Plastics are categorized by their . Crystalline materials (like POM or PA) tend to shrink and warp more than amorphous materials (like ABS or PC), which can move a part out of a specific TG rating if not managed. 3. Production Environment
DIN 16742 includes basic geometric tolerances at each TG level. For TG5, typical default values (without explicit GD&T callout): din 16742 - tg5
For a 50 mm flat surface in TG5, permissible flatness deviation is roughly . Compare to TG8 (0.02 mm) which requires mirror-finish tool surfaces. Plastics are categorized by their
: TG5 is considered the standard precision category. It is often applied as a general tolerance across various plastic materials, such as ABS or PC+ABS, to ensure a balance between manufacturing cost and part quality. : TG5 is considered the standard precision category
: Interestingly, high-quality vacuum casting can also achieve TG5 levels of accuracy, making it a viable bridge between prototyping and mass production.
The feature regarding refers specifically to the tolerance grade for thermoplastics injection molded parts .