Iso13715

Use the symbol on a specific edge if that edge has a different requirement from the general note.

Rough, sharp, or overhanging material sticking out beyond the ideal geometry.

In mechanical engineering and product design, the interface between two surfaces (the edge) is often critical to function, safety, and assembly. However, strictly defining the micro-geometry of every edge on a complex part is impractical. Historically, this led to ambiguous specifications such as "break sharp edges" on drawings, which are open to subjective interpretation. iso13715

✅ – No ambiguity between design and production. ✅ Cost savings – Reduces individual dimensioning and misinterpretation. ✅ Safety & quality – Prevents sharp edges that cut or snag. ✅ Global compliance – Recognized worldwide, especially in automotive, aerospace, and machinery.

If you’ve ever seen cryptic symbols next to a 45° chamfer or a sharp edge on a drawing and wondered what they mean, this guide is for you. Use the symbol on a specific edge if

The latest version of the standard, ISO 13715:2017 , includes several specific documentation features: Iso 13715 Standard - sciphilconf.berkeley.edu

Whether you're designing a medical device or a heavy-duty gearbox, take five minutes to add an ISO 13715 edge condition note to your next drawing. Your machinists—and your customers' fingers—will thank you. However, strictly defining the micro-geometry of every edge

The standard provides a standardized method for indicating the condition of edges with undefined shapes on technical drawings . It uses graphical symbols to specify requirements for burrs, undercuts, and material transitions without needing a precise geometric dimension like a chamfer. Key Symbols & Indicators

ISO 13715 allows designers to place limits on both without needing to define the exact, complex shape of the edge, as this would be too expensive to manufacture and measure. 2. Key Definitions and Parameters in ISO 13715