Download or read book Machining Damage Studies in Beryllium written by F. Morrow and published by . This book was released on 1965 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Damage in Machined Beryllium written by Stanley W. Porembka and published by . This book was released on 1965 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of machining damage effects in beryllium was made. Surface damage is caused by twinning and microcracking as a result of various machining operations. Twinning is a result of surface working while microcracks initiate at intersections of twins and grain boundaries, at twin-matrix interfaces, at impurity particles, and in heavily twinned regions. These phenomena may be due to residual stresses in wrought products as well as machining parameters such as tool type, feed, and speed and depth of cut. The loss of mechanical properties due to machining damage is reviewed. Also presented is a study of surface damage actually encountered with machining of the shingles for the Gemini spacecraft.
Download or read book The Maifestation and Alleviation of Machining Damage in Beryllium written by W. Taylor and published by . This book was released on 1967 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Machining Damage on Tensile Properties of Beryllium written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: It is well established that damage introduced at the surface of beryllium during machining operations can lower its mechanical properties. Tensile tests were conducted to illustrate this on beryllium presently being used for parts in the W79 program and similar to the new powder-processed beryllium specified for production (tentative specification MEL 76-001319). The objective of this study is to quantitatively illuminate the importance of controlling machining damage in this particular grade of powder-processed beryllium.
Download or read book Beryllium Science and Technology written by Dennis R. Floyd and published by Springer. This book was released on 2014-11-14 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Machining on Properties of Impact ground Beryllium written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Previous studies indicated that twinning and microcracks introduced during machining degrade the mechanical properties of ingot beryllium and earlier grades of powder-origin beryllium. In this study on impact-ground beryllium we found that twinning caused by machining lowered the ultimate strength from 360 to 290 MPa (52,000 psi to 42,000 psi) and the elongation from 4% to less than 1% in the longitudinal direction--with similar results for the transverse direction. It is possible to restore the mechanical properties by chemically removing the damaged layer or by heat treatment. It is also possible to avoid machining damage; mechanical properties of a properly machined beryllium can be as high as carefully etched beryllium.
Download or read book Grinding Induced Machining Damage in Beryllium written by W. TAYLOR and published by . This book was released on with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Milling of Beryllium for Machining Damage Removal written by and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Machining Data for Beryllium Metal written by Air Force Machinability Data Center and published by . This book was released on 1966 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains evaluated machining information for beryllium which has been extracted from many sources. Machining data are tabulated and presented in chart form for the following processes: turning, milling, drilling, band sawing, grinding, boring, trepanning, reaming, routing, tapping, electrical discharge machining, electrochemical machining, and chemical machining. Also included is a general comment section dealing with the problems associated with beryllium machining, such as twinning, microcracking, toxicity, chipout and spalling, and cutting fluids. (Author).
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Machining of Beryllium written by C. T. Olofson and published by . This book was released on 1959 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book MTR Beryllium Machining History written by J. M. Case and published by . This book was released on 1955 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 1472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 1292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1985 with total page 1346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Abbreviated Machining Schedule for Fabricating Beryllium Parts Free of Surface Damage written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abbreviated Machining Schedule for Fabricating Beryllium Parts Free of Surface Damage written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
