Metal Machining Episode 6 pot

... control referred to under each of the six losses in Figures 5.7-5.12. However, in order to give an early indication a definition is as follows: 90 TPM- A Route to World- Class Performance ... the restoration of cquipment and development of asset care, thc next step brings together all of the practices developed for operating, 98 TPM- A Route to World...

Ngày tải lên: 12/08/2014, 08:22

... chemical reactions in the Brusselator is the following A k 1 −→X, (6. 65a) 2X + Y k 2 −→3X, (6. 65b) B + X k 3 −→Y + D, (6. 65c) X k 4 −→E, (6. 65d) the four steps are assumed to be irreversible which is ... solutions (6. 1.11) and (6. 1.12) in (6. 1.8) and (6. 1.9) leads to the following amplitude differential equations (D 2 − k 2 )(D 2 − k 2 − σ)W = Ra k 2 Θ, (6. 1.13) (D 2 − k 2 − σPr)Θ = −...

Ngày tải lên: 12/08/2014, 08:22

... 11 06 Industrial Brushless Servomotors 4.3 i 0 .63 2 V/R ,, , ,, , , , 9 o t O)m (0~ ~ , ,, , ~m Figure 4.7 (a) ... When the brushless motor is used for incremental motion, the motor rating may be affected by the relative values of the 108 Industrial Brushless Servomotors 4.3 cannot be used for the brushless ... 0.84 1.02 Max. continuous current Is A 5.4...

Ngày tải lên: 12/08/2014, 16:20

Ngày tải lên: 12/08/2014, 16:20

... 4-BrC 6 H 4 b 49 80:20 3 4-MeO(CO)C 6 H 4 c 70 79:21 44-F 3 CC 6 H 4 d 44 77:23 53-FC 6 H 4 e 52 78:22 63 -ClC 6 H 4 f 61 79:21 7 3-BrC 6 H 4 g 66 79:21 8 c 2-ClC 6 H 4 h 32 23:77 a General reaction ... 127:1 161 6–1 161 7 Yang JW, Hechavarria Fonseca MT, List B (2004) A Metal-Free Transfer Hy- drogenation: Organocatalytic conjugate reduction of α,β-unsaturated alde- hydes. A...

Ngày tải lên: 12/08/2014, 16:21

... prime variable. Secondary Controller Primary controller FIG 6. 1. Cascade control resolves the process into two parts, each within a closed loop. 1 56 1 Multiple-loop Systems The vector gain of ... constant gain for the primary loop. RATIO CONTROL SYSTEMS In a ratio control system, the true controlled variable is the ratio K of two measured variables X and Y: K=; (6. 3) Contr...

Ngày tải lên: 12/08/2014, 16:21

... 8 415 (19 90). 59. X. Zhao, Y L. Chang, F.W. Fowler, and J.W. Lauher, J. Am. Chem. Soc. 11 2: 66 27 (19 90). 60 . Y L. Chang, M A. West, F.W. Fowler, and J.W. Lauher, J. Am. Chem. Soc. 11 5: 59 91 (19 93). 61 . ... Chem. Soc. Chem. Commun. 14 01 (19 94). 86. S. Bhattacharya and S.N.G. Acharya, Chem. Mater. 11 : 312 1 (19 99). 87. S. Kobayashi, K. Hanabusa, M. Suzuki, M. K...

Ngày tải lên: 13/08/2014, 05:20

... HSM is said to be: ã High Cutting Speed (v c ) Machining ã High Spindle Speed (n) Machining ã High Feed (v f ) Machining ã High Speed and Feed Machining ã High Productive Machining Metalworking ... World High speed machining and conventional die and mould machining 2 Historical background The term High Speed Machining (HSM) commonly refers to end...

Ngày tải lên: 13/08/2014, 05:20

... Sandvik Coromant regarding die and mould machining, the focus will be shifted somewhat from the high speed machining trend to the more basic planning stage of the machining process. Which of course ... dependent on the spindle speed for a certain cutting speed. If using the nominal diameter value of the tool, when calculating cutting speed, the effective or true cutting speed...

Ngày tải lên: 13/08/2014, 05:20

... both continous tool paths and commands of feed and speed rates, it is possible to drive the mechanic functions of a machine tool to much higher speeds, accelerations and decelerations. This can ... permits very high table feeds. These cutters are suitable for machining interrupted cast-iron surfaces, roughing cast-iron and small depth of cut in steel. Also in materials where the cuttin...

Ngày tải lên: 13/08/2014, 05:20

... size in amor- phous Ni-Zr. Phys. Rev. B, 37(11) :65 3 3 -6 535, 1988. 26. R. Kirchheim. Interstitial diffusion in glass. Defect and Diffusion Forum, 9 5-9 8:115 9- 1 164 , 1993. 27. R. Kirchheim. ... M 0 - -1 2 -1 4 -1 6 -1 8 -2 0 -2 2 6 8 10 12 1041~ ( ~-1 ) Figure 9.3: Self-diffusivities of 0 and Ni on their respective sublatti...

Ngày tải lên: 13/08/2014, 05:20

... 2.0** 3.8 4. 2 620– 840 140 – 540 PcBN ≈100* 1.9–2.1 4. 7 4. 9 680–710 150– 340 K-carbide 75–120 3.0–3 .4 4.5–6.0 550–650 390–925 P-carbide 25–55 4. 0 4. 1 5.8–6.8 49 0–560 390– 840 Cermet 11–35 2 .4 2.7 6.7–7.8 ... 6.7–7.8 390 42 0 48 0– 740 Al 2 O 3 10–35 3.2–3.6 7.9–8.0 380–390 145 –330 Al 2 O 3 /TiC 10–22 3.8 4. 0 7.6–8.0 370–395 180–330 Al 2 O 3 /SiC(wh.) 10–35 ≈3 .4* 7.0–7.5 34...

Ngày tải lên: 13/08/2014, 09:20

... 1991), to give an insight into how machining may be changed by non-planar rake face and cutting edge modified tools. Figures 6. 6 and 6. 7 give examples. Figure 6. 6 is concerned with modifications ... equation (6. 9a) to the work-hardening behaviour of the material, expressed as s — = s 0 e — n (6. 10) and to the shear strain-rate on OA″, from equation (6. 6), in order to replace equat...

Ngày tải lên: 13/08/2014, 09:20

... (1970) The metallurgy of machining, Part 2. Metallurgia 81, 51–59. Yamaguchi, K. and Kato, T. (1980) Friction reduction actions of inclusions in metal cutting. Trans ASME J. Eng. Ind. 103 , 221–228. Yamane, ... (1998) Modeling the physics of metal cutting in high speed machining. Int. J. Machining Sci. and Tech. 2, 343–353. Shaw, M. C., Usui, E. and Smith, P. A. (1961) Free machinin...

Ngày tải lên: 13/08/2014, 09:20

... (1973) Metallurgy for Engineers, 4th edn. London: Edward Arnold. Usui, E. and Shirakashi, T. (1982) Mechanics of machining – from descriptive to predictive theory. ASME Publication PED 7, 13 35. Usui, ... 2160e –0.0013T + 29e –0.00 013( T–80) 2 + 7.5e –0.00014(T–300) 2 + 47e –0.0001(T–700) 2 M = 0.026 + 0.0000TN= 0.18e –0.0016T + 0.015e –0.00001(T–700) 2 a = 0.00009 m = 0.0055 References A...

Ngày tải lên: 13/08/2014, 09:20