Quality Gate

Total Quality Management: Our "Zero-Defect" Process

"At Zhejiang Mingtu Auto Parts Co.,LTD, we understand that a control arm is a safety-critical component. Our quality control system is built on the IATF 16949 standard, ensuring every part that leaves our factory meets or exceeds OEM specifications for strength, fitment, and durability."

🔬 The 4 Stages of Quality Inspection

1. Raw Material Verification (The Foundation)

We don't start production until the metal is proven perfect.

• Chemical Analysis: Every batch of aluminum 6061-T6 or 7075 is tested using a Spectrometer to ensure the alloy composition is exact.

• Ultrasonic Scanning: We scan raw billets for internal voids or cracks before they ever reach the forging press.

2. Precision Forging & Heat Treatment Control

• Thermal Monitoring: We use infrared sensors to ensure aluminum is forged at the precise "plastic" temperature to maintain grain flow integrity.

• Hardness Testing: After our in-house T6 Heat Treatment, we use Brinell or Rockwell Hardness Testers to verify the part has reached maximum structural strength.

3. Dimensional Accuracy (The Perfect Fit)

• CMM Inspection: We use Coordinate Measuring Machines (CMM) to check 3,000+ models against original OEM blueprints.

• Tolerance Checks: Critical dimensions (ball joint seats and bushing bores) are held to tolerances as tight as +/-0.02mm.

• Go/No-Go Gauging: 100% of threaded holes are manually checked with precision gauges.

4. Environmental & Stress Testing

• Fatigue Testing: We subject samples to millions of cycles under high load to simulate years of heavy driving.

• Salt Spray Testing: Parts are placed in a salt-fog chamber for 1,000+ hours (per ASTM B117) to ensure our coatings (anodizing/electrophoresis) will never rust or peel.

Our Quality Lab Equipment

CMM (3D Scanner)

Hexagon / Zeiss

High-precision dimensional verification

Spectrometer

Oxford / Shimadzu

Material chemical composition analysis

Fatigue Tester

MTS / Custom

Durability and life-cycle simulation

Salt Spray Chamber

Standard

Corrosion resistance testing

Universal Tester

High-Load

Tensile and yield strength verification

Choosing us as your supplier of hanging parts means choosing a professional team, a reliable business partner and choosing success.