Small-Size Cores

Overview

Small-size cores are compact core components used in molding and die-casting processes to form precise internal features such as small cavities, holes, or channels. These cores are particularly challenging due to their reduced diameter, necessitating high strength, thermal stability, and dimensional accuracy to withstand harsh casting conditions and buoyancy-induced stresses.

Small-Size Cores

Key Features

Structural Strength & Dimensional Stability
Despite their small size, these cores must resist deformation from thermal and buoyant forces during casting, using materials/processes that offer high strength-to-size performance.vrfoundries.comMechgrace
Thermal Resilience
Positioned deep in the mold and surrounded by heavy casting sections, small cores need efficient heat dissipation solutions to avoid localized overheating or weld-up.
Precision Machining & Custom Shapes
These cores are often precisely machined using CNC, fine-grinding, or drilling methods, retaining tight tolerances for features often smaller than a few millimeters.
Enhanced Surface Finish
Smooth, polished surfaces reduce risk of metal adhesion and ensure ease of demolding, which is critical for small and delicate features.
Material & Coating Options
High-strength steels, carbide, or coated variants enable these cores to endure repeated cycles with minimal wear—even at micro-scale dimensions.