Ingersoll and Bell 3D printed a 22 foot-long rotor blade mold in 75 hours

Manufacturing system provider Ingersoll Machine Tools has partnered with aviation company Bell to 3D print a 22 foot-long vacuum trim tool – a mold used for the production of helicopter rotor blades.

The vacuum trim tool in its as-printed form. Photo via Ingersoll.

The project, which resulted in major lead time savings, was completed using Ingersoll’s own large-format hybrid MasterPrint system, a gantry-based 3D printer with integrated 5-axis milling functionality. According to Ingersoll, the MasterPrint is the largest polymer 3D printer in the world. Designed specifically for the production of extra-large production parts, the system can be found at Ingersoll’s headquarters in Rockford, IL.

“We are continuously testing and advancing MasterPrint in our Development Center” said Chip Storie, CEO at Ingersoll. “Among Ingersoll’s short-term objectives is for MasterPrint to 3D print molds for aerospace that preserve the geometrical properties and tolerances, vacuum integrity and autoclave resilience normally obtained with traditional technology, but with the cost and time reduction only additive manufacturing can offer. The relentless progress our MasterPrint process has made in 2020 has finally made this target attainable.”

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