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locking screws

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270168
EISBN: 978-1-62708-301-0
... due to the shearing of the screws that hold it in place. They also provided recommendations to remediate the problem. locking screws low pressure turbine discs macrostructural evaluation SEM fractography visual examination Summary Background Visual Examination of General Physical...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290207
EISBN: 978-1-62708-306-5
... to attach brackets and other miscellaneous hardware. The threads on nonstructural bolts and screws can be either machined or rolled. Some nuts are self-locking, while others are not. Cotter pins or safety wire are used to secure those without self-locking features. Self-aligning nuts (up to 8...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.9781627083010
EISBN: 978-1-62708-301-0
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.9781627083164
EISBN: 978-1-62708-316-4
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870307
EISBN: 978-1-62708-314-0
..., headed pins, lock pins, cotter pins, threaded inserts, retaining rings, and washers. Fig. 11.17 Typical aerospace fastener types Because so many fasteners of so many different types are used in aircraft construction, aerospace companies have developed fastener usage policies that specify...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870285
EISBN: 978-1-62708-314-0
... down the screw, it is melted by a combination of heat from the barrel and the shearing action of the screw. The material accumulates in the barrel and is then injected under high pressure as a hot fluid into a relatively cold closed die. After the desired shot size is accumulated, the screw stops...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410213
EISBN: 978-1-62708-265-5
... Solutions , Metall. Trans. , Vol 3 , 1972 , p 5 – 26 10.1007/BF02680580 11.13 Vitek V. and Duesbery M.S. , The Behavior of Screw Dislocations in BCC Metals under the Effect of Applied Stresses Other than Pure Shear , Mechanical Properties of BCC Metals , Meshii M. , Ed...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250077
EISBN: 978-1-62708-345-4
... degraded or prematurely cured. Injection Molding Machines Although there are many variations in thermoplastic injection molding machines, the reciprocating-screw machine has become the most common type, and the following description of its operation illustrates the basic principles of all types...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300363
EISBN: 978-1-62708-323-2
... easily they are swallowed. The most significant appliance from the business standpoint (size of the market) may be braces for straightening teeth. The straightening appliances are tribosystems in themselves, with screws and attachments that must work without galling. The trend in the United States...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290279
EISBN: 978-1-62708-306-5
... of mechanical fastening are in the aerospace, automotive, and construction industries. Machine Screws and Bolts Molded-in Threads Self-Threading Screws Rivets Spring-Steel Fasteners Press Fits Snap Fits Solvent bonding and adhesive bonding are assembly processes in which two or more...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500289
EISBN: 978-1-62708-317-1
..., creating a positive lock (from closure) overlaid by nonpositive radial compressive stresses (view 4). Fig. 14.1 Illustration of the principle of punch riveting. Source: Ref 14.1 The advantages of the punch riveting process are illustrated in Fig. 14.1 , which shows the smoothness...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550325
EISBN: 978-1-62708-307-2
..., but the cross links are no longer locked in position. A resin should never be used above its T g unless the service life is very short. In contrast to thermosets, thermoplastics are high-molecular-weight resins that are fully reacted prior to processing. They melt and flow during processing but do...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060195
EISBN: 978-1-62708-355-3
... true when developing fastener-locking devices such as locknuts, serrated underheads, special thread forms, and thread-locking adhesives and friction patches. Achieving a specific clamp force during installation is always the desired result, and the roles of thread friction and underhead friction must...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230065
EISBN: 978-1-62708-298-3
.... In the stockpile, though, roughly 10% of the bertrandite was locked with quartz in the 65- to 100-mesh fraction. Different operating parameters were studied for optimizing the grade and recovery of bertrandite and phenacite: type of water, grinding time and size, pulps in solid, temperature, sequence...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000185
EISBN: 978-1-62708-312-6
... components 434L Seat belt locks 304L Windshield wiper pinions 410L Windshield wiper arms 316L Manifold heat control valves 304L Hardware Lock components 304L, 316L Threaded fasteners 303L Fasteners 303L, 304L, 316L Quick-disconnect levers 303L, 316L Spacers...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610263
EISBN: 978-1-62708-303-4
... form with a flat crest and root. Axial load fatigue tests on “unified” screw threads for use in the United States of America, Canada, and Britain show a somewhat higher fatigue strength than the British Standard Whitworth ( Table 2 ). The unified thread differs from the American Standard thread...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290111
EISBN: 978-1-62708-319-5
... the oscillating feed shoe. Variations in powder flow result in fluctuation in component mass. Densification occurs by movement of the punches toward the compact center, using motions controlled by either mechanical cams or hydraulic pistons. The compacted powder is mechanically locked into the die due to residual...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720021
EISBN: 978-1-62708-305-8
... be associated with locked-up internal stresses of a large magnitude. As an example, parts with high locked-up stresses may spring open when cut with a saw. Conversely, when locked-up stresses act in the opposite direction the cracks will be tight, due to compressive stresses ( Fig. 1b ), and the part might...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170520
EISBN: 978-1-62708-297-6
... castings are also extensively used in general hardware and electronic and electrical fittings of all kinds, including parts for domestic appliances (for example, washing machines, vacuum cleaners, mixers, and so on), oil burners, motor housings, locks, and clocks. Zinc castings are frequently...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300227
EISBN: 978-1-62708-323-2
... applications for water-loving wood bearings, such as lignum vitae, was for propeller shaft bearings on ships. They were made from parallel plates of wood, mechanically locked into giant metal half shells; seawater was the lubricant. These bearings would often outlast the ship. This type of bearing is still...