NF EN ISO 14270

NF EN ISO 14270

May 2016
Standard Current

Resistance welding - Destructive testing of welds - Specimen dimensions and procedure for mechanized peel testing resistance spot, seam and embossed projection welds

ISO 14270:2016 specifies specimen dimensions and a testing procedure for mechanized peel testing of single spot, seam and embossed projection welds, in overlapping sheets, in any metallic material of thickness 0,5 mm to 3 mm, where the welds have a maximum diameter of 7√t (where t is the sheet thickness in mm).For welds of diameter between 5√t and 7√t, the peel strength values obtained may be lower than expected when using the recommended test specimen dimensions because the test specimen width is designed for welds of diameter of 5√t or less.The object of mechanized peel testing is to determine the peel strength that the test specimen can sustain.

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Main informations

Collections

National standards and national normative documents

Publication date

May 2016

Number of pages

27 p.

Reference

NF EN ISO 14270

ICS Codes

25.160.40   Welded joints and welds

Classification index

A89-567

Print number

1

International kinship

ISO 14270:2016

European kinship

EN ISO 14270:2016
Sumary
Resistance welding - Destructive testing of welds - Specimen dimensions and procedure for mechanized peel testing resistance spot, seam and embossed projection welds

ISO 14270:2016 specifies specimen dimensions and a testing procedure for mechanized peel testing of single spot, seam and embossed projection welds, in overlapping sheets, in any metallic material of thickness 0,5 mm to 3 mm, where the welds have a maximum diameter of 7√t (where t is the sheet thickness in mm).

For welds of diameter between 5√t and 7√t, the peel strength values obtained may be lower than expected when using the recommended test specimen dimensions because the test specimen width is designed for welds of diameter of 5√t or less.

The object of mechanized peel testing is to determine the peel strength that the test specimen can sustain.

Replaced standards (1)
NF EN ISO 14270
December 2001
Standard Cancelled
Specimen dimensions and procedure for mechanized peel testing resistance spot, seam and embossed projection welds

Le présent document spécifie les dimensions des éprouvettes, et décrit un mode opératoire s'appliquant aux essais par déboutonnage mécanisé des soudures à un point de soudage isolé, à la molette et par bossages, réalisées sur des tôles soudées par recouvrement.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Pièces d'essai et éprouvettes
  • 5 Préparation des éprouvettes pour l'essai de pelage mécanisé
  • 6 Mode opératoire pour l'essai de pelage et équipement d'essai
  • 7 Nouveaux essais
  • 8 Rapport d'essai
  • Annexe A Mesurage de la taille des soudures par bossages
  • Annexe B Influence de la position de soudage sur les résultats d'essai
  • Annexe C Exemple d'outils de pliage
  • Annexe D Détermination de la position du centre de pliage avec une presse plieuse
  • Bibliographie
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