TS EN ISO 12671

TS EN ISO 12671 is the Turkish edition of a standard about how thermally sprayed coatings are represented symbolically on drawings and related technical documentation. In practical engineering communication, this kind of notation helps designers, manufacturers, and inspectors describe where a coating is applied and how it is identified on a drawing without confusion. This record is withdrawn, but the subject remains relevant wherever surface engineering information must be communicated clearly in technical documentation.

Why thermally sprayed coatings need dedicated drawing symbols

Thermal spraying is a surface engineering process in which molten or semi-molten particles are propelled onto a substrate to build a coating. Such coatings may be used for wear resistance, corrosion protection, thermal insulation, or restoration of component surfaces. In drawing practice, symbolic representation is important because it separates the coating information from the base part geometry and makes it easier to identify the treated area, the extent of the coating, and any associated notes in a consistent way. In general technical context, this supports clearer manufacturing and quality communication.

What symbolic representation means in technical documentation

The title shows that this standard focuses on representation on drawings rather than on defining the spraying process itself. In technical documentation, such symbols usually serve as a compact language for surface treatment information, especially when different surfaces on the same component require different finishes or coatings. For thermally sprayed coatings, a standardized drawing convention helps prevent ambiguity about which face is coated, how the coated area is indicated, and how the surface treatment should be read alongside the rest of the part definition.

• The subject is the symbolic representation of thermally sprayed coatings on drawings.
• It supports consistent identification of coated areas in engineering documents.
• It helps keep surface-treatment information distinct from part geometry.
• As a withdrawn standard, it has historical and technical reference value.