Conference proceeding
A New Standard for Radiographic Acceptance Criteria for Steel Castings
TRANSACTIONS OF THE AMERICAN FOUNDRY SOCIETY, VOL 117, Vol.117, p.765
2009
Abstract
A new standard for the evaluation of steel casting radiographs is proposed to address the shortcomings of current standards such as ASTM E1316-05. Current standards are workmanship standards and are subjective. They also suffer from poor reproducibility. The draft standard presented here uses an acceptance criteria determined from the fractional total length of radiographic indications along a line oriented in a specified direction of interest. This evaluation method and the proposed acceptance criteria can be related to part performance, since the fractional length is referenced to a prescribed feature length. Designers can select this feature length to ensure that castings meeting the acceptance criteria will also meet their designed performance requirement. Example evaluations of radiographs are presented, and methods are demonstrated to relate these evaluations to part performance. These examples show that the relationship between the radiographic evaluation and part performance can be conservative or non-conservative according to the designer's prescription. The proposed standard is applied to the ASTM E 186 standard radiographs and the results demonstrate the subjectivity of this current standard.
Details
- Title: Subtitle
- A New Standard for Radiographic Acceptance Criteria for Steel Castings
- Creators
- M BlairR MonroeR HardinC Beckermann
- Resource Type
- Conference proceeding
- Publication Details
- TRANSACTIONS OF THE AMERICAN FOUNDRY SOCIETY, VOL 117, Vol.117, p.765
- Language
- English
- Date published
- 2009
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984231826802771
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