Strict reliability test

Material test

• Test Purpose Tests to manage the changes in physical properties due to the ingredients, heat treatment, impurities, casting conditions, etc. of AL alloys
• Test type Component test, tensile test, hardness test, specific gravity test, X-ray
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  Testing equipment
  Spectrum meter

  Equipment that measures the composition ratio of alloy elements by analyzing the emitted spectrum
  after emitting light from a specimen with electrical or thermal energy.

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  Testing equipment
  UTM(Universal Testing Machine)

  Equipment that measures strength, elongation, etc. by applying tensile force to materials

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  Testing equipment
  Brinell hardness testing machine

  Equipment to measure Brinell hardness value by rolling the material under a constant test load and
  converting the diameter of the indentation into hardness value

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  Testing equipment
  Specific gravity tester

  Equipment for measuring specific gravity to check the hydrogen gas content of the material specimen

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  Testing equipment
  X-ray

  Equipment that uses X-rays to detect internal defects without destroying the product

Durability test

• Test Purpose Verification of wheel durability and reliability
• Test type
  Impact test, Bending test, Driving test, Bi-Axial test, CASS test, Salt spray test, Filiform test, etc.
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  Testing equipment
  Impact testing machine (13 degrees)

  Durability re-enactment test for unexpected impact on wheels when driving a vehicle

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  Testing equipment
  Impact testing machine
  (30 degrees/90 degrees)

  Durability re-enactment test for unexpected impact on wheels when driving a vehicle

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  Testing equipment
  Cornering fatigue test machine

  Durability reproduction test against the fatigue load applied to the wheel during corner driving of the vehicle

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  Testing equipment
  Dynamic fatigue test machine

  Durability reproduction test for fatigue load on wheels when vehicle is driven straight

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  Testing equipment
  Bi-Axial test machine

  A combined durability test that reproduces both bending and driving tests by programming road
  conditions similar to actual vehicle driving.

• 

  Testing equipment
  CASS / Salt spray test machine

  Accelerated corrosion reproduction test to verify the paint quality of wheels against external
  environmental influences such as salt, acid rain, and snow removal agents

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  Testing equipment
  Filiform test machine

  Corrosion reproduction test to verify the paint quality of the wheels for high temperature,
  humid external environmental impacts

Inspection to match fitment performance

Performance inspection

• Inspection purpose A test to verify that the product is built to meet the specifications and can implement the features
  required for mounting on the vehicle.
• Inspection type Dimension and shape inspection, balance and runout inspection
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  Inspection equipment
  Coordinate measuring machine

  A device that measures the dimensions and shape of products in width, length, and height

• 

  Inspection equipment
  Surface roughness meter

  A device that measures the degree of fine irregularities on the surface of a product

• 

  Inspection equipment
  Balance & Runout measuring machine

  A device that measures the weight imbalance and vibration during product rotation