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countersinking

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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
... Fig. 11.15 Composite drill configurations Fig. 11.12 Robotic drilling of composite control surface. Source: The Boeing Company Fig. 11.13 Composite outer wing numerically controlled drill jig (NCDJ) drilling system. Source: The Boeing Company Fig. 11.16 Countersinking...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500179
EISBN: 978-1-62708-317-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870449
EISBN: 978-1-62708-314-0
... members are thicker (for a given load). d/t ~ 1 generally provides sufficient bolt bending strength. 13. Countersink depth should not exceed two-thirds of the total sheet thickness. Leaves one-third of total sheet thickness to carry most of the bearing load. 14. The preferred fastener material...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270168
EISBN: 978-1-62708-301-0
... over the rest of the width. The design also specifies countersinking on one side only while the actual plate was countersunk on both sides. The total length of the locking screw should be 10.5 mm. The length of the hole drilled in the disc to accommodate the screws is 6.6 mm. With this design...
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
... the surface finish. Fig. 8.10 Typical assemblies using (a) a bolt and nut and (b) a screw There are many head styles ( Fig. 8.11 ), including protruding tension flange head, protruding shear head, 100° full countersink, and 100° reduced countersink. For structural bolts and screws, the threads...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870063
EISBN: 978-1-62708-299-0
... Wing Box Lower Panel of a Fighter Aircraft This panel was made of aluminum alloy 7075-T6. Most of the corrosion occurred around fastener holes. Extensive intergranular cracking was observed. The report on this case also indicated that pitting occurred in the bores and countersinks of the fastener...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550141
EISBN: 978-1-62708-307-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290279
EISBN: 978-1-62708-306-5
... Tension: Insufficient width, or too few plies oriented in the load direction Cleavage-tension: Insufficient edge distance and width, or not enough cross-plies (e.g., +45° and –45°) Fastener pull-through: Countersink too deep, or use of a shear head fastener. Fastener failure: Fastener too...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610377
EISBN: 978-1-62708-303-4
... with freeze-thaw — –11.6 —   Moderate — –7.1 –13.3   Moderate with freeze-thaw — –8.4 — Improper fastener seating depth   80% thickness –16.4 — —   100% thickness –34.3 — — Tilted countersinks   Away from bearing surface (b) — –16.7   Toward bearing surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.9781627083164
EISBN: 978-1-62708-316-4
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870373
EISBN: 978-1-62708-314-0
... Severe (b) –10.3 –30.8 Severe with freeze/thaw … –11.6 … Moderate … –7.1 –13.3 Moderate with freeze/thaw … –8.4 … Improper fastener seating depth 80% thickness –16.4 … … 100% thickness –34.3 … … Tilted countersinks Away from bearing surface (b) … –16.7...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480293
EISBN: 978-1-62708-318-8
... and one countersink (70 to 90°) C: with hole and two countersinks (70 to 90°) D (c) : smaller than 6.35 mm (0.25 in.) inscribed circle with hole E (c) : smaller than 6.35 mm (0.25 in.) inscribed circle without hole F: with hole-chip grooves on two rake faces G: with hole and chip grooves on two rake faces...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400005
EISBN: 978-1-62708-316-4
...-headed rivets ( Fig. 2.30 ). Dimpling is most commonly applied to sheets that are too thin for countersinking: Equipment: special dimpling machines Material: alloy steels; aluminum alloys; titanium alloys; iron-, nickel-, and cobalt-base superalloys; beryllium; tungsten Process...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480265
EISBN: 978-1-62708-318-8
.... Flat sets are used for nonflush upsets on interior surfaces, but conical sets are preferred to reduce cracking, especially for larger rivet sizes. The use of knurled flat sets is not recommended. Also, rivets are never upset into a countersink. Before installing rivets, parts must be tightly...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480243
EISBN: 978-1-62708-318-8
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610263
EISBN: 978-1-62708-303-4
... resistance. In order of decreasing fatigue strength, fabrication techniques are coin-dimpling, spin-dimpling, drilling, and machine countersinking. Many large structures are assembled with mechanical fasteners. In the aerospace industry, fatigue life improvement of aluminum structures is often...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740213
EISBN: 978-1-62708-308-9
..., chamfering, recessing, thread cutting) Shaping (planing, vertical shaping) Milling (hobbing, generating, thread milling) Drilling (reaming, tapping, spot facing, counterboring, countersinking) Sawing (filing) Abrasive machining (grinding, honing, lapping) Broaching (internal and surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310285
EISBN: 978-1-62708-326-3
... and ability to cut. Tools such as twist drills and countersinks, milling cutters, turning tools, boring tools, broaches, and saw blades are just a few examples of such applications. The tool steels used for cutting tool applications are usually heat treated to very high hardness, typically 60 to 70 HRC...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.9781627083010
EISBN: 978-1-62708-301-0