Testing methods for aluminum forgings

1. Chemical composition testing

Spectral analysis: Use a spectrometer to detect the chemical composition of forgings to ensure compliance with standards.

Chemical analysis: detecting the content of specific elements through chemical reagents.

2. Mechanical performance testing

Tensile test: to test the tensile strength, yield strength, elongation, etc. of forgings.

Hardness testing: Use Brinell hardness tester or Rockwell hardness tester to test the hardness of forgings.

Impact test: to test the impact toughness of forgings.

3. Size and shape detection

Three coordinate measurement: Use a three coordinate measuring instrument to check the dimensional accuracy of forgings.

Calipers and micrometers: manually measure the outer diameter, inner diameter, wall thickness, etc. of forgings.

Contour gauge: detects the shape tolerance of forgings.

4. Surface quality inspection

Visual inspection: Check the surface of the forging for defects such as cracks, folds, bubbles, etc.

Surface roughness testing: Use a surface roughness meter to test the surface smoothness of forgings.

5. Internal quality inspection

Ultrasonic Testing (UT):

Use ultrasonic flaw detector to detect defects such as cracks, pores, inclusions, etc. inside forgings.

Suitable for detecting large forgings or complex shaped forgings.

X-ray testing (RT):

Use an X-ray flaw detector to detect internal defects in forgings.

Suitable for detecting small forgings or thin-walled forgings.

Magnetic Particle Testing (MT):

Suitable for detecting surface or near surface defects such as cracks, folds, etc.

Only applicable to ferromagnetic materials, not suitable for aluminum forgings.

Penetration testing (PT):

Use penetrant to detect defects such as cracks and pores on the surface of forgings.

Suitable for detecting non-magnetic materials such as aluminum alloys.

6. Metallographic analysis

Microstructure observation: Use a metallographic microscope to observe the grain size and microstructure uniformity of the forging.

Defect analysis: Analyze defects such as inclusions, pores, and cracks inside the forging.

7. Other detection methods

Hydrostatic test: to test the sealing and pressure resistance performance of forgings.

Fatigue test: to test the fatigue life of forgings under cyclic loading.

Corrosion test: to test the corrosion resistance of forgings in specific environments.