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Ultrasonic Inspection Of Aircraft Forgings
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Book Synopsis Ultrasonic Inspection of Aircraft Forgings by : Alex Barath
Download or read book Ultrasonic Inspection of Aircraft Forgings written by Alex Barath and published by . This book was released on 1957 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonic inspection, one of the newest methods of nondestructive testing, has grown in a relatively short time from a laboratory phenomenon to one of our most valuable means of detecting subsurface discontinuities. Ultrasonic flaw detection, basically speaking, employs a high-frequency sound wave which, when transmitted into a piece of material, follows a linear path and is reflected back when it reaches the end face of the material or an internal discontinuity. In plate, bar, and extrusion, the subsurface defects lie parallel to the surface, almost without exception, and these materials readily adapt themselves to high-speed scanning and the use of automation and automatic scanning equipment.
Book Synopsis Computer-automated Ultrasonic Inspection System for Aircraft Forgings by : B. G. W. Yee
Download or read book Computer-automated Ultrasonic Inspection System for Aircraft Forgings written by B. G. W. Yee and published by . This book was released on 1973 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work includes the preliminary design of the overall system operation shown by block diagrams of the subsystem functions and operations and timing diagrams for the three modes of ultrasonic inspection: reflection, transmission, and Delta-Scan. Progress to date includes the completion of the design of the X-Y scanner, the purchase of a 4 x 6 x 3-ft tank, and the purchase of the mechanical components, electromechanical controls, and displays necessary for the fabrication of an X-Y scanner capable of operating in the manual or computer controlled mode. The design for the gimbal control is essentially complete with some of the components already in fabrication. A Convair-owned Automation Model UM 771 reflectoscope has been modified to accept programmable gain control from the computer. The electronic circuitries for the gating and computer interfacing have been designed and several have been fabricated. (Modified author abstract)
Book Synopsis Computer-Automated Ultrasonic Inspection System for Aircraft Forging by : B. G. W. Yee
Download or read book Computer-Automated Ultrasonic Inspection System for Aircraft Forging written by B. G. W. Yee and published by . This book was released on 1975 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the work conducted on a program to design, fabricate and evaluate a prototype Computer Automated Ultrasonic Inspection System for inspecting complex aircraft forgings. This report documents the modification required to off-the-shelf ultrasonic equipment to provide all the ultrasonic flaw data for the computer and provide computer control of receiver gain and flaw-gate width. Also the design and fabrication of a multiple flaw gate system is described and evaluated.
Book Synopsis Aerospace Series. Test Method for Metallic Materials. Ultrasonic Inspection of Bars, Plates, Forging Stock and Forgings. Reference Blocks by : British Standards Institute Staff
Download or read book Aerospace Series. Test Method for Metallic Materials. Ultrasonic Inspection of Bars, Plates, Forging Stock and Forgings. Reference Blocks written by British Standards Institute Staff and published by . This book was released on 1912-10-31 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Air transport engineering, Aircraft components, Metals, Wires, Fasteners, Mechanical testing, Bars (materials), Forging stock
Book Synopsis Aerospace Series. Test Method for Metallic Materials. Ultrasonic Inspection of Bars, Plates, Forging Stock and Forgings. Performance of Test by : British Standards Institute Staff
Download or read book Aerospace Series. Test Method for Metallic Materials. Ultrasonic Inspection of Bars, Plates, Forging Stock and Forgings. Performance of Test written by British Standards Institute Staff and published by . This book was released on 1912-10-31 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Air transport engineering, Aircraft components, Metals, Wires, Fasteners, Mechanical testing, Bars (materials), Forging stock
Book Synopsis Method for Ultrasonic Testing of Special Forgings by an Immersion Technique Using Flat-Bottomed Holes As a Reference Standard by : British Standards Institute Staff
Download or read book Method for Ultrasonic Testing of Special Forgings by an Immersion Technique Using Flat-Bottomed Holes As a Reference Standard written by British Standards Institute Staff and published by . This book was released on 1970-09-14 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonic testing, Non-destructive testing, Sonic testing, Forgings, Aircraft components, Flaw detection, Turbine components, Rotating parts, Surface defects, Aircraft engines, Defects, Reports, Diagrams, Test specimens, Dimensions, Control samples, Colour codes, Ultrasonics, Air transport engineering
Book Synopsis Aerospace Series. Test Method for Metallic Materials. Ultrasonic Inspection of Bars, Plates, Forging Stock and Forgings. General Requirements by : British Standards Institute Staff
Download or read book Aerospace Series. Test Method for Metallic Materials. Ultrasonic Inspection of Bars, Plates, Forging Stock and Forgings. General Requirements written by British Standards Institute Staff and published by . This book was released on 1912-10-31 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Air transport engineering, Aircraft components, Space technology, Space technology components, Qualification approval, Capability approval, Acceptance (approval), Quality assurance systems, Quality assurance, Standardization, Approved organizations, Enterprises
Book Synopsis Ultrasonic Nondestructive Testing for Aircraft by : United States. Flight Standards Service
Download or read book Ultrasonic Nondestructive Testing for Aircraft written by United States. Flight Standards Service and published by . This book was released on 1975 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Improved Ultrasonic Inspection of Titanium Alloy Forging Billets by : I. M. Matay
Download or read book Improved Ultrasonic Inspection of Titanium Alloy Forging Billets written by I. M. Matay and published by . This book was released on 1977 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Titanium is an important raw material in both aircraft engines and structures. It is also being used in a larger-and-larger size forged billet form. The billets' increasing size, in addition to their coarser-grained structures, drastically limit the detection capabilities and reliability of finding small defects when using established ultrasonic techniques along with manually operated commercial instruments. Providing an improved billet inspection to insure greater reliability in the finished part at an improved overall process economy is desirable. Available commercial instruments were evaluated and proven incapable of meeting the critical inspection requirements. An original design for the ultrasonic circuitry, interfaced with a minicomputer, and a data display system which shows the billet in multiple cross-section slices was fabricated. All the detectable defects and/or only those which meet or exceed a selected quality control reject criteria, can be displayed. An Ultrasonic Diagnostic Inspection System, UDIS, capable of increased inspection sensitivity, resolution and speed with reduced equipment and operator variability was built and evaluated in this program. The performance characteristics of the system have been well defined by laboratory operations and the feasibility of its application to mill inspection of up to 16-inches diameter and 10-foot length billets has been demonstrated by limited in-plant field trials. In addition, a joint industry (billet maker/user) team evaluation of the UDIS has also been carried out for the establishment of an improved billet inspection specification. The report also covers recommendations for industry utilization of the UDIS.
Book Synopsis Aerospace Series. Test Method for Metallic Materials. Ultrasonic Inspection of Bars, Plates, Forging Stock and Forgings. Acceptance Criteria by : British Standards Institute Staff
Download or read book Aerospace Series. Test Method for Metallic Materials. Ultrasonic Inspection of Bars, Plates, Forging Stock and Forgings. Acceptance Criteria written by British Standards Institute Staff and published by . This book was released on 1912-10-31 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerospace transport, Defects, Metals, Pipes, Specification (approval), Ultrasonic testing, Flaw detection, Diameter, Acceptance inspection
Book Synopsis High-Sensitivity, Immersion, Ultrasonic Testing of Steel Forgings by : SM. Brueggemann
Download or read book High-Sensitivity, Immersion, Ultrasonic Testing of Steel Forgings written by SM. Brueggemann and published by . This book was released on 1986 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Present industry-wide standards covering ultrasonic inspections of forgings such as ASTM Recommended Practice for Ultrasonic Examination of Heavy Steel Forgings (A 388-80) specify the contact method of inspection. Sensitivity settings vary as to inspection technique--longitudinal or shear wave (straight or angle beam). Normally, the sensitivity is established using a back reflection or test sample technique in order to resolve equivalent flat-bottom hole (EFBH) sizes of 3.175 mm (0.125 in.) at the centerline or bore surface of the forging. The assumption is made that most indications will be oriented parallel to the direction of the longitudinal axis of cylindrical forgings and in a circumferential plane of ring forgings.
Book Synopsis Ultrasonic Testing of Bronze Forgings and Ingots by : A. Piltch
Download or read book Ultrasonic Testing of Bronze Forgings and Ingots written by A. Piltch and published by . This book was released on 1951 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: The experience of the Naval Gun Factory in ultrasonic testing has been limited to the use of the Sperry Reflectoscope. The applications and findings with this instrument have, on the whole, been quite similar to those of many other users. The greatest value from the equipment has been obtained in the testing of forgings, particularly non-ferrous forgings to which other methods of examination are not well suited. for example, considerable use is made of aluminum bronze forgings containing from 8 to 12 per cent aluminum, heat treated to tensile strengths as high as 100,000 psi. From time to time, serious runs of defective forgings have occurred, forgings split down a central plane with the splits sometimes, but not always, extending to an outside surface. Fluorescent penetrant methods are, of course, of limited value in detecting such defects, and radiography frequently inapplicable because of the thicknesses involved and the directions of the defects. Since many of the forgings are of relatively uniform sections, in the range of 4 to 10 in. in thickness, they present an almost ideal application for the "Reflectoscope", which has been used for checking them in this manner for over two years. Originally it was intended to use the instrument to determine the point in the manufacturing process at which major splits were formed, and with this in mind, the ingots were examined after casting and also the forgings made therefrom, both before and after heat treatment. Unfortunately, or perhaps fortunately, no major series of defects have occurred since the instrument was placed in use, possibly because the shops involved, knowing that this equipment was available and could point to specific operations, employed greater care in each step, such as watching melt composition, pouring temperature, forging temperature, etc., more closely. Out of the ingot examination has come one interesting application, that of determining the amount of cropping necessary to insure sound forging stock. Using a frequency of 1 mc., it is very simple to detect both the primary piping down the center of an ingot, which usually absorbs the signal completely, and secondary piping, which normally produces a reflection. The proper point for cropping can be located very accurately, permitting maximum utilization of material and eliminating exploratory cutting. At the same time, any other localized defective portions are also marked for removal from the ingot. Test forgings have been made from such localized defective portions, also proving defective in most cases, but not duplicating the serious splits we had encountered in the past. Although the cause of these defects has not yet been found, apparently a salutary effect has resulted.
Book Synopsis The Application of Ultrasonics to the Fabrication of Aluminum by : J. V. Carroll
Download or read book The Application of Ultrasonics to the Fabrication of Aluminum written by J. V. Carroll and published by . This book was released on 1951 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: The non-destructive ultrasonic test for the determination of the internal soundness of aluminum ingots, forging stock, forgings, and large rolled shapes has been found to be rapid, economical, accurate, and readily adaptable to production methods. In some finish rolled sections of critical size, notably aircraft wing spar sections where a high degree of perfection is required, a final ultrasonic inspection is made. Ultrasonic testing has been found useful in the development of new ingot casting methods and new alloys. Various rolling mill operating practices have been more intelligently evaluated through the prior knowledge of the internal quality of the ingot or bloom as afforded by an ultrasonic inspection. Like some of the other non-destructive test methods, ultrasonic testing may lead to improper conclusions concerning the quality of the product, unless the results of the test are properly interpreted. As more varied and extensive use is made of this method with aluminum products, common nomenclature can be developed and agreement on the interpretation of the results should become possible.
Book Synopsis Ultrasonic Inspection Makes Turbine Forgings Safer by : R. N. HAFEMEISTER
Download or read book Ultrasonic Inspection Makes Turbine Forgings Safer written by R. N. HAFEMEISTER and published by . This book was released on 1957 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Non-destructive Testing by : Standards Association of Australia
Download or read book Non-destructive Testing written by Standards Association of Australia and published by . This book was released on 1994 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ultrasonics in the Heavy Forging Industry by : James C. Hartley
Download or read book Ultrasonics in the Heavy Forging Industry written by James C. Hartley and published by . This book was released on 1951 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because the heavy forging industry is one of the most logical fields for the application of non-destructive ultrasonic testing, this method has progressed rapidly and received widespread acceptance. The large masses of metal which are handled lend themselves well to this type of inspection. It is true, further, that forgings are employed where quality requirements are highest and stress conditions most critical. Ultrasonic inspection of such products is justified, not only as a final inspection standard, but also as a routine check during processing. One of the advantages of the ultrasonic inspection method is its ability to indicate the location and approximate magnitude of internal cracks or similar defects which might progress in service, or, acting as stress raisers, cause premature failure of the part. There should be little doubt that the ultrasonic method is entirely practical for such applications and can be employed not only in the investigation of forged steel sections, but for a number of other materials as well. Certain materials, among them the socalled super alloys used for high temperature service for gas turbines and jet engines, exhibit a marked tendency to change ultrasonic transmission dependent upon the degree of refinement of the structure. This fact is useful in determining whether or not satisfactory refinement by forging has been effected.
Book Synopsis Forging Equipment, Materials, and Practices by : Taylan Altan
Download or read book Forging Equipment, Materials, and Practices written by Taylan Altan and published by . This book was released on 1973 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: The handbook provides design engineers with up-to-date information about the many aspects of forging including descriptions of important developments made more recently by industry and/or government. The handbook describes suitable measures for in-process quality control and quality assurance, summarizes relationships between forging practices and important mechanical properties and compares various forging devices to aid in equipment selection. Attention is also given to describing practices for relatively new materials and emerging forging practices. (Modified author abstract).
