Aerospace series - Test method for metallic materials - Ultrasonic inspection of bars, plates, forging stock and forgings - Part 2: Performance of test

This European Standard specifies the method of performing ultrasonic testing. The general requirements are given in EN 4050 1.

Luft- und Raumfahrt - Prüfverfahren für metallische Werkstoffe - Ultraschallprüfung von Stangen, Platten, Schmiedevormaterial und Schmiedestücken - Teil 2: Durchführung der Prüfung

Diese Norm legt das Verfahren für die Ultraschallprüfungen fest. Die allgemeinen Anforderungen sind in EN 4050-1 angegeben.

Série aérospatiale - Méthode d'essai applicable aux matériaux métalliques - Contrôle par ultrasons de barres, plaques, demi-produit pour forgeage et pièces forgées - Partie 2: Réalisation de l'essai

Aeronavtika - Metode za preskušanje kovinskih materialov - Ultrazvočno preskušanje palic, plošč, kovnih materialov in izkovkov - 2. del: Izvajanje preskušanja

General Information

Status
Published
Publication Date
25-Sep-2012
Technical Committee
Drafting Committee
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
26-Sep-2012
Completion Date
26-Sep-2012

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.YRþQRSUHVNXãDQMDLuft- und Raumfahrt - Prüfverfahren für metallische Werkstoffe - Ultraschallprüfung von Stangen, Platten, Schmiedevormaterial und Schmiedestücken - Teil 2: Durchführung der PrüfungSérie aérospatiale - Méthode d'essai applicable aux matériaux métalliques - Contrôle par ultrasons de barres, plaques, demi-produit pour forgeage et pièces forgées - Partie 2: Réalisation de l'essaiAerospace series - Test method for metallic materials - Ultrasonic inspection of bars, plates, forging stock and forgings - Part 2: Performance of test49.035Sestavni deli za letalsko in vesoljsko gradnjoComponents for aerospace construction49.025.01Materiali za letalsko in vesoljsko gradnjo na splošnoMaterials for aerospace construction in generalICS:Ta slovenski standard je istoveten z:EN 4050-2:2012SIST EN 4050-2:2014en,fr,de01-marec-2014SIST EN 4050-2:2014SLOVENSKI

STANDARD
SIST EN 4050-2:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4050-2
September 2012 ICS 49.025.05; 49.025.15 English Version

Aerospace series - Test method for metallic materials - Ultrasonic inspection of bars, plates, forging stock and forgings -Part 2: Performance of test

Série aérospatiale - Méthode d'essai applicable aux matériaux métalliques - L'inspection par ultrasons des barres, des assiettes, des stocks de forgeage et de pièces forgées - Partie 2: Réalisation de l'essai

Luft- und Raumfahrt - Prüfverfahren für metallische Werkstoffe - Ultraschallprüfung von Stangen, Platten, Schmiedevormaterial und Schmiedestücken - Teil 2: Durchführung der Prüfung This European Standard was approved by CEN on 15 July 2011.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,

B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4050-2:2012: ESIST EN 4050-2:2014

EN 4050-2:2012 (E) 2 Contents Page Foreword ..............................................................................................................................................................31Scope ......................................................................................................................................................42Normative references ............................................................................................................................43General ....................................................................................................................................................43.1Implementation ......................................................................................................................................43.2Test procedures .....................................................................................................................................43.3Calibration of the flaw detector time base ..........................................................................................43.4Scanning speed and pitch ....................................................................................................................43.5Scanning index ......................................................................................................................................43.6Wave modes ...........................................................................................................................................43.7Sensitivity corrections ..........................................................................................................................53.8Flaw size and position recording .........................................................................................................54Performance characteristics of the inspection system .....................................................................54.1Requirements .........................................................................................................................................54.2Ultrasonic test set ..................................................................................................................................55Measurement of material characteristics ............................................................................................65.1Attenuation .............................................................................................................................................65.2Structure noise (grass) .........................................................................................................................66Flaw recognition level ...........................................................................................................................67Setting-up procedure ............................................................................................................................67.1Choice of probe ......................................................................................................................................67.2Choice of inspection frequency ...........................................................................................................67.3Choice of water gap (immersion technique) .......................................................................................77.4Type of coupling (contact technique) ..................................................................................................77.5Basic reference sensitivity ...................................................................................................................78Monitored systems ................................................................................................................................98.1General ....................................................................................................................................................98.2Description .............................................................................................................................................98.3Monitored area and threshold level .....................................................................................................98.4Dynamic response .................................................................................................................................99Equipment requirements ......................................................................................................................99.1Immersion technique facilities .............................................................................................................99.2Contact technique facilities ..................................................................................................................99.3Probe/flaw detector combination ...................................................................................................... 1010Periodic control checks ..................................................................................................................... 10 SIST EN 4050-2:2014

EN 4050-2:2012 (E) 3 Foreword This document (EN 4050-2:2012) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2012, and conflicting national standards shall be withdrawn at the latest by March 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 4050-2:2014

EN 4050-2:2012 (E) 4 1 Scope This European Standard specifies the method of performing ultrasonic testing. The general requirements are given in EN 4050-1. 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. EN 4050-1, Aerospace series — Test method for metallic materials — Ultrasonic inspection of bars, plates, forging stock and forgings — Part 1: General requirements EN 4050-4, Aerospace series — Test method for metallic materials — Ultrasonic inspection of bars, plates, forging stock and forgings — Part 4: Acceptance criteria 3 General 3.1 Implementation Implementation shall be as required by the relevant technique, inspection schedule or order. 3.2 Test procedures The equipment to be used, its performance, the scanning plan and the acceptance standard shall be as defined in the relevant test procedure, inspection schedule or order for each item. 3.3 Calibration of the flaw detector time base The time base shall be calibrated and care shall be taken to ensure that interface and target echoes can be readily identified. 3.4 Scanning speed and pitch To ensure efficient inspection of the entire volume of the material, the scanning speed and pitch shall be established taking into account the test beam diameter, the acceptance standard and the pulse repetition frequency. Account shall also be taken of whether a manual or automatic system of flaw detection is used. 3.5 Scanning index The scanning index shall be such that the reference reflector always produces at least two indications on two successive pulses. The two signals shall not be more than 6 dB lower than the maximum indication of the reference reflector measured in the static conditions. 3.6 Wave modes There are different ultrasonic wave modes, namely:  longitudinal;  shear; SIST EN 4050-2:2014

EN 4050-2:2012 (E) 5  surface;  lamb waves. The wave mode shall be as specified in the relevant technique or inspection schedule. 3.7 Sensitivity corrections Corrections for distance/amplitude effects, attenuation, shape effects and specified acceptance standard shall be made to attain the desired level of sensitivity in the part being examined. 3.8 Flaw size and position recording The inspection system shall generate and contain sufficient information to enable flaw size and position to be derived with respect to the scanning sequence and reference data from the equipment. 4 Performance characteristics of the inspection system 4.1 Requirements In order to meet the specific requirements for each test item of the procedural document for each part number and for optimum and reproducible inspection, it is essential that the characteristics and performance data of all the equipment are measured and recorded. This is defined in the three following sections:  the probe and flaw detector that are used in establishing the working sensitivity and for evaluating flaws;  periodic control checks carried out on the facility;  specific operating and control instr

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