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MACHINERY'S HANDBOOK 27th ED Part 7

Tham khảo tài liệu 'machinery's handbook 27th ed part 7', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Machinery s Handbook 27th Edition 997 JIG BORING Table 13. Continued Hole Coordinate Dimension Factors for Jig Boring Type B Hole Circles English or Metric Units The diagram shows a type B circle for a 5-hole circle. Coordinates x y are given in the table for hole circles of from 3 to 28 holes. Dimensions are for holes numbered in a counterclockwise direction as shown . Dimensions given are based upon a hole circle of unit diameter. For a hole circle of say 3-inch or 3-centimeter diameter multiply table values by 3. 17 Holes 18 Holes 19 Holes 20 Holes 21 Holes 22 Holes 23 Holes x1 0.40813 yi 0.00851 x2 0.23678 y2 0.07489 x3 0.10099 y3 0.19868 x4 0.01909 y4 0.36317 x5 0.00213 y5 0.54613 x6 0.05242 y6 0.72287 x7 0.16315 y7 0.86950 x8 0.31938 y8 0.96624 x9 0.50000 y9 1.00000 x10 0.68062 y10 0.96624 x11 0.83685 y11 0.86950 x12 0.94758 y12 0.72287 x13 0.99787 y13 0.54613 x14 0.98091 y14 0.36317 x15 0.89901 y15 0.19868 x16 0.76322 y16 0.07489 x17 0.59187 y17 0.00851 24 Holes x1 0.41318 y1 0.00760 x2 0.25000 y2 0.06699 x3 0.11698 y3 0.17861 x4 0.03015 y4 0.32899 x5 0.00000 y5 0.50000 x6 0.03015 y6 0.67101 x7 0.11698 y7 0.82139 x8 0.25000 y8 0.93301 x9 0.41318 y9 0.99240 x10 0.58682 y10 0.99240 x11 0.75000 y11 0.93301 x12 0.88302 y12 0.82139 x13 0.96985 y13 0.67101 x14 1.00000 y14 0.50000 x15 0.96985 y15 0.32899 x16 0.88302 y16 0.17861 x17 0.75000 y17 0.06699 x18 0.58682 y18 0.00760 25 Holes x1 0.41770 y1 0.00682 x2 0.26203 y2 0.06026 x3 0.13214 y3 0.16136 x4 0.04211 y4 0.29915 x5 0.00171 y5 0.45871 x6 0.01530 y6 0.62274 x7 0.08142 y7 0.77347 x8 0.19289 y8 0.89457 x9 0.33765 y9 0.97291 x10 0.50000 y10 1.00000 x11 0.66235 y11 0.97291 x12 0.80711 y12 0.89457 x13 0.91858 y13 0.77347 x14 0.98470 y14 0.62274 x15 0.99829 y15 0.45871 x16 0.95789 y16 0.29915 x17 0.86786 y17 0.16136 x18 0.73797 y18 0.06026 x19 0.58230 y19 0.00682 26 Holes x1 0.42178 y1 0.00616 x2 0.27300 y2 0.05450 x3 0.14645 y3 0.14645 x4 0.05450 y4 0.27300 x5 0.00616 y5 0.42178 x6 0.00616 y6 0.57822 x7 0.05450 y7