ComputerAided_Design_Engineering_amp_Manufactur.pdf

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TABLE 4.2 A Typical DMIS Format for Turbine Blade Measurement DMISMN/�s111250.dmh� V(1) � VFORM/ALL DISPLAY/TERM,V(1),PRINT,V(1),STOR,DMIS,V(1) FILNAM/�c0� UNITS/MM,ANGDEC PRCOMP/OFF SNSET/APPRCH,2.000000 SNSET/RETRCT,3.000000 SNSET/SEARCH,1.000000 FEDRAT/MESVEL,MPM,0.100000 FEDRAT/POSVEL,MPM,0.500000 FINPOS/ON F(0) � FEAT/GSURF MEAS/GSURF,F(0),68 GOTO/�3.914192,�299.915039,381.086334 SNSLCT/S(3) GOTO/46.363110,�223.356903,296.360962 PTMEAS/CART,49.0078,�220.3745,296.0281,0.6612,0.7456,�0.0832 PTMEAS/CART,49.0859,�220.4437,296.0279,0.6613,0.7455,�0.0830 PTMEAS/CART,49.2420,�220.5823,296.0275,0.6614,0.7455,�0.0825 PTMEAS/CART,49.6338,�220.9296,296.0265,0.6603,0.7466,�0.0812 PTMEAS/CART,50.4225,�221.6233,296.0242,0.6555,0.7511,�0.0784 PTMEAS/CART,51.2175,�222.3112,296.0216,0.6490,0.7571,�0.0754 PTMEAS/CART,52.0172,�222.9911,296.0188,0.6429,0.7626,�0.0721 PTMEAS/CART,53.6289,�224.3298,296.0132,0.6317,0.7725,�0.0654 PTMEAS/CART,55.2584,�225.6423,296.0072,0.6200,0.7824,�0.0584 PTMEAS/CART,56.9065,�226.9278,296.0009,0.6079,0.7924,�0.0509 PTMEAS/CART,58.5716,�228.1857,295.9941,0.5964,0.8015,�0.0431 PTMEAS/CART,68.9035,�235.2125,295.9449,0.5278,0.8493,0.0140 PTMEAS/CART,72.4716,�237.3643,295.9250,0.5053,0.8622,0.0368 PTMEAS/CART,76.0937,�239.4295,295.9036,04847,0.8725,0.0612 ……… ……… PTMEAS/CART,77.9260,�240.4320,295.8924,0.4732,0.8778,0.0739 PTMEAS/CART,78.3022,�240.6339,295.8901,0.4708,0.8789,0.0766 PTMEAS/CART,78.6787,�240.8349,295.8878,0.4688,0.8797,0.0792 PTMEAS/CART,79.0515,�241.0328,295.8854,0.4670,0.8805,0.0819 PTMEAS/CART,79.4166,�241.2259,295.8832,0.4654,0.8810,0.0845 PTMEAS/CART,50.4142,�218.5189,295.8688,�0.5410,�0.8375,0.0766 PTMEAS/CART,50.2405,�218.4068,295.8677,�0.5410,�0.8375,0.0775 PTMEAS/CART,49.7022,�218.2227,295.9388,�0.0751,�0.9972,0.0063 PTMEAS/CART,49.1415,�218.3221,295.9846,0.4104,�0.9110,�0.0396 PTMEAS/CART,48.6978,�218.6780,296.0216,0.7942,�0.6027,�0.0766 GOTO/41.549633,�213.253281,296.711426 GOTO/�3.914192,�159.915024,381.086334 SNSLCT/S(3) GOTO/�3.914192,�299.915024,381.086334 GOTO/42.843388,�226.820557,296.575195 PTMEAS/CART,48.47813,�219.201523,296.039856,0.984173,�0.149599,�0.094996 PTMEAS/CART,48.533371,�219.766235,296.034912,0.93643,0.339085,�0.090116 PTMEAS/CART,48.850739,�220.237427,296.005402,0.661991,0.747058,�0.060607 GOTO/42.892818,�226.960953,296.550873 GOTO/�3.914192,�299.915024,381.086334 ENDMES OUTPUT/F(0) ENDFIL
FIGURE 4.8(a) Profile tolerance of surface defined by ISO. FIGURE 4.8(b) Deviation of sculptured surface. Assume that Pi is the measured data which correspond to the point Qi � Ri, on the offset surface, and there exists a transformation matrix T between the coordinates of the measured data (CMM coordinates) and the CAD coordinates, satisfying Pi � T(Qi � Ri). Thus Pi can be converted to the CAD coordinate data by T and the Euclidean distance between Pi and (Qi � Ri) forms the deviation. Therefore, the Euclidean distance between the two points can be calculated as 1 � Pi , Euclidean distance |T 1 � � Pi � Qi � Ri ( )| (4.27) In a practical measurement case, the CMM measured data, P i, is obtained from the machine reading display and the corresponding point, (Q i � R i), on the offset surface is found as the minimum distance point from the measured data. The subdivision technique can be used for finding the corresponding point, (Q i � R i), as follows: 1. Divide the surface into 16 subsections at 1/4, 1/2, 3/4 and 1 location in terms of (u,v) parameters defining the surface.
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COMPUTER-AIDED DESIGN, ENGINEERING,
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Library of Congress Cataloging-in-P
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Editor Cornelius T. Leondes, B.S.,
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Chapter 1 Chapter 2 Chapter 3 Chapt
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the implementation of the IPD syste
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In our IPD system implementations,
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2. Specification of analysis-specif
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FIGURE 1.2 base or the design insta
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FIGURE 1.4 System architecture of t
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of a beam is considered for FEA. Th
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FIGURE 1.7 through the control expe
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2. machining facility (e.g., gang m
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from the FBDS. The user also specif
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Depending on the type of feature to
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TABLE 1.6 Tolerance synthesis is de
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FIGURE 1.12 Display of the NC tool
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component geometric entities and va
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FIGURE 1.14 The system architecture
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TABLE 1.10 User Input for the Toler
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TABLE 1.11 Tolerance Specifications
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7. Z. Young and I. R. Groose. A rul
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FIGURE 2.1 Tool paths generated for
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FIGURE 2.2 sented by instances of f
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TABLE 2.1 A CAD-Generated Hole Conf
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FIGURE 2.6 mounted on the rotary ta
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FIGURE 2.8 fixture for the machinin
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FIGURE 2.10 or best-fit, or the cur
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FIGURE 2.11 Linear approximation of
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FIGURE 2.13 Circular approximation
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FIGURE 2.14(b) Circular approximati
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FIGURE 2.16 Types of biarcs. FIGURE
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FIGURE 2.18 Approximation of scanne
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FIGURE 2.20 A touch trigger probe c
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TABLE 2.4 Substitute Elements in CM
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FIGURE 2.21 CMM planning requiremen
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Product Model Representation for Co
Page 73 and 74: © 2001 by CRC Press LLC TABLE 2.5
Page 75 and 76: TABLE 2.7 Partial Listing of Dimens
Page 77 and 78: 24. Makinouchi, S., Okamoto, M., an
Page 79 and 80: Bijan Shirinzadeh Monash University
Page 81 and 82: FIGURE 3.1 Trends in flexible manuf
Page 83 and 84: FIGURE 3.3 and constrain different
Page 85 and 86: Other Fixturing Techniques There ar
Page 87 and 88: FIGURE 3.6 contact point. The geome
Page 89 and 90: FIGURE 3.8 The vertical support fix
Page 91 and 92: and moments about the contact point
Page 93 and 94: een identified, the normals are use
Page 95 and 96: one of choosing the variables: such
Page 97 and 98: Fixture Module Location An importan
Page 99 and 100: FIGURE 3.15 Illustration of functio
Page 101 and 102: FIGURE 3.18 Minimum separation test
Page 103 and 104: direction) the face, respectively.
Page 105 and 106: FIGURE 3.21 Software structure for
Page 107 and 108: 3.8 Conclusion A reconfigurable fix
Page 109 and 110: Heui Jae Pahk Seoul National Univer
Page 111 and 112: FIGURE 4.1(b) Conceptual framework
Page 113 and 114: 4.3 Measurement Points Sampling and
Page 115 and 116: Surface S2 Measurement Path FIGURE
Page 117 and 118: FIGURE 4.4 Rough phase alignment ba
Page 119 and 120: deviation between the nominal CAD d
Page 121 and 122: FIGURE 4.6(a) Sum of squares distan
Page 123: FIGURE 4.7(c) Trailing edge. (c) th
Page 127 and 128: The calculated minimum form error i
Page 129 and 130: FIGURE 4.11(a) A typical mold havin
Page 131 and 132: FIGURE 4.11(d) Inspection results f
Page 133 and 134: FIGURE 4.12(c) Maximum deviation (p
Page 135 and 136: 5.1 Introduction Developments in th
Page 137 and 138: process plan for a part (Figure 5.3
Page 139 and 140: FIGURE 5.5 leading to the developme
Page 141 and 142: the previously stored process plan
Page 143 and 144: FIGURE 5.7 Techniques of defining a
Page 145 and 146: Feature Recognition and Extraction
Page 147 and 148: in relation to another feature (e.g
Page 149 and 150: FIGURE 5.9 Framework for building a
Page 151 and 152: FIGURE 5.10 Process plan content.
Page 153 and 154: FIGURE 5.12 Schematic sketch of the
Page 155 and 156: Several techniques of defining a fe
Page 157 and 158: TABLE 5.1 Data Structure for Repres
Page 159 and 160: FIGURE 5.16 Classification of the t
Page 161 and 162: system to ensure that the part bein
Page 163 and 164: FIGURE 5.19 Graphical model of the
Page 165 and 166: TABLE 5.4 Data Structure for Repres
Page 167 and 168: FIGURE 5.20 Mapping between machini
Page 169 and 170: algorithms. (Some details of the pr
Page 171 and 172: FIGURE 5.24 An example rotational p
Page 173 and 174: FIGURE 5.26 Down_face-turn-up_face
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FIGURE 5.27 Procedure for machine t
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FIGURE 5.28 Determining the number
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DL is needed to be set only if the
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FIGURE 5.31 Operation sequencing co
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Cutting Tool Selection Selection of
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1. A tool is searched for in the da
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FIGURE 5.32 Inputs to optimization
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When these values are substituted,
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Usually, maximum and minimum speed
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FIGURE 5.33 Solution methodology.
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TABLE 5.6 Process Plan Internal Rep
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In a strict theoretical perspective
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18. Domazet, D. S. and Lu, S. C. Y,
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63. Prasad, A. V. S. R. K., Rao, P.
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CAD systems. The sample consists of
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learn to master the new system. An
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Although researchers appear to agre
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Link and Zmud28 found that organic
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Informal Training Informal CAD trai
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informal training programs, felt th
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6. C. A. Beatty, Tall Tales and Rea
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A.Y.C. Nee National University of S
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FIGURE 7.1 Planning, design, and ma
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A metal stamping can have the follo
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FIGURE 7.3 Strips used to notch out
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A Skeletal Approach for the Recogni
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These findings can be used to devel
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Semi-Direct Piloting In cases where
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a larger value, the die operations
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FIGURE 7.9 Symbolic relationship be
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FIGURE 7.11 The shape of the envelo
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TABLE 7.1 Schema for the Generation
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strong reasons to support a move to
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FIGURE 7.16 3-D CAD model of a part
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References Cheok, B.T. et al. (1994
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include the once forbidden generati
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A temporal matrix (T-Matrix) is pro
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FIGURE 8.1 A basic process. (From R
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FIGURE 8.4(a) Generate a new IG usi
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Note if the pair of nodes are both
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TABLE 8.1 Summary of the Rules Cond
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The correctness of these rules is e
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needs to show that after each full
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ule is violated, a warning should b
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Π1 Π3 Π4 FIGURE 8.8(a) After add
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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A ik � ‘U’ and is in a cycle
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FIGURE 8.12(a) Add [p2 t7 p7 t8 p4]
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FIGURE 8.12(c) Add a token to p8 vi
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FIGURE 8.12(e) Add [p8 t9 p14 t10 p
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FIGURE 8.13 An example of rule TT.0
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FIGURE 8.14 A GPN model of a machin
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FIGURE 8.15(b) The first exclusive
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FIGURE 8.15(d) The last exclusive T
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FIGURE 8.15(f) After entering the a
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FIGURE 8.15(h) Completion of Compon
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FIGURE 8.15(j) Two PP-generations:
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FIGURE 8.15(l) The last exclusive T
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t1 t5 p1 p5 t6 (a) t2 t3 t4 2 2 p2
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FIGURE 8.17 An example of partial f
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Theorem 10: If pi → pk in a synth
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Note that control transitions are o
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t j than the lower at , it indicate
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• Programming logic and VLSI arra
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7. Chao, D. Y. and D. T. Wang, Appl
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53. Villaroel, J. L., J. Martinez,
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q u : the numerator of the least ra
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geometric modeling, engineering ana
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In dimension driven or parametric d
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FIGURE 9.3 configuration of bodies
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FIGURE 9.6 FIGURE 9.7 Geometric Int
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FIGURE 9.8 Intersection of degrees
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will introduce a way to propagate p
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Completeness of Dimensions Complete
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FIGURE 9.12 3-D constraints. © 200
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The distance constraint from pt �
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therefore: Now merge the lists and
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Quantity analysis methods have the
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y a revolute joint. By selecting al
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