Kinematics and Mechanisms 2008 Part 5 pps

... Metal and Nonmetal on Metal Combinations Metal on Metal Condition Like Unlike* Nonmetal on Metal Clean (unlubricated) 150 0 ¢ 10 ¡6 15 to 50 0 ¢ 10 ¡6 1 :5 ¢ 10 ¡6 Poorly lubricated 300 3 to 100 1 .5 Average ... impact, and repeated impact leads to pitting and erosive wear. Caviation erosion arises when a solid and fluid are in relative motion and bubbles formed in the fluid b...

Ngày tải lên: 12/08/2014, 03:20

... Metal and Nonmetal on Metal Combinations Metal on Metal Condition Like Unlike* Nonmetal on Metal Clean (unlubricated) 150 0 ¢ 10 ¡6 15 to 50 0 ¢ 10 ¡6 1 :5 ¢ 10 ¡6 Poorly lubricated 300 3 to 100 1 .5 Average ... adhesive- and abrasive-wear mechanisms. Of the aforementioned wear mechanisms, one or more may be operating in one particular machinery. In many cases wear is initiated b...

Ngày tải lên: 11/08/2014, 10:22

... Factors Type m y (MPa) Soft elastometer 0 .5 0 Elastometer with fabric insertion 2 .5 20 Metal jacketed and filled 3 .5 55 Solid flat soft copper 4.8 90 24 .5 O-Ring Practice To seal properly, an O-ring ... 10 6 Carbon graphite/alumina 100 000 3 :5 ¢ 10 6 Carbon graphite/tungsten carbide 50 0 000 17 :5 ¢ 10 6 Carbon graphite/silicon carbide > 50 0 000 > 17 :5 ¢ 10 6 Friction...

Ngày tải lên: 11/08/2014, 10:22

Ngày tải lên: 11/08/2014, 10:22

... carbide tools and has been studied over many years, by Dawihl (1941), Trent (1 952 ), Trigger and Chao (1 956 ), Takeyama and Murata (1963), Gregory (19 65) , Cook (1973), Uehara (1976), Narutaki and Yamane ... and Inconel 718 0. 05 0.02 0.1 0.2 0 .5 1.0 2.0 5 10 20 40 60 80 99 85 Flank wear VB (mm) P10 Sintered steel P10 B1112 TiC-Al 2 O 3 ceramic Inconel 718 VB max B112 - P...

Ngày tải lên: 12/08/2014, 02:22

... industrialization in the latter part of the eighteenth century. Early developments in the petroleum industry started in Scotland, Canada, and the U.S. in the 1 850 s [Parish, 19 35; Dowson, 1979]. Though ... macrotribology and micro/nanotribology and their significance. We then describe mechanisms of friction, wear, and lubrication, followed by micro/nanotribology. 21.1 History o...

Ngày tải lên: 12/08/2014, 03:20

... (perpendicular) 0 .54 0.32 0.072(s) Leather on oak (parallel) 0.61 0 .52 Cast iron on oak 0.49 0.0 75( n) Leather on cast iron 0 .56 0.36(t) 0.13(n) Laminated plastic on steel 0. 35 0. 05( t) Fluted rubber ... 0. 85 0.21 Magnesium on cast iron 0. 25 Copper on cast iron 1. 05 0.29 Tin on cast iron 0.32 Lead on cast iron 0.43 Aluminum on aluminum 1. 05 1.4 Glass on glass 0.94 0.01(p) 0.40...

Ngày tải lên: 12/08/2014, 03:20

... Phys. Rev. Lett. 59 :1942 − 19 45. Parish, W. F. 19 35. Three thousand years of progress in the development of machinery and lubricants for the hand crafts. Mill and Factory. Vols. 16 and 17. Peachey, ... 288:248 − 250 . Layard, A. G. 1 853 . Discoveries in the Ruins of Nineveh and Babylon, I and II. John Murray, Albemarle Street, London. Mate, C. M., McClelland, G. M., Erlandsson...

Ngày tải lên: 12/08/2014, 03:20

... Elements 22.1 Threaded Fasteners 22.2 Clutches and Brakes Rim-Type Clutches and Brakes • Axial-Type Clutches and Brakes • Disk Clutches and Brakes • Cone Clutches and Brakes • Positive-Contact Clutches Gordon ... fibers to provide strength and ability to withstand high temperatures; various friction particles to obtain a degree of wear resistance and higher coefficient of fricti...

Ngày tải lên: 12/08/2014, 03:20

... Professor Joseph Edward Shigley who authored and coauthored several outstanding books on engineering design. The Standard Handbook of Machine Design and the Mechanical Engineering Design text (both ... Eng. 33(14): 56 57 . Blake, A. 1986. What Every Engineer Should Know about Threaded Fasteners: Materials and Design, p. 202. Marcel Dekker, New York. Blake, J. C. and Kurtz, H. J. 19 6...

Ngày tải lên: 12/08/2014, 03:20