Metal Machining Episode 12 ppt

... boundaries AB and CDE between a plastic region and a rigid region in a metal forming process. Because this is a book on metal machining, the example is of continuous chip formation, but any example ... studied for maintaining trouble-free machining. Nowadays, they are regarded as indispensable in the development of intelligent machining systems. However, machining systems have not y...

Ngày tải lên: 13/08/2014, 09:20

... 85–140 50–160 120 –200 220–320 ∆T 1 [°C] a 230–470 180–300 110–340 250–430 470–680 K work [W/m K] 25–45 100–400 100–300 15–20 6–15 K tool b [W/m K] 20–50 80 120 100–500 80 120 50 120 K* 0.5–2 0.2–1 ... characteristics on tool face in metal machining. J. JSPE 39, 966–972. Taylor, F. W. (1907) On the art of cutting metals. Trans. ASME 28, 31–350. Trent, E. M. (1991) Metal Cutting, 3rd ed...

Ngày tải lên: 13/08/2014, 09:20

... ceramic cutting tools. In: Metals Handbook, 10th edn, Vol. 5 (Surface Engineering). Metals Park, Ohio: ASM. Santhanam, A. T., Tierney, P. and Hunt, J. L. (1990) Cemented carbides. In: Metals Handbook 10th edn, ... for 30 min at 120 0˚C. A metallographic section through the interface between the carbide tool and the steel, etched in 4% Nital (nitric acid Tool damage and its classification 1...

Ngày tải lên: 13/08/2014, 09:20

... to come into thermal equi- librium. This differs from the conditions experienced in metal machining. There, metal is heated and passes through the deforming region in the order of milliseconds. ... formation Built-up edges occur at some cutting speed or other in machining most metal alloys containing more than one phase, as machining conditions change from low speed, at which no si...

Ngày tải lên: 13/08/2014, 09:20

... up-milling, centring and splitting. The machining scenario is used to control cutting force and machining error by pre -machining feed adjustment, and to diagnose machining states. Figure 9.37 (from ... 1996). 312 Process selection, improvement and control Childs Part 3 31:3:2000 10:40 am Page 312 In SAM’s system, over 100 functions of element applicability to input variables are de...

Ngày tải lên: 13/08/2014, 09:20

... 373 0 467.70 1089 42 859.50 123 7 231 153.70 126 8 910 244.90 128 4 1180 273.10 129 0 124 8 277.30 129 1 126 0 277.10 129 6 125 8 271.90 128 4 125 1 PV 0.0000 0.0000 0.001 8 0.0369 0.1 ... 1340 .12 392.17 1441.19 1356.97 397.13 1466.46 1358.02 384.37 1419.97 1354.32 377.75 1424.07 1320.23 IF1 Found Mean Max Min 0.00 0 0 4.70 35 0 110.30 373 0 467.70...

Ngày tải lên: 12/08/2014, 07:22

... 35 reduction, 156 refinement, see preorder region graph, 332 relabelling, 40 in LOTOS BES semantics, 121 LTS semantics, 82 trace semantics, 71 in tLOTOS TBES semantics, 310 TTS semantics, 293 reset ... object-oriented concepts, 166–167 and viewpoint consistency, 177–180 sequential strong bisimulation, 127 specification, 190 LTL (Linear Temporal Logic), 382 LTS seeLabelled Transition Systems...

Ngày tải lên: 12/08/2014, 07:22

... 94.8 H–O–O–H 120 .7 120 .7 127 .1 120 .7 120 .0 HCN C–N 1.169 1.169 1.169 1.169 1.153 C–H 1.078 1.078 1.078 1.078 1.065 HCO C–O 1.196 1.196 1.196 1.196 1.117 C–H 1.141 1.141 1.142 1.141 1.110 H–C–O 122 .9 122 .9 ... error 46.947.047.047.1 Change 0.1(0.3%) B-LYP/6-31G ∗ /Ahlrichs Mean error 12. 312. 412. 312. 4 Mean absolute error 12. 913. 012. 912. 9 Change −0.1(−0.7%) S-VWN/STO-3G/A...

Ngày tải lên: 12/08/2014, 08:21

... rotation at 12 o’clock would have the face rotation at 1800. Ferrous: Refers to a metal that contains primarily iron, such as steel, stainless steel and cast iron. Filler Metal: The metal added ... Discontinuity: Any change in a metal s typical structure. It is the lack of consistence in mechanical, metallurgical or physical characteristics. Discontinuities are found in all metals an...

Ngày tải lên: 12/08/2014, 08:21

... v TM 5-685/NAVFAC INDEX MO- 912 . Air intake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–9 Alternator ... . . . . . , . . . . . 5–9h(2)(d) Glass-enclosed fuse . . . . . . . . . . . . . . . . 5–9M2)(c) Metal- enclosed fuse . . . . . . . . . . . . . . . . 5–9h(2)(b) Gas turbine . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . 2–8g System grounding. . ....

Ngày tải lên: 12/08/2014, 16:21