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Dyna-Max Treatment Improves Die Life |
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Dynamic Surface Technologies, Canton, Mich., has announced a new die surface treatment, the Dyna-Max process, which is a duplex diffusion process incorporating the Dyna-Blue process with a low temperature (575C) chromium carbonitride deposition layer that does not soften the hardened steel matrix like CVD coatings.
It also alleviates flaking, peeling, and delamination associated with PVD coatings. The Dyna-Blue layer acts as a catalyst to diffuse the chromium into the steel and also provides excellent support for the extremely hard (1520 Vickers) surface.
A tool performance study was conducted at a diecasting facility to provide real life test data comparing Dyna-Blue, Dyna-Max, and a PVD chromium nitride coating. The Dyna-Max process yielded
59,425 shots while the PVD chromium nitride process yielded 18,000 shots. The test tool was a die cast core near an end gate that experiences an extreme amount of wash out/wear.
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