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three-flute countersinks

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Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002137
EISBN: 978-1-62708-188-7
... Abstract Countersinking, counterboring, and spotfacing operations can be carried out on drilling machines and usually follow drilling operations. This article discusses five common types of countersinking tools or countersinks, namely, machine, three-flute, single-flute, insert-type...
Image
Published: 01 January 1989
Fig. 2 Chatterless countersinks. (a) Standard chatterless countersink. (b) Chatterless countersink with three main flutes and three intermediate flutes More
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003426
EISBN: 978-1-62708-195-5
... equipment. The article provides a discussion on reaming, countersinking, and three recommended choices of cutting tools for producing a countersink in carbon/epoxy structure. The cutting tools include: standard carbide insert cutters, solid carbide cutters, or polycrystalline diamond (PCD) insert cutters...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003042
EISBN: 978-1-62708-200-6
... cutting flutes produces a fuzz-free countersink edge. This configuration is shown in Fig. 12 . Fig. 12 Optimal countersink drill for aramid composites Laser Cutting Focused laser beams are used to cut a wide range of composite substrates. While most laser cutting has been performed...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002135
EISBN: 978-1-62708-188-7
... A DRILL for cutting metal is a rotary end cutting tool with one or more cutting lips and usually one or more flutes for the passage of chips and the admission of cutting fluid. Drilling is usually the most efficient and economical method of cutting a hole in solid metal. Drilling is often done...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002194
EISBN: 978-1-62708-188-7
... the drill to bind (which causes torsion drill failures) or to dwell (which results in extended abrasive contact between the drill point and the chips). Frequent extraction of the drill is necessary to remove congested chips from the flutes. Tool life is extended by using a carbide spade drill with hand...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003427
EISBN: 978-1-62708-195-5
... nut has three lobes that serve as driving ribs. During installation, at a predetermined preload, the lobes compress the nut material into the flutes of the pin and form the locking feature. Figure 18 shows the installation process. The natural advantage for composite structure is that titanium alloy...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006494
EISBN: 978-1-62708-207-5
... to an alloy and temper with better machinability reduced cost. When alloy AA 6061-T6 (solution heat treated and artificially aged) was used to make a hexagonal nut ( Fig. 6 ), a lead of three threads chamfer on the tap form was required to produce a thread without tearing. This required cutting off a length...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003424
EISBN: 978-1-62708-195-5
... of delaminations, as shown in Fig. 3 . This carbon/epoxy sample had three machining operations performed–drilling, countersinking and milling of the top surface. Fig. 3 Typical machined surface of carbon/epoxy composite Face Milling As with peripheral milling, face milling can be accomplished...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002184
EISBN: 978-1-62708-188-7
... force required in turning aluminum is only about 35% of that required in turning low-carbon steel. Consequently, as shown in Fig. 3 , the number of cubic millimeters of metal that can be removed per minute per unit kilowatt expended is approximately three times as great for aluminum alloy 2017-T4...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002178
EISBN: 978-1-62708-188-7
... this relation for pearlitic irons (grades 80-60-03 and 100-70-03) as a function of feed rate. An increase in feed caused a decrease in tool life. These two pearlitic irons were machined dry. Fig. 7 Effect of variables on relation between cutting speed and tool life for three ductile irons. (a) Ferritic...