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servomechanical system

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Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002360
EISBN: 978-1-62708-193-1
... = 0.22, B = 7.7 mm, and W = 50 mm. Lead geometry per Ref 7 and direct current of 10 A Table 2 Comparison of electromechanical fatigue testing systems Parameter Forced displacement Forced vibration Rotational bending Resonance Servomechanical Tension Yes Yes No Yes Yes...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003259
EISBN: 978-1-62708-176-4
... and by changing the gear ratio. A closed-loop servodrive system ensures that the crosshead moves at a constant speed. The desired or user-selected speed and direction information is compared with a known reference signal, and the servomechanism provides positional control of the moving crosshead to reduce any...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003194
EISBN: 978-1-62708-199-3
..., filters, storage tanks, and heat exchanger; electrolyte clarifier may be required; servomechanism for process control optional Rigid machine tool for close control of spark gap; EDM power supply; servomechanism to control electrode movement; dielectric fluid pressure or vacuum system and filter. CNC...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002166
EISBN: 978-1-62708-188-7
... be held to a maximum total indicator reading (TIR) of 0.001 mm (0.00004 in.). Deflection in wheel dressing can be held to 0.004 mm (0.00015 in.) for traversing 200 mm (8 in.) on hardened and ground V-ways. The spark gap is normally held at 0.0125 to 0.075 mm (0.0005 to 0.0030 in.) by a servomechanism...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003317
EISBN: 978-1-62708-176-4
... G.A. , A Thermal Control System for Thermal/Mechanical Cycling , J. Test. Eval. , Vol 13 , 1985 , p 363 – 366 10.1520/JTE10963J 49. Wood W.P. and Cork J.M. , Pyrometry , McGraw-Hill , 1941 50. Forsythe W.E. , Optical Pyrometry: Temperature—Its Measurement...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003320
EISBN: 978-1-62708-176-4
... in a complex three-dimensional stress condition then can be studied. However, the operating system of this type of testing machines is very complicated and expensive. Very few testing machines of this type are available in the world ( Ref 5 ). Fig. 8 Tubular specimen for triaxial fatigue test...
Book Chapter

By Yoram Koren
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002174
EISBN: 978-1-62708-188-7
... of the control system to the Servomechanism Laboratory of the Massachusetts Institute of Technology (MIT). The challenge was met successfully by MIT, and in 1952 a three-axis Cincinnati Hydrotel milling machine controlled with digital technology was developed. This digital technology was termed numerical control...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001444
EISBN: 978-1-62708-173-3
... servomechanisms or feedback controllers, and workpiece travel speed can be held within extremely narrow limits by precision, mechanical worktable traverse, or rotary-motion systems. To compensate automatically for the effect of any variation in voltage on focus, the servomechanism regulating the beam focus can...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005614
EISBN: 978-1-62708-174-0
..., fast-response closed-loop servomechanisms or feedback controllers. Also, workpiece travel speed can be held within extremely narrow limits by precision, mechanical worktable, gun linear, or rotary-motion systems. To compensate automatically for the effect of any variation in voltage on focus...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003307
EISBN: 978-1-62708-176-4
... pure creep conditions, many applications require an understanding of how creep-fatigue conditions affect the life of a component. Using the fossil energy industry as an example, their systems are rarely operated under steady-state conditions. Due to factors such as shutdowns for safety inspections...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002389
EISBN: 978-1-62708-193-1
... Fig. 3 Formation of deformation zones ahead of crack tip upon initial loading in the creep regime Fig. 5 Schematic of the contour integral in terms of crack-tip coordinate system used to define C ∗ . n is the unit normal vector. Fig. 4 Creep zone evolution. (a) Small scale...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002129
EISBN: 978-1-62708-188-7
... actuating system to guide the single-point cutting tool that generates the desired profile as the workpiece is rotated. Specially designed lathes known as T lathes are used to turn large diameters. These lathes have their carriage ways running parallel to the face of the chuck or at right angles...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003063
EISBN: 978-1-62708-200-6
... Process equipment Reformers, reactors, hot isostatic pressing Chemical process industry, petroleum refining Waste incineration systems Handling equipment, internals, cleanup Conventional and advanced toxic/hazardous waste facilities, with or without energy recovery Separation/filtration Filters...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.9781627081993
EISBN: 978-1-62708-199-3