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electrochemical deep-hole drilling

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Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003597
EISBN: 978-1-62708-182-5
...Abstract Abstract Specific machining processes that employ electrochemical machining technology include deburring and deep-hole drilling. This article describes the principle and applications of electrochemical deburring as well as the machine tools used in the process. The system, process...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002119
EISBN: 978-1-62708-188-7
... Lathe 1.60 63  Holes Drill 1.60 63  Inside diameter Grind 0.40 16 Cam (1018) Grind 0.40–0.80 16–32 Key (1018) Mill 3.2 125 Holder (1018) Mill 3.2 125 Bracket (1018) Mill 3.2 125 Plate (1018) Mill 3.2 125 Block (1018) Mill 3.2 125 Junction block (1018...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003596
EISBN: 978-1-62708-182-5
... constant during the process. This is known as machining under equilibrium conditions. Electrochemical machining principles have been used to perform a variety of machining operations ( Ref 1 ), for example, turning, drilling, deburring, wire cutting, deep-hole drilling, and grinding. Electrochemical...
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
... and replace broken drill bits. While drilling holes in aerospace aluminum alloys, researchers at École de Technologie Supérieure ( Ref 3 ) observed that at lower-than-recommended cutting speeds, the chip is generally continuous for different alloys. For AA 6061-T6 and AA 7075-T6 aluminum alloys, the chip...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002160
EISBN: 978-1-62708-188-7
... be used for a variety of tasks, including some that would be difficult, impossible, or time consuming by mechanical machining. The tasks include machining hard materials (such as hardened steel and heat-resistant alloys) and oddly shaped, small, deep holes. Electrochemical machining is used for operations...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002163
EISBN: 978-1-62708-188-7
... ELECTROSTREAM DRILLING (ES) AND CAPILLARY DRILLING (CD) are electrochemical machining processes that were developed by General Electric and Rolls Royce, respectively, for drilling holes that are too deep to be drilled by electrical discharge machining and too small to be drilled by shaped tube electrolytic...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002188
EISBN: 978-1-62708-188-7
.... Crankshaft Drills Crankshaft drills are useful for producing deep holes. These drills have a heavy web and a helix angle slightly higher than normal; the web is thinned at the chisel point. Cutting action with drills larger than 19 mm ( 3 4 in.) in diameter will be improved by grinding several...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003194
EISBN: 978-1-62708-199-3
.... Typical applications High strength, high hardness materials; high temperature alloy forgings; odd shaped holes and cavities; jet engine blade airfoils; small deep holes; jet engine blade cooling holes; deburring; face turning of disks; tungsten carbide machining; etching of numbers and letters in hard...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006826
EISBN: 978-1-62708-329-4
... ( Ref 4 ). Workpiece rejections and failures may be further reduced by strategic placement of the cutting fluid nozzles ( Fig. 2 ) ( Ref 5 ). Access holes in the body of milling cutters and drill bits that provide thorough-the-tool coolant flow improve the impingement of cutting fluid into the cutting...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002180
EISBN: 978-1-62708-188-7
... of stainless steels. The article describes turning, drilling, tapping, milling, broaching, reaming, and grinding operations on stainless steel. It concludes with information on some of the nontraditional machining techniques, including abrasive jet machining, abrasive waterjet machining electrochemical...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002190
EISBN: 978-1-62708-188-7
..., the usable range of cutting speeds for drilling small holes is closely related to the depth of the hole. Small-diameter holes up to one diameter deep can be drilled at 12 to 15 m/min (40 to 50 sfm). For holes more than one diameter deep, speed should be reduced to 6 to 12 m/min (20 to 40 sfm). Hole...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004210
EISBN: 978-1-62708-184-9
... cathodically protected. In applications involving deep water drilling, increased stress levels, increased run time, use of high-strength/hardness materials, and higher cathodic protection currents can lead to conditions of hydrogen embrittlement and corrosion fatigue. Welded connections on drill ships...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002189
EISBN: 978-1-62708-188-7
... maintain drill life. Dwell of the drill, which often occurs with hand drilling, should be avoided. The best results are obtained with positive-feed equipment. Where practicable, carbide-tipped drills provide optimum life, particularly for deep holes. High-speed tool steel drills are suitable for many...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002168
EISBN: 978-1-62708-188-7
... that allows percussion drilling and the cutting of metals at angles and thicknesses not possible with CO 2 lasers. There are some applications—spot welding and hole cutting, for example—where either laser type can provide acceptable results at comparable speeds. Capabilities and operating ranges for CO 2...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003651
EISBN: 978-1-62708-182-5
...), a large-diameter hole can be drilled. In deeper burials, caution should be used to ensure worker safety and cave-in protection ( Fig. 2 ). If specimens are to be retrieved periodically, for example, after 1, 2, or 4 years exposure, then all specimens of a given retrieval increment should be grouped...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002165
EISBN: 978-1-62708-188-7
... is the dielectric. The drilling speeds can be as high as 25 mm/min (1 in./min). A wide variety of brass and copper electrodes are available, including those with a spiral metal core that removes the spike that normally occurs at the point of a flush hole. This spike is troublesome in deep-hole drilling. Also worth...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002179
EISBN: 978-1-62708-188-7
... 130 120 30 6 High carbon and alloy 150 120 25 5 Gun drills, which consist of a single cutting tip and coolant holes, are effective in the deep-hole drilling of low-carbon steels. Long, continuous chips are more readily removed. Coolant hole and coolant tube drills are also effective...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004113
EISBN: 978-1-62708-184-9
... to get more current under the tank, the anodes are placed under the tank in holes drilled at an angle between 30° and 45° ( Fig. 5 ). This system is effective on tanks typically less than 55 m (180 ft). Monitoring systems should also be installed when installing this type of system. Fig. 5 Plan...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002487
EISBN: 978-1-62708-194-8
... ) to minimize load unbalance, burr formation, and the likelihood that straightness errors will cause the drill to miss the target hole in deep-drilling applications. Drilling through inclined exit surfaces also results in unbalanced loading, which can cause excessive vibration, drill chipping, burr formation...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001233
EISBN: 978-1-62708-170-2
...) Drilling of curvilinear holes. (h) Deburring and radiusing. (i) Electropolishing The rate of material removal in ECM is governed by Faraday's law, since it is a function of current. The primary variables that affect the current density and the material removal rate are: Voltage Feed rate...