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Precision Engineering: The Forging Journey
Precision Engineering: The Forging Journey
At Zhejiang Mingtu Auto Parts Co.,Ltd, we transform high-grade aluminum into safety-critical suspension components through a rigorous, multi-stage forging process. Here is how we ensure every control arm meets OEM-level performance.
1. Material Selection & Inspection
1. Material Selection & Inspection
Action: We source premium 6061-T6 or 7075 aluminum alloy ingots.
The Technical Edge: Every batch undergoes Spectrometer Analysis to verify chemical composition before production begins.
2. Custom Tooling & Die Design
2. Custom Tooling & Die Design
Action: Our engineers use CAD/CAM and Finite Element Analysis (FEA) to design the forging dies.
The Technical Edge: We simulate metal flow to eliminate potential "cold shuts" or weak points before the first part is even forged.
3. Precision Heating & Forging
3. Precision Heating & Forging
Action: Aluminum billets are heated to a precise plastic state (approx. 400 ℃ – 480℃) and forged in high-tonnage presses.
The Technical Edge: Forging creates a continuous grain flow that follows the contour of the control arm, providing vastly superior strength compared to casting.
4. T6 Heat Treatment
4. T6 Heat Treatment
Action: Parts undergo a solution and aging process (T6) to reach their maximum mechanical properties.
The Technical Edge: This stabilizes the molecular structure, achieving a Tensile Strength of ≥ 290MPaand a Yield Strength of 240≥MPa.
5.Precision CNC Machining
5.Precision CNC Machining
Action: Post-forging, the parts are moved to 4-axis CNC centers to machine ball joint seats, bushing bores, and mounting points.
The Technical Edge: We maintain tolerances as tight as +/-0.02mm to ensure a perfect fit with the vehicle's chassis.
6. Surface Finishing & Coating
6. Surface Finishing & Coating
Action: Parts are deburred and then treated with Anodizing (Type II/III) or Electrophoretic Coating.
The Technical Edge: This provides a 1000+ hour salt-spray resistant finish, protecting the aluminum against road salt and oxidation.
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