Chinese tool makers are gaining ground in precision aluminum tooling, according to a presentation this morning at the annual technical conference of the Society of Plastics Engineers. For starters, aluminum billet is cheaper in China than the United States, according to Peter Mooney, president of Plastics Custom Research Services. Then mold makers laminate billets and precision machine the shapes for molds. As a result, it’s less expensive to make machined aluminum molds for complex shapes. The tools are particularly important for rotational molding.
Oak Ridge National Laboratory has developed a surface preparation method to improve joining carbon composites with aluminum, with potentially far-reaching ramifications for high-volume industrial applications.
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