Analysis of BMC molding process parameter control points

BMC molding process parameter control

BMC molding is the most commonly used process for thermoset composite parts. Key parameters: 1) Mold temperature: 140-170C (affects cure speed and part properties), 2) Injection pressure: 80-200 bar (affects fill quality and fiber orientation), 3) Injection speed: slow-fast-slow profile recommended, 4) Cure time: 30-90 seconds depending on part thickness, 5) Back pressure: 5-15 bar for material homogenization.