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Shafts (power)

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050191
EISBN: 978-1-62708-311-9
... than ⅔ of tooth height Phase I power requirements Low frequency 1176 kW High frequency 784 kW Phase II power requirements Low frequency 480 kW High frequency 170 kW Source: Ref 6 Fig. 10.18 Shaft with changes in diameter. (a) A single-shot coil vertically heats...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250001
EISBN: 978-1-62708-345-4
... action than that of spur gears. However, unlike spur gears, helical gears generate axial thrust, which causes slight loss of power and requires thrust bearings. Herringbone gears ( Fig. 11 ), sometimes called double helical gears, are used to transmit motion between parallel shafts. In herringbone...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050317
EISBN: 978-1-62708-311-9
... of the cam will heat the cam without a dead spot. Different workpiece shapes also dictate frequency selection. For instance, rounded-square–shaped power transmission shafts will uniformly heat with a helical encircling coil on 10 kHz, while the same coil design will heat only the corners on 450 kHz...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220085
EISBN: 978-1-62708-341-6
... power density, time in coil, and case depth for progressive hardening of medium-carbon steel shafts under various conditions. Metal is SAE 1045 normalized steel. Coil length, 10 mm (0.39 in.). Two turns. Difference between coil ID and shaft OD, 3.5 mm (0.14 in.). Case depth determined by location...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430017
EISBN: 978-1-62708-253-2
... the final superheater then goes to the turbine. Steam turbines have been used predominantly as prime movers in all thermal power stations. The turbine generator consists of a series of interconnected steam turbines and a generator on a common shaft. There is an HP turbine at one end, followed...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050057
EISBN: 978-1-62708-311-9
... voltage, V Workpiece power, kW Coil losses, kW Coil efficiency, % Power factor, kVA Apparent power Power coil 88.6 68.0 10.4 87 0.22 354 Bare coil 30.6 8.4 4.0 68 0.10 122 Bare coil (a) 87.0 68.0 32.4 68 0.10 992 Note: (a) Bare coil with the same workpiece power...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400161
EISBN: 978-1-62708-316-4
...-capacity presses. In servo-drive presses, the installed motor power is larger than in comparable-capacity mechanical presses. However, the servo-motor power is used only when the press is operated to conduct a stamping operation (deep drawing, blanking, coining), because there is no continuously rotating...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220253
EISBN: 978-1-62708-341-6
... not be over-looked. Often, this necessitates an increase in power to maintain the same production speed as that employed under an ambient (air) atmosphere. Loading and discharging equipment is usually selected on the basis of billet or bar geometry. In contrast, a number of different mechanisms can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040115
EISBN: 978-1-62708-300-3
... lengths, ram velocities, and energy and stiffness requirements. It also includes information on gravity- and power-drop hammers and where and how they are typically used. gravity-drop hammers hydraulic presses mechanical presses power-drop hammers screw presses 11.1 Introduction 11.2...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250293
EISBN: 978-1-62708-345-4
... surface. As a result, single-enveloping worm gear sets are used in applications similar to those for helical gears on crossed shafts: to transmit motion where little power is involved. Considerable power must be transmitted by commercial worm gear sets; therefore, the gears of these sets are throated...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220001
EISBN: 978-1-62708-341-6
...., the workpiece. These so-called eddy currents dissipate energy and bring about heating. The basic components of an induction heating system are an induction coil, an alternating-current (ac) power supply, and the workpiece itself. The coil, which may take different shapes depending on the required heating...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270005
EISBN: 978-1-62708-301-0
... of an Implant Deliberate damages are caused by sabotage by antisocial elements. In almost every major accident, the first suspect is sabotage until disproved. Sabotage by deliberate detonation of powerful explosives has been practiced by such elements to cause destruction of structures, plants...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490001
EISBN: 978-1-62708-340-9
..., and transportation—depends on the availability of electricity. Types of Electric Power Plants The principal route for producing electricity is the conversion of mechanical energy of rotation into electrical energy using a generator. The large generators used by electric utilities employ a shaft comprising...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050215
EISBN: 978-1-62708-311-9
... workpieces per hour. Table 11.13 shows the production increase from an index fixture. Surface heating is used primarily in the surface hardening of steel parts such as shafts and gears. In this type of application, high power densities and short heating times are used when thin case depths are desired...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220241
EISBN: 978-1-62708-341-6
...- and medium-frequency concentrators are usually of the same grain-oriented silicon steel used for high efficiency in power transformers and electric motors. Such steels would tend to heat dramatically in the magnetic field were it not for the fact that they are in the form of a laminated structure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220185
EISBN: 978-1-62708-341-6
... Circular (a) and slotted (b) concentrator coils; arrows indicate direction of current flow. From E. May, Industrial High Frequency Electric Power , Wiley, New York, 1950 ( Ref 4 ) Fig. 8.37 Concentrator coil for melting the end of a superalloy bar used in production of metal powder in a vacuum...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040141
EISBN: 978-1-62708-300-3
... powered by one or two hydraulic motors. Each adjustment nut rests, through a piston, on an oil cushion of a hydraulic cylinder. During operation, the forging pressure generates in this oil cushion a pressure proportional (about 20%) to the forging pressure. The pressure in this oil cushion is continuously...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220281
EISBN: 978-1-62708-341-6
... of fiber optics. In recent years, line-frequency induction heating of vessels has come into use in the chemical, paint, plastics, and related industries. The greatest use of such heating methods is probably in the manufacture of synthetic resins. Typical holding capacity and power requirements...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490265
EISBN: 978-1-62708-340-9
... are among the most critical and highly stressed components of the steam power plant. Failures of rotors have resulted in a wide spectrum of damage, ranging from lengthy and costly forced outages to catastrophic bursts. Histories of known rotor failures and discussions of failure causes have been presented...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050001
EISBN: 978-1-62708-311-9
... into prominence in the 1930s, when high-frequency motor-generator sets were developed and used for the induction hardening of crankshaft journals and bearings. In 1938, Caterpillar installed a power supply for induction hardening track links, and by 1943 they had 16 induction-hardening units in production ( Ref 1...