Automotive Industry

New process widens use of iron-block diesels; Compacted graphite iron is tricky but makes lighter engines.(News)

Automotive News Europe, July, 2004

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Byline: John Mortimer

Auto engine designers are turning to a long-neglected version of iron that can handle the much-higher internal pressures of modern diesel engines.

Compacted graphite iron, or CGI, has a different molecular structure that makes it stronger, stiffer and more resistant to metal fatigue than conventional gray-iron castings.

Those are excellent properties for engine blocks and cylinder heads, especially for new diesels operating at higher internal pressures to burn fuel more completely and meet stricter emissions rules.

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But because CGI is tricky to cast ...

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Automotive Industry

New process widens use of iron-block diesels; Compacted graphite iron is tricky but makes lighter engines.(News)

Automotive News Europe, July, 2004

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