ISO 15614-7:2016 金属材料の溶接手順の仕様と認定—溶接手順テスト—パート7：オーバーレイ溶接 | 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 10, Quality management in the field of welding.

This second edition cancels and replaces the first edition (ISO 15614-7:2007), which has been technically revised.

ISO 15614 consists of the following parts, under the general title Specification and qualification of welding procedures for metallic materials — Welding procedure test:

• Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
• Part 2: Arc welding of aluminium and its alloys
• Part 3: Fusion welding of non-alloyed and low-alloyed cast irons
• Part 4: Finishing welding of aluminium castings
• Part 5: Arc welding of titanium, zirconium and their alloys
• Part 6: Arc and gas welding of copper and its alloys
• Part 7: Overlay welding
• Part 8: Welding of tubes to tube-plate joints
• Part 10: Hyperbaric dry welding
• Part 11: Electron and laser beam welding
• Part 12: Spot, seam and projection welding
• Part 13: Upset (resistance butt) and flash welding
• Part 14: Laser-arc hybrid welding of steels, nickel and nickel alloys

Requests for official interpretations of any aspect of this part of ISO 15614 should be directed to the secretariat if ISO/TC 44/SC 10 via your national standards body, a complete listing which can be found at www.iso.org .

Introduction

This part of ISO 15614 is one of a series of International Standards, the details of which are given in ISO 15607:2003, Annex A.

All new welding procedure tests are intended to be carried out in accordance with this edition of ISO 15614-7 from the date of its publication. However, qualifications performed in accordance with the previous editions of this part of ISO 15614 are still valid and it is not considered necessary to perform additional tests to fulfil its requirements for any application with reference to previous editions. Nevertheless, in order to comply with the requirements of the present edition it may be necessary to perform additional tests for previously qualified WPS.

1 Scope

This part of ISO 15614 specifies how a preliminary welding procedure specification for overlay welding is qualified by welding procedure tests.

This part of ISO 15614 defines the conditions for execution of welding procedure tests and the range of qualification for welding procedures for all practical welding operations within the range of variables listed in Clause 8.

This part of ISO 15614 applies to all welding processes suitable for overlay welding. In situations where qualification is carried out on a pre-production test piece, the qualification is performed in accordance with ISO 15613 except that, as far as possible, the testing is according to this part of ISO 15614. Building up and repair of parent metal is covered by ISO 15613 or ISO 15614-1.

This edition of ISO 15614-7 is applicable to all new welding procedure qualification tests. It does not invalidate previous welding procedure tests made in accordance with previous editions of this part of ISO 15614. Where additional tests are required by the present edition, it is only necessary that those additional tests be carried out on a test piece made in accordance with the existing WPS and this part of ISO 15614.

If buttering is used for welding between dissimilar materials, the welding procedure is qualified in accordance with ISO 15614-1. This buttering may be required for weld combining different material structure or properties, e.g. joining martensitic steels or ferritic steels with austenitic steels.

Additional tests may be required by application standards.

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 15607, ISO/TR 25901 and the following apply.

Bibliography