: Structural foam molding, thick-walled parts, or highly semi-crystalline materials susceptible to severe, unpredictable shrinkage. Tool-Fixed vs. Non-Tool-Fixed Dimensions
: Interestingly, high-quality vacuum casting can also achieve TG5 levels of accuracy, making it a viable bridge between prototyping and mass production.
TG5 requires stricter control over the molding process. Anisotropic shrinkage (variations in shrinkage due to flow direction) is harder to manage at this level, meaning designers must work closely with molders to optimize gating and cooling. 2. Tooling Precision Requirements
: Structural foam molding, thick-walled parts, or highly semi-crystalline materials susceptible to severe, unpredictable shrinkage. Tool-Fixed vs. Non-Tool-Fixed Dimensions
: Interestingly, high-quality vacuum casting can also achieve TG5 levels of accuracy, making it a viable bridge between prototyping and mass production.
TG5 requires stricter control over the molding process. Anisotropic shrinkage (variations in shrinkage due to flow direction) is harder to manage at this level, meaning designers must work closely with molders to optimize gating and cooling. 2. Tooling Precision Requirements