See how Atlas Fibre routes FR-4 sheet (MIL-I-24768/27, TYPE GEE-F) on our ‘multiplex’ CNC machining routers.
The glass reinforcement in FR-4 makes it abrasive to cut. Sheet hold-down, tooling selection, feeds and speeds, and dust control are all critical since they help prevent delamination, edge chipping, and premature tool wear.
FR-4 is a glass-reinforced epoxy laminate (NEMA grade FR-4) that is flame-retardant and widely used for electrical insulation, electronics, test fixtures, and other applications that need dimensional stability and dielectric strength.
Atlas Fibre manufactures thermoset composite laminates and machines these materials into precision components. Questions about our approach or interested in learning more about our composite machining capabilities? Request a quote or connect with our team.
