X-ray-computed Tomography for Inspecting Industrial Parts PDF Download

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 6

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Book Description
We are building a tomographic x-ray scanner to inspect cast explosives and industrial parts and to study new materials. We will use the scanner to examine parts up to 38 cm, in height, 25 cm in diameter, and 25 kg in weight. We tested our reconstruction program by comparing the results of a computer experiment with the input data. The program can complete a 128-by-128 pixel reconstruction in about 10 minutes. The tomographic x-ray scanner rotates and translates the sample through a second-generation scan. We use a 32 -detector array with a 16-bit analog-to-digital converter purchased from Bio-Imaging Research. The detector and source are mounted on optical tables; one is a base for the entire assembly, and the other supports the detector array. We use an x-ray source from IRT Corporation with an output of 2 mA at 320 kV. The source spot size is 0.8 mm and the output is stable to {plus minus}1% over 5 hours. 6 figs.

Author: Simone Carmignato
Publisher: Springer
ISBN: 3319595733
Category : Technology & Engineering
Languages : en
Pages : 372

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Book Description
X-ray computed tomography has been used for several decades as a tool for measuring the three-dimensional geometry of the internal organs in medicine. However, in recent years, we have seen a move in manufacturing industries for the use of X-ray computed tomography; first to give qualitative information about the internal geometry and defects in a component, and more recently, as a fully-quantitative technique for dimensional and materials analysis. This trend is primarily due to the ability of X-ray computed tomography to give a high-density and multi-scale representation of both the external and internal geometry of a component, in a non-destructive, non-contact and relatively fast way. But, due to the complexity of X-ray computed tomography, there are remaining metrological issues to solve and the specification standards are still under development. This book will act as a one-stop-shop resource for students and users of X-ray computed tomography in both academia and industry. It presents the fundamental principles of the technique, detailed descriptions of the various components (hardware and software), current developments in calibration and performance verification and a wealth of example applications. The book will also highlight where there is still work to do, in the perspective that X-ray computed tomography will be an essential part of Industry 4.0.

Author: Anton du Plessis
Publisher:
ISBN:
Category : Tomography
Languages : en
Pages : 18

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Book Description
This work highlights the capabilities for high-resolution X-ray computed tomography (CT) inspection of witness specimens, built alongside a complex part, in metal additive manufacturing. Such witness specimens, which can be standardized in their dimensions (fixed diameter of 15mm, with cylindrical shape built in a vertical orientation), allow X-ray CT inspections with fixed and reproducible workflows. The detection of improper process parameters of the additive manufacturing system is possible, as is demonstrated in this paper. It is also demonstrated how the presence of inclusions/contamination in the powder feedstock can be detected in the witness specimen. A series of Ti6Al4V witness specimens with varying porosity distributions are presented, which were part of a previous study of builds of the same set of parts on different laser powder bed fusion systems. This demonstrates how various process parameter errors are highlighted and proven to be detectable in witness specimens using standardized CT procedures. More importantly, it also allows the potential to detect layered flaws, which can occur horizontally in the build plane. Such layered flaws may originate from reduced laser power, improper powder spreading, or due to complete shutdown and restart of a build. A complex bracket and witness specimen cylinder was built and a layered flaw was artificially induced by shutting down the system and restarting it. The positive detection of the flaw by CT in the witness rod is demonstrated. This witness rod was recently part of a round-robin test, and the layered flaw was successfully identified by all ten participants in the round-robin test. The witness rod and complex part were subsequently sectioned and optical microscopy reported here. This approach is especially useful for inspection of larger parts, which cannot be inspected using X-ray CT at the highest possible resolution due to part size and associated CT scanning time limits.

Author: Fouad Sabry
Publisher: One Billion Knowledgeable
ISBN:
Category : Computers
Languages : en
Pages : 80

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Book Description
What is Automated X-Ray Inspection Robot Automated X-ray inspection (AXI) is a technology based on the same principles as automated optical inspection (AOI). It uses X-rays as its source, instead of visible light, to automatically inspect features, which are typically hidden from view. How you will benefit (I) Insights, and validations about the following topics: Chapter 1: Automated X-ray inspection Chapter 2: Automated optical inspection Chapter 3: CT scan Chapter 4: Industrial computed tomography Chapter 5: X-ray microtomography Chapter 6: Computed tomography laser mammography Chapter 7: Tomosynthesis Chapter 8: Computed tomography imaging spectrometer Chapter 9: Tomography Chapter 10: History of computed tomography (II) Answering the public top questions about automated x-ray inspection robot. (III) Real world examples for the usage of automated x-ray inspection robot in many fields. Who this book is for Professionals, undergraduate and graduate students, enthusiasts, hobbyists, and those who want to go beyond basic knowledge or information for any kind of Automated X-Ray Inspection Robot.

Author: Harry E. Martz
Publisher: CRC Press
ISBN: 1420009761
Category : Technology & Engineering
Languages : en
Pages : 590

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Book Description
While books on the medical applications of x-ray imaging exist, there is not one currently available that focuses on industrial applications. Full of color images that show clear spectrometry and rich with applications, X-Ray Imaging fills the need for a comprehensive work on modern industrial x-ray imaging. It reviews the fundamental science of x-ray imaging and addresses equipment and system configuration. Useful to a broad range of radiation imaging practitioners, the book looks at the rapid development and deployment of digital x-ray imaging system.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 116

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Book Description

Author: Hiroyuki Toda
Publisher: Springer Nature
ISBN: 9811605904
Category : Technology & Engineering
Languages : en
Pages : 549

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Book Description
This book provides easy-to-understand explanations to systematically and comprehensively describe the X-ray CT technologies, techniques, and skills used for industrial and scientific purposes. Included are many references along with photographs, figures, and equations prepared by the author. These features all facilitate the reader's gaining a deeper understanding of the topics being discussed. The book presents expertise not only on fundamentals but also about hardware, software, and analytical methods for the benefit of technical users. The book targets engineers, researchers, and students who are involved in research, development, design, and quality assurance in industry and academia.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 57

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Book Description
This project was designed to study the effectiveness of industrial computed tomography (CT) and digital radiography (DR) as inspection techniques for the evaluation of materials and structural components manufactured on-line. The results indicate that computed tomography is an appropriate technique if speed and cost are not critical considerations. Digital radiography is the faster technique, but provides less information about the material. Limited view tomography (LVT), which is a simplified form of computed tomography, was compared and found to provide a good compromise between computed tomography and digital radiography when a priori knowledge of material structure is available. For some material configurations, it provides virtually complete computed tomography data in a fraction of the time required for full view computed tomography data collection and reconstruction. It offers the greatest potential for the productive cross-sectional characterization of composite materials. (jg).

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
The advantages of computed tomography using x-ray or gamma sources for the nondestructive testing of industrial materials, welded joints and equipment such as reactor components are discussed, and the successful use of the Los Alamos tomographic scanner is described. (LCL).

Author: E.M. Hussein
Publisher: Springer Science & Business Media
ISBN: 030648403X
Category : Technology & Engineering
Languages : en
Pages : 515

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Book Description
The need for this book arose from my teaching, engineering, and - search experience in the non-power aspects of nuclear technology. The lack of a comprehensive textbook in industrial applications of radiation frustrated my students, who had to resort to a multitude of textbooks and research publications to familiarize themselves with the fundam- tal and practical aspects of radiation technology. As an engineer, I had to acquire the design aspects of radiation devices by trial-and-error, and often by accidental reading of a precious publication. As a researcher and a supervisor of graduate students, I found that the needed literature was either hard to find, or too scattered and diverse. More than once, I discovered that what appeared to be an exciting new idea was an old concept that was tried a few decades earlier during the golden era of “Atom for Peace”. I am hoping, therefore, that this book will serve as a single comprehensive reference source in a growing field that I expect will continue to expand. This book is directed to both neophytes and experts, and is written to combine the old and the new, the basic and the advanced, the simple and the complex. It is anticipated that this book will be of help in - viving older concepts, improving and expanding existing techniques and promoting the development of new ones.