EN 1669:1996
(Main)Aluminium and aluminium alloys - Test methods - Earing test for sheet and strip
Aluminium and aluminium alloys - Test methods - Earing test for sheet and strip
This standard specifies the method for determining the ear height of sheet and strip of nominal thicknesses from 0,08 mm to 6 mm after deep drawing.
Aluminium und Aluminiumlegierungen - Prüfverfahren - Zipfelprüfung an Blechen und Bändern
Diese Norm legt ein Verfahren zur Bestimmung der Zipfelausbildung nach dem Näpfchenziehversuch fest. Sie gilt für Bleche und Bänder mit einer Nenndicke von 0,08 mm bis 6 mm.
Aluminium et alliages d'aluminium - Méthodes d'essai - Mesure de l'indice de cornes à l'emboutissage pour les tôles et les bandes
La présente norme spécifie la méthode qui permet de déterminer la hauteur des cornes après emboutissage profond, sur une tôle ou une bande dont l'épaisseur nominale est comprise entre 0,08 mm et 6 mm.
Aluminij in aluminijeve zlitine - Metode preskušanja - Preskus ušesenja pločevine in trakov
General Information
- Status
- Published
- Publication Date
- 17-Sep-1996
- Withdrawal Date
- 30-Mar-1997
- Technical Committee
- CEN/TC 132 - Aluminium and aluminium alloys
- Drafting Committee
- WG 36 - Rolled products
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 19-Jun-2024
- Completion Date
- 23-Sep-2025
Overview
EN 1669:1996 - published by CEN - is a European test-method standard titled "Aluminium and aluminium alloys - Test methods - Earing test for sheet and strip." It specifies the standardized method for determining the ear height (earing) of aluminium sheet and strip after a deep-drawing operation for nominal thicknesses from 0.08 mm to 6 mm. The standard helps ensure consistent measurement and reporting of earing, a key indicator of anisotropy and material behavior in forming.
Key topics
The standard addresses the essential elements required to perform and report an earing test. While the full text gives the exact procedural details, EN 1669:1996 typically covers:
- Scope and applicability - sheet and strip of aluminium and aluminium alloys in the stated thickness range.
- Test principle - measurement of ear height formed after a deep-drawing operation to assess directional variation in material properties.
- Specimen preparation - guidance on sample selection and conditioning prior to testing.
- Test equipment and tooling - requirements for tooling geometry and press conditions appropriate to deep drawing.
- Measurement and evaluation - how ear heights are measured and how results are calculated and presented.
- Reporting - the essential information to include in a test report (material identification, dimensions, test conditions, measured ear heights, and any deviations).
(ICS code referenced: 77.150.10 - Aluminium products.)
Applications
EN 1669:1996 is a practical tool for quality control, material characterization, and process development where deep drawing of aluminium is involved. Typical uses include:
- Quality assurance by aluminium producers and processors to verify forming performance.
- Automotive and appliance industries where deep-drawn aluminium components require predictable earing behavior.
- Sheet metal fabricators and toolmakers to evaluate forming tools and process settings.
- Materials R&D and labs for comparing alloys, tempers, and rolling directions.
- Specification writers and purchasers who need a standard test reference in procurement and conformity documents.
Who should use it
- Metallurgical and quality-control laboratories
- Aluminium sheet and strip manufacturers
- Automotive and consumer-goods engineers involved in stamping/deep drawing
- Standards committees and conformity assessors
Related standards
EN 1669 is part of the family of CEN standards on aluminium test methods and forming performance. Users often consult other CEN/ISO standards on tensile testing, anisotropy, and sheet metal forming to get a complete assessment of material behavior.
Keywords: EN 1669:1996, earing test, ear height, aluminium sheet, aluminium alloys, deep drawing, test methods, sheet and strip, metal forming quality.
Frequently Asked Questions
EN 1669:1996 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aluminium and aluminium alloys - Test methods - Earing test for sheet and strip". This standard covers: This standard specifies the method for determining the ear height of sheet and strip of nominal thicknesses from 0,08 mm to 6 mm after deep drawing.
This standard specifies the method for determining the ear height of sheet and strip of nominal thicknesses from 0,08 mm to 6 mm after deep drawing.
EN 1669:1996 is classified under the following ICS (International Classification for Standards) categories: 77.120.10 - Aluminium and aluminium alloys; 77.150.10 - Aluminium products. The ICS classification helps identify the subject area and facilitates finding related standards.
You can purchase EN 1669:1996 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aluminium und Aluminiumlegierungen - Prüfverfahren - Zipfelprüfung an Blechen und BändernAluminium et alliages d'aluminium - Méthodes d'essai - Mesure de l'indice de cornes a l'emboutissage pour les tôles et les bandesAluminium and aluminium alloys - Test methods - Earing test for sheet and strip77.150.10Aluminijski izdelk
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...