ISO 13918:2017 溶接 — アークスタッド溶接用のスタッドとセラミックフェルール | ページ 2

Foreword

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The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives ).

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This document was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 10, Quality management in the field of welding.

This third edition cancels and replaces the second edition (ISO 13918:2008), which has been technically revised.

The main changes compared to the previous edition are as follows:

• a) everything according conformity evaluation has been deleted from this document;
• b) fully-threaded stud (FD), virtually fully-threaded stud (MD) and insulation pin/nail (ND) have been introduced;
• c) threaded stud has been renamed to partially threaded stud (PD);
• d) abbreviation P for pitch has been introduced;
• e) that a stud may consist of two different materials combined by friction welding has been introduced in 5.3.3.1;
• f) value for CEV (CEV ≤ 0,38) in Table 2 has been changed;
• g) SD3 materials according ISO 15510 have been introduced in Table 2;
• h) PT, UT and IT materials according ISO/TR 15608 have been introduced in Table 2;
• i) where applicable, the dimensions d₃ and h₄ are now for guidance only.
• j) “y_min” has been changed to “y + 2P” in Table 5, column l₂;
• k) “y_min + 1” has been changed to “y + 2P in Table 6, column d₁”;
• l) “α ± 2,5°” has been changed to “α ± 7°” in Table 6,column d₁;
• m) “α ± 2,5°” has been changed to “α ± 7°” in Table 9, column D₆;
• n) “b” has been changed to “b + 2P” and values for M 5 and M 8 have been changed to 7,5 mm and 12 mm in Table 9, column D₆;
• o) the column header “d₁ − 0,4” has been changed to “d₁ ± 0,4” in Table 10;
• p) “α ± 2,5”has been changed to “α ± 7” in Table 10;
• q) the column header “b_min” has been changed to “b_min + 2P” in Table 13;
• r) the column header “b” has been changed to “b_min + 2P” in Table 16;
• s) a nominal diameter (d₁ ± 0,1) of 8 mm has been introduced with an internal thread diameter (D₆) of M5 and M6 in Table 16;
• t) in all tables for the dimensions of ceramic ferrules, the values for the nominal diameter (D₇), the grip diameter (d₈), the base diameter (d₉) and the height (h₂) have been deleted;
• u) Table 17 has been introduced;
• v) a note that stud and ceramic ferrule are generally a coordinated system from the same manufacturer has been introduced in Clause 7;
• w) 10.1 has been introduced;
• x) Annex A has been deleted;
• y) figures, normative references and layout have been editorially revised.

Requests for official interpretations of any aspect of this document should be directed to the Secretariat of ISO/TC 44 via your national standards body. A complete listing of these bodies can be found at www.iso.org .

This corrected version of ISO 13918:2017 incorporates the following correction:

— footnote ^b in Table 11 has been modified.

Introduction

The range of types of studs specified in this document represents customary applications.

This document can be used in all fields of the metal-working industry.

1 Scope

This document specifies the following:

• requirements for studs and ceramic ferrules for arc stud welding;
• dimensions, materials and mechanical properties.

Table 1 shows types of studs and the symbols for studs and ceramic ferrules that are covered by this document.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. 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

No terms and definitions are listed in this document.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

Bibliography