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Forged Strength
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| Why is
forged aluminium so strong ? |
| Forging aligns
the grain structure of aluminium with the shape of the wheel. This
produces wheels with unrivalled strength that pass the most demanding
tests. TÜV, JWL- T, LBF tested and a five-year warranty without
any limitations on mileage. |
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| High strength
test results |
| The forged
Alcoa wheel (above right) withstands a load of 71,200 kg before
it deforms by 5 cm. The rim of the steel wheel is deformed this
much at only 13,600 kg. In other words, the Alcoa wheel is more
than five times as strong! |
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| Impact
test results |
The
Japanese JWL test simulates a truck hitting a high kerb at a speed
of 50 km/h. A 910 kg weight is dropped onto the tyre and wheel assembly.
The test is performed in the Alcoa technical centre in Pittsburgh
according to the Japanese CHIGI-15I-15III specifications. While
steel wheels show excessive deformation and cast aluminium breaks,
the Alcoa wheels pass the tests successfully.
The Forging Process
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| Alcoa
Forged wheel |
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| Cast
aluminium wheel |
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| Alcoa
forged wheel |
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| Cast
aluminium wheel |
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| Welded
steel wheel |
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