Din 16742 - Tg5 ((free)) Jun 2026

Selecting TG5 directly influences how a mold tool is engineered. Mold cavities are oversized to account for processing shrinkage. To safely hitting TG5 targets, engineers frequently leverage a strategy known as . Critical part features are intentionally designed "too small" on the plastic side, meaning the corresponding mold steel is left "too large". After first article inspection (FAI) samples are evaluated, the toolmaker removes tiny amounts of steel to dial in the perfect nominal dimensions. Tool-Specific (W) vs. Non-Tool-Specific (NW) Dimensions

: 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.

Or, to combine:

If we look at a nominal dimension of :

Standard commercial tolerances. These are easier to achieve, more cost-effective, and suitable for consumer goods where minor dimensional variations do not impact performance. 3. Factors Determining TG5 Feasibility din 16742 - tg5

Key characteristics include:

Discuss material choice with your molder, as some materials make TG5 difficult to achieve.

Interior cabin components, specialized switchgear, and drone internal brackets utilize TG5 to save weight through plastics without sacrificing the rigorous alignment required by aerospace assembly protocols. High-End Consumer Electronics

Injection moulding is the primary manufacturing method associated with TG5. For prototype and low-volume production, can also achieve TG5 tolerances, with a minimum tolerance of ±0.1 mm and general tolerances of 0.4 – 0.5% of the nominal dimension. Selecting TG5 directly influences how a mold tool

The following table lists the tolerance values for across nominal size ranges, as specified in the standard:

: Engineers are advised by firms like Pekago Covering Technology to design parts at the "middle" of the tolerance field to allow for material fluctuations.

Represents high-precision industrial molding . It is the boundary line where standard production practices meet advanced engineering. Achieving TG5 requires strict optimization of process controls, high-quality mold construction, and premium-grade resins.

A unique aspect of DIN 16742 is that tolerance groups are often correlated with material behavior. TG5 implies the use of materials that offer moderate stability. Non-Tool-Specific (NW) Dimensions : TG5 is considered the

TG5 allows minimal drafts if surfaces are polished, but too little draft increases wear and variability.

Tolerance Group 5 is widely utilized across industries where structural integrity, fluid containment, and seamless mechanical assembly are vital. Automotive Engineering

DIN 16742 is designed for original moulding processes with tools closed on all sides, such as injection moulding, injection compression moulding, and compression moulding of non-porous moulded parts. If special process variants are used, an analogous application of the standard is possible after agreement with the moulded part manufacturer.