NF EN ISO 12004-2

NF EN ISO 12004-2

March 2021
Standard Current

Metallic materials - Determination of forming-limit curves for sheet and strip - Part 2 : determination of forming-limit curves in the laboratory

This document specifies testing conditions for use when constructing a forming-limit curve (FLC) at ambient temperature and using linear strain paths. The material considered is flat, metallic and of thickness between 0,3 mm and 4 mm. NOTE The limitation in thickness of up to 4 mm is proposed, giving a maximum allowable thickness to the punch diameter ratio.

See more
View the extract
Main informations

Collections

National standards and national normative documents

Publication date

March 2021

Number of pages

36 p.

Reference

NF EN ISO 12004-2

ICS Codes

77.040.10   Mechanical testing of metals

Classification index

A03-670-2

Print number

1

International kinship

ISO 12004-2:2021

European kinship

EN ISO 12004-2:2021
Sumary
Metallic materials - Determination of forming-limit curves for sheet and strip - Part 2 : determination of forming-limit curves in the laboratory

This document specifies testing conditions for use when constructing a forming-limit curve (FLC) at ambient temperature and using linear strain paths. The material considered is flat, metallic and of thickness between 0,3 mm and 4 mm.

NOTE The limitation in thickness of up to 4 mm is proposed, giving a maximum allowable thickness to the punch diameter ratio.

Replaced standards (1)
NF EN ISO 12004-2
December 2008
Standard Cancelled
Metallic materials - Sheet and strip - Determination of forming-limit curves - Part 2 : determination of forming-limit curves in laboratory

Le présent document spécifie les conditions d'essai à utiliser pour la construction d'une courbe limite de formage (CLF) à la température ambiante et au moyen de chemins linéaires de déformation, pour les tôles et bandes métalliques d'épaisseur comprise entre 0,3 mm et 4 mm.

Table of contents
View the extract
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Symboles
  • 5 Principe
  • 6 Éprouvettes et équipement
  • 7 Analyse du profil de déformation et détermination des paires e 1 - e
    2
  • 8 Documentation
  • 9 Rapport d'essai
  • Annexe A Dérivée seconde et dérivée seconde "filtrée"
  • Annexe B Calcul de la largeur de la fenêtre de fit
  • Annexe C Évaluation de la parabole inverse de meilleur fit sur la "courbe en cloche"
  • Annexe D Application/Mesure de la grille - Évaluation à la loupe ou au microscope
  • Annexe E Tableaux de données expérimentales pour la validation du programme de calcul
  • Annexe F Représentation et description mathématique de la CLF
  • Annexe G Exemples de données relatives à des sections critiques
  • Annexe H Logigramme relatif au passage de la distribution des déformations mesurées aux valeurs de la CLF
  • Bibliographie
ZOOM ON ... the Requirements department
To comply with a standard, you need to quickly understand its issues in order to determine its impact on your activity.

The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.

The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.

With Requirements, quickly access the main part of the normative text!

With Requirements, quickly access the main part of the normative text!
Need to identify, monitor and decipher standards?

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.

Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!

Request your free, no-obligation live demo

I discover COBAZ