Reaction Injection Molding Large PartsProject Overview:
Manufacturing Process: Reaction Injection Molding (RIM), M6 Insert
Molding Material: Polyurethane (Hei-Cast 8636-75)
Tooling Material: Epoxy Resin, Silicone Rubber
Part Dimensions: 743 × 512 × 315 mm (Thickness: 5/7/10/20 mm)
Quantity & Lead Time: 50 Units, 25 Days
This was an Engine Casing that was originally manufactured by the sheet metal fabrication with lots of welding. To save cost, customer modified the design of this casing to be Reaction Injection Molded. The different wall thicknesses of 5/7/10/20 mm brought challenge to shrinkage control.