The cause and source of the explosion and fire was determined to be aluminum dust, which was ignited by the sparks from a hand grinder being used by a worker: Explosion at auto supplier near Grand Rapids caused by sparks that ignited aluminum dust
Michigan automotive wheel plant severely damaged in explosion
Dicastal North America plant in Michigan significantly damaged after explosion
A plant that supplied Ford, GM, Stellantis, Toyota and others with aluminum alloy wheels exploded late Friday. Metal fire creates unique challenges.
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