Drilling and Associated Technologies Part 2 ppt

... 40,0% ( 12) 23 ,3% (7) 36,7% (11) 11 Interview ( interviewing for a job, etc) 23 ,3% (7) 16,7% (5) 60,0% (18) 12 Performing a dialogue 66,6% (20 ) 26 ,7% (8) 6,6% (2) 13 Playing games 40,0% ( 12) 46,7% ... the question orally 73,4% (22 ) 13,3% (4) 13,3% (4) 4 Expressing opinion orally 50,0% (15) 26 ,7% (8) 23 ,3% (7) 5 Seeking and giving information 40,0% ( 12) 36,7% (11) 23 ,3% (7...

Ngày tải lên: 21/01/2014, 22:20

... infrared [2] . Material Refractive index MgF 2 1.3 – 1.4 Al 2 O 3 1.8 – 1.9 Si 3 N 4 1.8 – 2. 05 SiO 2 1.45 – 1. 52 SiO 1.8 – 1.9 TiO 2 2. 3 ZnS 2. 3 – 2. 4 Ta 2 O 5 2. 1 – 2. 3 HfO 2 1.75 ... sin qi q     (22 ) Solar Cells – Silicon Wafer- Based Technologies 30 epitaxial solar cells. These cells have been built on impure (low c...

Ngày tải lên: 19/06/2014, 11:20

... heterojunctions on the basis CuInSe 2 . J. Appl. Phys. 73, 29 02- 2909. Solar Cells – Thin- Film Technologies 20 increasing Ga content in CuInxGa 1-x Se 2 (to ~ 2% at x = Ga/(Ga+In) = 0.5), and, ... experimental efficiencies of the best thin- film CdS/CdTe solar cells (16-17%). Solar Cells – Thin- Film Technologies 32 The enhancement of  from 16...

Ngày tải lên: 19/06/2014, 11:20

... M )=  1 2 σ 2  M /2 e  − (z n −E b,PS M ) 2 2σ 2  M ∏ i=1 i =n e  − z 2 i 2 2  . (19) 42 Novel Applications of the UWB Technologies Novel Applications of the UWB Technologies 28 50 () 123 4 () 22 kk gk CSI ... be defined as σ 2 ISI + σ 2 MAI + σ 2 N where σ 2 N is AWGN. The corresponding average probability of a correct decisio...

Ngày tải lên: 19/06/2014, 14:20

... mission (Mori et al, 20 10; Normile, 20 10; Sawada et al, 20 10). 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 1000 10000 100000 Sail Assembly Loading (g m -2 ) Sail Area (m 2 ) MeSR IHP JAtP SbSR SPO Kuiper ... and Control, Vol .2, No .2, Feb .20 04, pp. 38- 42 (in Chinese) Advances in Spacecraft Technologies 54 Garwin, R.L., Solar Sailing – A Pract...

Ngày tải lên: 20/06/2014, 00:20

... 20 07; Baba & Mori, 20 07; Baba, 20 08) and quantum optics (Yoshie et al., 20 04; Lodahl et al., 20 04; Englund et al., 20 05). Recent Optical and Photonic Technologies 28 Fleischer, J. W., ... Recent Optical and Photonic Technologies 30 Stefanou, N. & Modinos, A. (1998). “Impurity bands in photonic insulators,” Phys. Rev. B 57, 121 27- 121 33...

Ngày tải lên: 21/06/2014, 14:20

... diameter. 11 ‘Deep-hole drilling and ‘Gun -drilling operations are virtu- ally the same, with the term Deep-hole drilling being the pre- ferred term in this text.  Chapter  3 .1 Drilling ... typically ground twist drill points. Drilling and Associated Technologies  Figure 43. The principal technical drill performance criteria and factors associated with drilling...

Ngày tải lên: 05/08/2014, 20:22

... steel (construction) 33.8, Grey CI 23 .3, Malleable CI 20 .3, Bronze (medium hardness) 12. 2 – with HSS drills, ranging from φ10 to 60 mm. Drilling and Associated Technologies  workpiece (see ... relationship: A z = s z d /2 = sd/4 = h z b (mm 2 ). Hence, the total transverse cross-sectional area when drilling of the undeformed chip will be: A = 2A z = s z d = sd /2 =...

Ngày tải lên: 05/08/2014, 20:22

... successful drilling of long slender holes in the workpiece. Drilling and Associated Technologies  Figure 58. Deep-hole drilling operations, such as: (a) gundrilling, (b) double tube ejector drilling ... workpiece has been clamped and partially machined, it cannot be satisfactorily removed then reset without a loss of both accuracy and precision. Drilling and Asso...

Ngày tải lên: 05/08/2014, 20:22

... failure’. [Aer: Kalpakjian, 19 84] . Drilling and Associated Technologies  Figure 63. Twin-edged boring tooling. [Courtesy of Sandvik Coromant]. Drilling and Associated Technologies  ... nose radius and the inuence it has on the D OC . For Figure 62. Interchangeable cutting heads for machining internal features. [Courtesy of Sandvik Coromant]. Drilling and A...

Ngày tải lên: 05/08/2014, 20:22

... 0.6 0.8 1.3 2.2 3.2 4 .5 IT6 0.9 1.2 1.9 3.1 4.6 6.4 IT7 1.4 1.9 3.1 5. 0 7.4 10.1 IT8 2.0 2.9 4.7 7.8 11 .5 15. 8 IT9 3.6 7 .5 9.4 12.4 18.3 25. 2 IT10 5. 7 7.6 12.1 20.0 29.8 40 .5 IT11 8.6 11.8 19.1 ... 31.4 46.2 63.8 [Source: Sandvik Coromant (19 95) ] . Drilling and Associated Technologies  Figure 66. Hard -part boring, can create excessive boring bar deections and...

Ngày tải lên: 05/08/2014, 21:20

... I. and Alintas, Y. Mechanics of Boring Processes – Part I. Int. J. Mach. Tools and Manufact., 463 –4 76, Vol. 43, 2003. Atabey, F. Lazoglu, I. and Alintas, Y. Mechanics of Boring Processes – Part ... 393–399, Nov. 1992. Drilling and Associated Technologies  Table 6: Potential reaming problems and their possible causes, with some remedies Reaming problem: Possible...

Ngày tải lên: 05/08/2014, 21:20

Ngày tải lên: 05/08/2014, 21:20

... 0.33 0.19 0. 125 Z c : 0.38 Z 0.35 Z 0.33 Z 0.30 Z 0 .27 Z 0 .21 Z 0 .20 Z 0.14 Z 0.14 Z [Source: Isakov – Kennametal Inc./pub. in American Machinist, 1996] . Milling Cutters and Associated Technologies ... Hertel] . Milling Cutters and Associated Technologies  inserts around the cutter’s periphery (Z) and the en- gagement angle (α). An expression for these milling...

Ngày tải lên: 05/08/2014, 21:20

... Part 6: Milling eory. AB Sandvik Coromant Pub., 1980. Modern Metal Cutting – Part 7: Milling Tools. AB Sandvik Coromant Pub., 1980. Milling Cutters and Associated Technologies 179 ... Down [Plunge Milling] . Cutting Tool Eng’g., 44 47 , Oct. 2003. Richter, A. e Right Angle [‘Angled’ Milling Heads]. Cut- ting Tool Eng’g., 48 –53, July 20 04. Rowe, J. Right Face [F...

Ngày tải lên: 05/08/2014, 21:20