Laser additive manufacturing of gas permeable structures

Christoph Klahn, Florian Bechmann, Siegfried Hofmann, Michael Dinkel & Claus Emmelmann
Laser additive manufacturing offers a variety of new design possibilities. In mold making laser additive manufactured inserts with conformal cooling channels are already state of the art. Pneumatic ejectors for injection molds are a new application for laser additive manufacturing. The pneumatic ejectors require a durable gas permeable material. This material is produced by placing the scan vectors for the laser additive manufacturing process in a defined pattern. Trials with different plastics proofed the function...
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