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Viewing 121 to 150 of 19881
2015-01-14
Technical Paper
2015-26-0187
Venu Ganti, Yogesh Dewangan, Saurabh Arvariya, Shyamsananth Madhavan
Abstract Scuffing is an instantaneous failure which occurs when the meshed gear flanks undergo adhesive wear under extreme operating temperatures at medium- or high-speed conditions. It is one of the common failures in transmission gears, which tend to operate under long-duty cycle hours. The tip and the root regions often experience higher contact pressures because of the loading and surface curvature. These higher pressures, coupled with higher sliding velocities and heat generation, make the tip and root regions in the gear susceptible to scuffing. Gear geometry, material composition and lubricant properties influence scuffing. A balanced gear tooth design with lower sliding velocities is often chosen as an approach to avoid scuffing. However, in the current scenarios of transmissions with high power density requirements, achieving a balanced gear tooth design is rare. Lubricants with higher viscosity avoid scuffing, but have adverse effects on the transmission efficiency.
2015-01-14
Standard
AMS5706M
This specification covers a corrosion and heat-resistant nickel alloy in the form of bars, forgings, flash welded rings, and stock for forging, flash welded rings.
2015-01-14
Standard
AMS5711E
This specification covers a corrosion and heat-resistant nickel alloy in the form of bars, forgings, flash welded rings, and stock for forging, flash welded rings, or heading.
2015-01-14
Standard
AMS5707M
This specification covers a corrosion and heat-resistant nickel alloy in the form of bars, forgings, flash welded rings, 3.25 inches (82.6 mm) and under and stock of any size for forging and for flash welded rings. (See 8.5).
2015-01-12
Article
Oxford Performance Materials launched in December the first two grades of its OXFAB 3-D printing technology—OXFAB-N and OXFAB-ESD—suitable for aerospace and other industrial markets, including transportation, energy, and semiconductor applications. The company claims this is the first time PEKK is being used for 3-D printing in aerospace and industrial applications.
2015-01-09
WIP Standard
AMS5629G
This specification covers a corrosion-resistant steel in the form of bars, wire, forgings, flash welded rings, extrusions, and stock for forging, flash welded rings, or extrusion.
2015-01-08
WIP Standard
J2267
This SAE standard applies to all forestry machines exposed to the hazard of objects penetrating the front of the operator station (other than the roof). This would include: Front guards for yarders with cabs mounted next to the tower; Front guards for forestry machines capable of handling material in front of and above the deflection limiting volume (DLV); such as knuckle boom log loaders and swing to tree feller bunchers; but excluding rubber-tired or tracked front-end loaders when equipped with buckets or forks with hold down grapple arm(s); and excluding forwarders and clambunk skidders fitted with load bunk headboards meeting the requirements of ISO 11850.
2015-01-07
Standard
AMS7904E
This specification covers beryllium in the form of bars, rods, tubing, and machined shapes fabricated from vacuum hot pressed powder.
2015-01-07
Standard
AMS7906D
This specification covers beryllium in the form of bars, rods, tubing, and machined shapes from vacuum hot pressed powder.
2015-01-07
Standard
AMS7908D
This specification covers beryllium in the form of bar, rod, tubing, and shapes fabricated from beryllium powder consolidated by hot isostatic pressing (HIP).
2015-01-07
Standard
AMS7907D
This specification covers beryllium in the form of bars, rods, tubing, and machined shapes fabricated from vacuum hot pressed powder.
2015-01-07
Standard
AMS7910D
This specification covers beryllium in the form of bar, rod, tubing, and shapes fabricated from beryllium powder consolidated by cold isostatic pressing (CIP) and sintering.
2015-01-07
Standard
AMS7911D
This specification covers aluminum-beryllium powders consolidated by hot isostatic pressing (HIP) into the form of bar, rod, tubing, and shapes.
2015-01-07
Standard
AMS7902G
This specification covers beryllium in the form of sheet and plate produced by hot rolling beryllium.
2015-01-07
Standard
AMS6910B
This specification covers a titanium alloy in the form of bars up through 4.000 inches (101.60 mm) inclusive, in nominal diameter or least distance between parallel sides, forgings of thickness up through 4.000 inches (101.60 mm), inclusive, and stock for forging of any size.
2015-01-07
Standard
AMS6932B
This specification covers a titanium alloy in the form of bars up through 3.000 inches (76.20 mm) in nominal diameter or least distance between parallel sides, inclusive, forgings of thickness up through 3.000 inches (76.20 mm), inclusive, with bars and forgings having a maximum cross-sectional area of 16 square inches (103.23 cm 2 ), and stock for forging of any size.
2015-01-07
Standard
AMS2406N
This specification covers the requirements for electrodeposited hard chromium plate.
2015-01-07
Standard
AMS5667N
This specification covers a corrosion and heat-resistant nickel alloy in the form of bars, forgings, flash welded rings, and stock for forging, flash welded rings, or heading.
2015-01-07
Book
This is the electronic format of the Journal.
2015-01-05
Article
Treating molten metal with ultrasound is cleaner and more efficient than using argon rotary degassing to produce high-quality castings, according to scientists at Brunel University London. Cost reduction is another benefit, demonstrated in the research team's pilot-scale trials.
2015-01-05
Standard
AMS4159E
This specification covers an aluminum alloy in the form of extruded bars, rods, wire, profiles, and tubing with a nominal diameter or least thickness (wall thickness of tubing) up to 5.000 inches, inclusive.
2015-01-05
Standard
AMS4154R
This specification covers an aluminum alloy in the form of extruded bars, rods, wire, profiles, and tubing.
2015-01-05
Standard
AMS4479
This specification covers an aluminum alloy in the form of extruded profiles with a maximum cross-sectional area of 25 in2 (160.29 cm 2 ) and nominal thicknesses from 0.250 to 2.500 inch, inclusive (6.3 to 63.50 mm, inclusive).
2015-01-05
Standard
AMS4480
This specification covers an aluminum alloy in the form of seamless, drawn tubing.
2015-01-05
Standard
AMSC81769A
This specification covers the requirements for surface metal removal of ferrous and non-ferrous metals by milling processes using controlled immersion of parts in chemical etching solutions.
2015-01-05
Standard
AMS4153L
This specification covers an aluminum alloy in the form of extruded bars, rods, wire, profiles, and tubing up to 32 square inches (206 square cm) in area.
2015-01-05
Standard
AMS5878D
This specification covers a corrosion and heat-resistant nickel alloy in the form of sheet, strip, and plate 0.015 to 1.5 inch (0.38 to 38 mm) in nominal thickness. these products have been used typically for parts requiring oxidation resistance up to 2100 °F (1149 °C) and relatively high strength up to 1800 °F (982 °C), but usage is not limited to such applications.
2015-01-05
Standard
AMS4535D
This specification covers a copper beryllium alloy in the form of mechanical tubing. This tubing has been used typically for parts requiring a combination of high strength, wear resistance, and corrosion resistance and where thermal conductivity, electrical conductivity, and low magnetic susceptibility may be important, but usage is not limited to such applications. While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.
2015-01-01
Journal Article
2014-01-9101
Susan Sawyer-Beaulieu, Edwin K.L. Tam
Abstract Life-cycle assessments (LCAs) conducted, to date, of the end-of-life phase of vehicles rely significantly on assumed values and extrapolations within models. The end phase of vehicles, however, has become all the more important as a consequence of increasing regulatory requirements on materials recovery, tightening disposal restrictions, and the rapid introduction of new materials and electronics, all potentially impacting a vehicle's efficacy for achieving greater levels of sustainability. This article presents and discusses selected research results of a comprehensive gate-to-gate life-cycle-inventory (LCI) of end-of-life vehicle (ELV) dismantling and shredding processes, constructed through a comprehensive and detailed case study, and argues that managing and implementing creative dismantling practices can improve significantly the recovery of both reusable and recyclable materials from end-of-life vehicles.
2015-01-01
Journal Article
2014-01-9104
Salah A. Elmoselhy
The lean production system has been successful in the cost-based winning order criterion markets. However, the automotive market has been volatile and the new criterion of winning orders has been availability, which has called for an agile system. The present paper argues that because of fierce competition the current automotive market winning order criterion is now a blend of cost and availability. It shows how a hybrid lean-agile system can strategically meet such a challenging criterion. The study presents the drivers, attributes and providers in lean manufacturing, agile manufacturing, and hybrid lean-agile manufacturing systems. It investigates how the strategic facet of the proposed hybrid lean-agile manufacturing system addresses the six manufacturing competitive dimensions. It presents as well the hybrid lean-agile manufacturing key performance indicators.
Viewing 121 to 150 of 19881

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