TS EN ISO 17677-1

TS EN ISO 17677-1 is a vocabulary standard for resistance welding, focused on the terms and definitions used in spot welding, projection welding and seam welding. Standards of this kind create a common technical language so that engineers, production teams and documentation authors can refer to the same welding concepts consistently.

The welding processes covered by the vocabulary

The document centers on three closely related resistance welding processes. Spot welding produces discrete weld spots at localized contact areas; projection welding uses formed projections or localized contact features to concentrate current and pressure; seam welding creates a continuous or overlapping joint along a line as the electrodes move. Distinguishing these terms matters because each process has its own geometry, tooling, joint formation and typical industrial use.

Why a vocabulary standard matters in welding

In general technical practice, a vocabulary standard defines names and meanings rather than prescribing how to perform the welding operation itself. That makes TS EN ISO 17677-1 useful in drawings, specifications, training material and quality documentation, where precise wording reduces ambiguity. The current edition is based on the official ISO languages, English and French, and also includes German equivalents; however, only the terms and definitions in the official languages are considered ISO terms and definitions.

• Provides shared terminology for spot, projection and seam welding.
• Anchors the vocabulary in the official ISO language versions.
• Includes German equivalents for reference.
• Standardizes language, not the welding process itself.