluminum Die Casting Automotive Transmission Housing

Technical Specifications

Key Features & Engineering Advantages

1. Integrated Structural Integrity: The complex matrix of internal and external reinforcement ribs (ribbing architecture) is optimized through Finite Element Analysis (FEA) to ensure high load-bearing capacity while minimizing material volume.

2. Micron-Level Precision: Critical mounting flanges and bearing bores undergo secondary multi-axis CNC machining to achieve the tight tolerances required for high-speed gear rotation and fluid sealing.

3. Advanced Thermal Management: The high thermal conductivity of aluminum ensures rapid heat dissipation from moving parts, protecting the transmission system from overheating.

4. Porosity Control: Utilizing vacuum-assisted die casting and real-time X-ray monitoring, we minimize internal gas porosity, ensuring the housing remains leak-proof and structurally sound under high-pressure environments.

5. Lightweighting for E-Mobility: This aluminum-to-iron replacement strategy is essential for modern Electric Vehicles (EVs) to offset battery weight and extend driving range.

Manufacturing Process

• Our manufacturing approach for large-scale housings includes:

• Precision Tooling: Utilizing H13 hardened steel molds with advanced cooling channels to ensure consistent part quality and long tool life.

• High-Speed Injection: Precise control of the metal injection velocity to eliminate air traps in thin-walled sections.

• Post-Casting CNC: High-speed machining of all seal surfaces, bolt holes, and sensor ports.

• Leak Testing: 100% pressure/vacuum leak testing to ensure every housing meets IP67 or OEM sealing requirements.

FAQ

Q1: What is the maximum size/weight you can die cast?

 A: With our large-tonnage machines, we can produce aluminum castings up to 1000mm in length and weighing up to 20kg for automotive and industrial sectors.

Q2: How do you ensure the housing is leak-proof? 

A: We use vacuum-die casting to reduce internal porosity and perform 100% pressure-leak tests on every housing. All sealing faces are CNC-milled to achieve high flatness.

Q3: Can you handle Tier 1 automotive documentation? 

A: Yes. As an IATF 16949 certified factory, we provide full PPAP (Production Part Approval Process) documentation, including FMEA, Control Plans, and Dimensional Reports.

Q4: Do you offer prototyping before mass production?

 A: Yes, we provide CNC-machined prototypes or Rapid Tooling (Soft Molds) to allow for functional testing and design validation before investing in mass-production steel tools.

Packaging & Delivery

• Packaging: Neutral cartons with EPE foam protection, or custom branded packaging as required, to prevent damage during transit.

• Lead Time: Mold development: 15-25 working days; Mass production: 7-15 working days (adjustable based on order quantity).

• Payment Terms: T/T, L/C, and other standard international trade terms supported.

• Logistics Options: DHL, FedEx, sea freight, air freight, and other global shipping solutions available.