Din 16742 - Tg5 [repack]

| If your part requires... | TG5 Recommended? | | :--- | :--- | | Sliding fit with metal shaft | | | Ultrasonic welding alignment | Yes | | Living hinge geometry | No (Use TG3 – residual stress affects hinge) | | Overmolding with silicone | Yes (for shut-off surfaces) | | Large part > 300 mm | No (Use TG3/TG4 – warp dominates) | | High-volume consumer goods (>1M parts) | Yes (tool amortization justifies precision) |

Choosing the right tolerance group is a delicate balance. While tighter groups (TG1-TG4) offer extreme precision, they significantly increase manufacturing costs due to more complex mold designs and tighter process controls. Manufacturing Realities din 16742 - tg5

: Achieving TG5 depends heavily on material behavior. For example, low-shrinkage materials like ABS are easier to hold to TG5 than crystalline materials (e.g., PA or POM) which exhibit higher shrinkage and warpage. | If your part requires