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Torque

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270097
EISBN: 978-1-62708-301-0
...Abstract Abstract Metal particles were frequently detected in the oil of an aircraft engine, triggering an investigation that led to a torque sensor and its mounting components. The sensor assembly was removed and examined in greater detail. As the chapter explains, investigators discovered...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400161
EISBN: 978-1-62708-316-4
... and screw-driven servo presses and describes some of the innovations and improvements made possible with high-torque servo motors. The chapter provides examples of how servo presses are used in blanking, warm forming, and other applications and compares the operating characteristics of two 1100-ton presses...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060195
EISBN: 978-1-62708-355-3
... and provides some brief background information to help the reader understand the relationships between torque, angle-of-turn, tension, and friction. The chapter also describes the test methods for determining materials properties of externally threaded fasteners, namely, product hardness; proof load by length...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900013
EISBN: 978-1-62708-350-8
...Abstract Abstract The unique advantages of the nitriding process were recognized by the Germans in the early 1920s. It was used in applications that required: high torque, high wear resistance; abrasive wear resistance; corrosion resistance; and high surface compressive strength. This chapter...
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
... of mechanical fastening include: Relatively low joint efficiencies are obtained. Due to the stress concentration caused by the presence of holes, fatigue properties are reduced. Obtaining and maintaining proper preload (torque) on an installed fastener can be problematic. Some high-performance...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610263
EISBN: 978-1-62708-303-4
... relationship of bolt load to working load with an elastic fastener and a rigid structure. (c) Actual relationship (both fastener and structure elastic) of bolt load to working load. Source: Ref 7 Fig. 6 Nomograph for torque on bolts. Source: Ref 8 Fig. 7 Typical distribution of energy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780109
EISBN: 978-1-62708-268-6
... nuts, bolts, screws, and other threaded joints. Threaded fasteners can disconnect for any of several reasons, including vibration, inadequate torque (during assembly or maintenance), missing threaded fastener security systems (discussed subsequently), and, in some cases, overtightening. In many...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780105
EISBN: 978-1-62708-281-5
... Fig. 4 Torque rheometry, function of molecular weight Fig. 5 Torque rheometry, function of parts per hundred of filler Fig. 6 Torque rheometry, function of parts per hundred of lubricant Fig. 1 ASTM solution viscosity relationships Common name Recommended...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250311
EISBN: 978-1-62708-345-4
... this solution, reduced to the simplest form applicable to spur gear teeth, is: (Eq 1)  Contact stress  = ( P ' × B ) 1 / 2 × E F where the contact force per unit width, P ′, is: (Eq 2) Pinion torque Pinion base radius  ×  effective face width and (Eq 3...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270102
EISBN: 978-1-62708-301-0
... between the bolt and the bolt hole was maintained near the higher limit of the specified 3 to 28 μm. It was reported that in some engines, the torque setting of friction clutch was found to be 29 to 30 kg.m, compared with the specified range of 20 to 22 kg.m. In addition, the starting torques were...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290085
EISBN: 978-1-62708-319-5
... (spherical, rounded, and irregular) in a paraffin wax binder. Torque rheometry identifies significant differences in solids loading for the target 1 N ∙ m mixing torque. Fig. 5.24 Relative viscosity versus composition (small particle content) for a bimodal mixture of spheres at a solids loading...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300047
EISBN: 978-1-62708-323-2
... mode under certain driving conditions. If a driver had other keys and the like attached to the ignition key, then this produced extra weight and extra torque—enough torque to overcome the system friction that held the ignition key to on position. The friction of the components in the key/lock...
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
... installation, various sealing operations must be performed. Last, the leading edges, wing tips, and control surfaces of the wing torque box must be assembled. A typical fighter aircraft can have 200,000 to 300,000 mechanical fasteners, whereas a commercial airliner or transport aircraft can have 1,500,000...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400145
EISBN: 978-1-62708-316-4
..., a clutch/brake, a drive shaft, a connection (also called a pitman arm or connecting rod), and a slide (ram) guided by the gibs ( Fig. 10.1 ). Depending on the design, a press may have gear set(s) to reduce the speed and increase the torque ( Ref 10.2 , 10.3 , 10.4 ). Fig. 10.1 Schematic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270130
EISBN: 978-1-62708-301-0
... valve had failed. During an inspection campaign, one bolt each on five shutters belonging to different aircraft were also found failed. Also, a new bolt had failed during fitment. Investigations revealed that the five bolts had failed by SCC and the new bolt by torsional overload due to excessive torque...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040115
EISBN: 978-1-62708-300-3
... motion into reciprocating linear motion. The eccentric shaft is connected through a clutch and brake system directly to the flywheel ( Fig. 11.8 ). In designs for larger capacities, the flywheel is located on the pinion shaft, which drives the eccentric shaft ( Fig. 11.9 ). The constant clutch torque, M...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460209
EISBN: 978-1-62708-285-3
... as a fabrication method for heat exchangers, torque sensors for steering shafts, and electrically conductive tracks. Heat Exchangers Shafts Formation of Electrically Conductive Tracks on Plastic Mold Components Generally, numerous automotive components are exposed to harsh environments during...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780093
EISBN: 978-1-62708-268-6
... if such dimensions are biased within the tolerance band. Techniques in this area include standard measuring equipment, optical comparators, coordinate-measuring machines, surface-finish gages, scales, and torque wrenches. Nondestructive test approaches for evaluating internal component positions and relationships...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480265
EISBN: 978-1-62708-318-8
...–6.858 0.230–0.270 1.52–2.79 0.060–0.110 Typical torque values for fasteners Table 12.15 Typical torque values for fasteners Bolt or screw size (a) , in. Self-locking nuts N · m lbf · in. 10–32 3–5 30–40 ¼–28 10–11 85–100 5 16 –24 23–25 200–225 ⅜–24 40...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320001
EISBN: 978-1-62708-347-8
.... These processes are through hardening, case carburizing and hardening, nitriding, carbonitriding, and induction hardening. Analyses of these processes show case carburizing and hardening offers the highest torque-carrying capacity of gears. In fact, the torque capacity of a carburized and hardened gear set can...