TS 88-44 ISO 128-44

TS 88-44 ISO 128-44 is the Turkish edition of the ISO 128-44 family item dealing with the general principles for presenting sections on mechanical engineering drawings. In practical drafting terms, sections are used to reveal internal features that cannot be understood clearly from external views alone, making the drawing easier to read and interpret.

According to the scope, this standard covers the general rules for section presentations following the orthographic projection methods specified in ISO 5462-2. In general technical drawing practice, section views help communicate wall thicknesses, internal cavities, grooves, holes and other hidden geometry. The important drafting distinction is not just where a cut is imagined, but how the cut, the exposed surfaces and the resulting view are presented consistently on the drawing.

Why section presentation matters in mechanical drawing

Sectioning is one of the core communication tools in engineering graphics because it reduces ambiguity and supports clearer understanding during design, manufacture and inspection. It works alongside other presentation methods such as ordinary views, auxiliary views and hidden lines, but it is especially valuable when the interior form is more important than the outside outline. This part of ISO 128 addresses the presentation logic for those sectional representations.

• Addresses general principles for section presentation on mechanical engineering drawings.
• Works in conjunction with the projection methods defined in ISO 5462-2.
• Helps communicate internal geometry more clearly than exterior views alone.
• The listed TSE edition is withdrawn.