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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
... 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 During cyclic spin tests on an LP turbine disc of an aircraft engine...
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Published: 01 November 2011
) arched prongs of a single thread lock the unit grip screw. Source: Ref 8.6 , p 9.8 More
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
... mm (<0.19 in.) in diameter are considered to be nonstructural; they are used 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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.9781627083010
EISBN: 978-1-62708-301-0
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870285
EISBN: 978-1-62708-314-0
... in the injection chamber of the molding machine. A typical injection molding cycle is illustrated in Fig. 10.20 . As the material progresses 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...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400233
EISBN: 978-1-62708-316-4
... the punch to be accurately lo- cated and locked in a retainer by a ball. barbering Rough grinding, by hand, of excess stock in a die. barber shop An area usually designated just for barbering of dies. 234 / Sheet Metal Forming Fundamentals bead (1) A narrow ridge in a sheet metal work piece or part...
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
... in tooling such as drill templates, and in many applications in which access is limited, it may be the only viable method. A typical tight-access situation is shown in Fig. 11.5 , where a mechanic is installing the collars on Hi-Lok two-part self-locking fasteners. For tight-access areas, right-angle drill...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410213
EISBN: 978-1-62708-265-5
...: Ref 11.6 , 11.12 The decreased ability to plastically deform at low temperatures is attributed to the inability of screw dislocations to cross slip. The screw dislocations therefore are restricted to their slip planes, cannot bypass obstacles, and cannot contribute to mechanisms...
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290279
EISBN: 978-1-62708-306-5
..., automotive, and construction industries. Machine Screws and Bolts Thermoplastic resin molded parts are frequently secured together with machine screws or bolts, nuts, and washers ( Fig. 10.5a ). Particular attention should be paid to the head of the fastener. Conical heads produce undesirable tensile...
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
... of the temperature capability of the matrix. The glass transition temperature of a polymeric material is the temperature at which it changes from a rigid glassy solid into a softer, semiflexible material. At this point, the polymer structure is still intact, but the cross links are no longer locked in position...
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
... 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 is to use formed plastics to replace the screws...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610263
EISBN: 978-1-62708-303-4
...) is superior in fatigue when compared to the American Standard thread 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...
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
... 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 elastic strain. The force required to push the compact out...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230065
EISBN: 978-1-62708-298-3
... starting with a sample of 0.49 wt% BeO. In the ore samples obtained from the Mount Wheeler Mine, the liberation of phenacite was found to be roughly 70% between 100 and 325 mesh. All of the bertrandite was liberated below 65 mesh. In the stockpile, though, roughly 10% of the bertrandite was locked...
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...
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...
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
... 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 and increasingly being specified for hardware used in the computer industry, in business...