Metal Machining Episode 7 ppsx

... controls that are often used for text fields, for labeling boxes, and for drawing frames and rectangles. Although static controls are frequently limited to labeling and simple drawing operations, ... structure 2 * cxChar, // x for start cyChar, // y for start cxClient -(2 * cxChar), // x for end cyClient); // y for end // Display multi-line text string 532 Chapter 21 hand...

Ngày tải lên: 12/08/2014, 07:22

... case where F :/: 0 gives rzx - ff v/1 + A2 Industrial Brushless Servomotors 4.4 116 The roots of the quadratic are S "- - 2-'~e -+ 77 .2 TeT M When rM > 4re, there is no sinusoidal ... possible: 1. No reducer and a drive pulley radius of _ ~/0.00022 r~ V i~ -0.015m 128 Industrial Brushless Servomotors 4.5 shape is equally distributed. The trapezoidal...

Ngày tải lên: 12/08/2014, 16:20

... its control systems ought never to interfere with this aspiration. Multivariable Process Control I 1 97 FIG 7. 7. The effect of m2 on cl de- pends on the ratio of their periods. Equation (7. 20) ... expanded in Chap. 7, Multivariable Process Control. But the deepest penetration into the 194 1 Multiple-loop Systems component blending system be as follows: am -I- bm (...

Ngày tải lên: 12/08/2014, 16:21

... 70 30 A 970 30 70 31 A 970 31 70 39 A 970 39 70 46 A 970 46 70 49 A 970 49 70 50 A 970 50 70 51 A 970 51 70 55 A 970 55 70 60 A 970 60 70 64 A 970 64 70 70 A 970 70 70 72 A 970 72 70 75 A 970 75 Lithium. ... 676 3 A9 676 3 6863 A96863 6951 A96951 70 01 A 970 01 70 03 A 970 03 70 04 A 970 04 70 05 A 970 05 70 08 A 970 08 70 09 A 970 09 70 10 A 970...

Ngày tải lên: 13/08/2014, 05:20

... 5 07 1.09 0.96 CTE 4.42 2.89 528 1.59 071 4.52 3 .77 1.19 3 12 5.28 R 13.16 10.01 13 16 998 11.85 14 .71 15 10 10.18 11.56 896 1 377 10.10 11 76 density 1.51 1. 57 1. 57 148 138 1. 57 ... wt% 1OO:O EXT:HEXT450 70 .3 61.5 75 :25 EXT:HEXT450 61 .7 57. 7 25 :75 EXTHEXT450 47. 2 40.4 0:lOO EXT:HEXT450 52.3 34.0 Table 20 reports the yield of calcined cokes for sever...

Ngày tải lên: 13/08/2014, 08:21

... a/ (1 970 ) A r ' Youdelis and Yang (1 9 82) 0 Delamore et a/ (1 971 ) I I II I 1'04 10-3 io-* io-' 1 Ti concentration (wt per cent) Figure 5. 37 Increase ... formed as seen in Figure 5 . 27 . If allowed to form in this way, the cavity opened up on rolling classic case was that of the rimming steel ingot seen in Figure 5 . 27 . During the e...

Ngày tải lên: 13/08/2014, 08:21

... 20 30 40 50 60 80 100 s 4. 9 7. 6 11.1 15 .4 20 .4 26 .4 40.6 58.0 s 3 t 0.19 0.23 0. 27 0.31 0.35 0.39 0 . 47 0.55 240 ENGINEERING MATHEMATICS Stress s N/cm 2 8 .46 8. 04 7. 78 Temperature t ° C 70 200 ... 1.25 0 5 C9x 9 4. 5 0 9 C7.2 7. 2 7. 2 7. 2 7. 2 y D5x 2 C 9x C 7. 2 6.8 1 .45 7. 2 11.2 x 22.53 5x 2 20 31.25 45 C9x 18 22.5 27 C7.2 7. 2 7. 2 7. 2 y D...

Ngày tải lên: 13/08/2014, 08:21

... 500–700 ρ C [MJ/m 3 ] ≈ 3. 5 ≈ 3. 5 ≈ 2.5 ≈ 4.0 ≈ 2.2 k/ ρ C 110–220 85–140 50–160 120–200 220 32 0 ∆T 1 [°C] a 230 –470 180 30 0 110 34 0 250– 430 470–680 K work [W/m K] 25–45 100–400 100 30 0 15–20 6–15 K tool b [W/m ... E. (19 73) Friction 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 3...

Ngày tải lên: 13/08/2014, 09:20

... 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

... 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 - P10, V = 200m/min, d = 0.5mm, f = 0.1mm/rev Sintered ... chamfers for a length T between 0.5f and 0.75f for turning operations and 1.2f to 1.5f for milling; with a c from 15 to 30˚ depending on the severity of the machini...

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

... al., 1 978 ; Usui and Hirota, 1 978 ; Arsecularatne et al., 1995). This section introduces the further Non-orthogonal (three-dimensional) machining 177 Childs Part 2 28:3:2000 3:12 pm Page 177 where ... single-point cutting tools. Trans. ASME 76 , 199–204. Dewhurst, P. (1 978 ) On the non-uniqueness of the machining process. Proc. Roy. Soc. Lond. A360, 5 87 610. Dewhurst, P. (1 979 )...

Ngày tải lên: 13/08/2014, 09:20

... conditions as Figure 7.14 Childs Part 2 28: 3:2000 3:15 pm Page 217 2 28 Applications of finite element analysis Fig. 8. 1 continued Childs Part 2 28: 3:2000 3:16 pm Page 2 28 generate the nucleus of a BUE. ... methods were being developed for metal machining, linear fracture mechanics methods were being developed for the machining of brittle ceramics (Ueda and Sugita, 1 983 ). The 1...

Ngày tải lên: 13/08/2014, 09:20

... (2.24d) V=100 m/min V=200 m/min m à n* m à n* Steel P 1.0 2.31 3. 89 1.0 2.48 3.22 Steel X 0 .99 1.25 3.05 0 .96 1.43 2.06 Steel Y 0 .97 0.76 5 .98 0 .99 1.04 3.04 Steel L 0.74 0.38 8.78 0.88 0.72 4.21 Childs ... Luttervelt, 199 3). Section 8.4.1 describes a two-dimensional (orthogonal) finite element simulation of chip breaking when machining with grooved rake face tools (Shinozuka et al....

Ngày tải lên: 13/08/2014, 09:20

... mm 2 [ α n c fd] = 1 mm 2 [ α n c fd] = 0.5 mm 2 V vol [mm 3 ] 960 29 5000 29 5000 f mach 0.65 0.65 0.65 n c fd [mm 2 ]2 4 2 C [m/min] 180 150 180 n 0 .25 0 .25 0 .25 t ct [min] 5 5 5 t load [min] 2 ... 0 .25 0 .25 t ct [min] 5 5 5 t load [min] 2 2 2 M m [£/min] 0.0 92 0.0 92 0.0 92 M w [£/min] 0 .27 0 .27 0 .27 C t [£] 15 15 15 Fig. 1 .28 Times and costs to remove...

Ngày tải lên: 13/08/2014, 09:20