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Standard Digital Reference Images for Titanium Castings (Includes all amendments And changes 1/4/2023).
Name übersetzen
NORM herausgegeben am 1.6.2016
Bezeichnung normen: ASTM E2669-16e1
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.6.2016
SKU: NS-666152
Zahl der Seiten: 6
Gewicht ca.: 18 g (0.04 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
aerospace, digital reference image, discontinuities, investment castings, titanium, X-ray,, ICS Number Code 35.140 (Computer graphics),49.035 (Components for aerospace construction)
Significance and Use | ||||||||
4.1 These digital reference images are intended for reference only, but are designed such that acceptance standards, which may be developed for particular requirements, can be specified in terms of these digital reference images. The illustrations are digital images of castings that were produced under conditions designed to develop the discontinuities. 4.1.1 Applicability of Thickness Designations: 4.1.1.1 The discontinuity types, illustrated thickness and applicable thickness range are summarized in Table 1 for the Volume I images and in Table 2 for the Volume II images. 4.2 Image Deterioration—Many conditions can affect the appearance and functionality of digital reference images. For example, electrical interference, hardware incompatibilities, and corrupted files and drivers may affect their appearance. The Practice E2002 line pair gauges located in each digital reference image can be used as an aid to detect image deterioration by comparing the measured resolution using the gauges to the resolution stated on the digital reference image. Do not use the digital reference images if their appearance has been adversely affected such that the interpretation and use of the images could be influenced. 4.3 Agreement should be reached between cognizant engineering organization and the supplier that the system used by the supplier is capable of detecting and classifying the required discontinuities. |
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1. Scope | ||||||||
1.1 The digital reference images provided in the adjuncts to this standard illustrate various types and degrees of discontinuities occurring in titanium castings.1.1.1 A guide enabling recognition of titanium casting discontinuities and their differentiation both as to type and degree through digital radiographic examination. 1.1.2 Example digital radiographic illustrations of discontinuities and a nomenclature for reference in acceptance standards, specifications and drawings. 1.2 The digital reference images consist of twenty-five digital files each illustrating eight grades of increasing severity. The Volume I files illustrate seven common discontinuity types representing casting sections up to 1 in. (25.4 mm). The Volume II files illustrate five discontinuity types representing casting sections over 1 in. (25.4 mm) to 2 in. (50.8 mm) in thickness. 1.3 All areas of this standard may be open to agreement between the cognizant engineering organization and the supplier, or specific direction from the cognizant engineering organization. These items should be addressed in the purchase order or the contract. Note 1: The digital reference images are available from ASTM
International Headquarters. Order number RRE266901 and RRE266902.
Each of the digital reference images contain an image of a step
density scale and two duplex-wire gauges. Refer to Practice
E2002 for wire pair details.
Originally, only Volume I images were available and some sets may
identify these only as RRE2669 without a volume designation. They
remain valid for use as Volume I images (RRE266901)
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.5 These digital reference images are not intended to illustrate the types or degrees of discontinuities when performing film radiography. If performing film radiography of titanium castings, refer to Reference Radiographs E1320. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1.7 Only licensed copies of the software and images shall be utilized for production inspection. A copy of the ASTM/User license agreement shall be kept on file for audit purposes. |
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2. Referenced Documents | ||||||||
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