ISO 18278-1:2015 抵抗溶接—溶接性—パート1：金属材料の抵抗スポット、シーム、およびプロジェクション溶接の溶接性を評価するための一般要件 | ページ 2

Foreword

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The committee responsible for this document is ISO/TC 44, Welding and allied processes, Subcommittee SC 6, Resistance welding and allied mechanical joining.

This second edition cancels and replaces the first edition (ISO 18278-1:2004), which has been technically revised.

ISO 18278 consists of the following parts, under the general title Resistance welding — Weldability:

• Part 1: General requirements for the evaluation of weldability for resistance spot, seam and projection welding of metallic materials
• Part 2: Evaluation procedures for weldability in spot welding

1 Scope

This part of ISO 18278 specifies procedures for assessing the generic weldability for resistance welding of uncoated and coated metals.

It is assumed for this and other linked standards that their application is entrusted to appropriately trained, skilled, and experienced personnel.

For the quality of welded structures, the relevant part of ISO 14554 is applicable. The specification of procedures is to follow guidelines as in ISO 15609-5.

The purpose of the tests are to

• a) compare the metallurgical weldability of different metals,
• b) assess the weldability of differing component designs, e.g. dimensional configuration, stack-up, projection geometry, etc.,
• c) investigate the effect of changes in welding parameters such as welding current, weld time, electrode force or complex welding schedules including pulse welding, current stepping etc. on weldability, and/or
• d) compare the performance of resistance welding equipment.

Precise details of the test procedure to be used will depend on which aspect of items a) to d) will be evaluated relative to the welding result obtained.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 17677-1, ISO 669, ISO/TR 581:2005, and the following apply.

Bibliography