54lry1s2 25lry 2s2 ltz 2s2 354rx 2s2 354ry1s2 0

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Unformatted text preview: link only have to respect the non-penetration condition between workpiece and part-holder. Simulation of the Manufacturing Process 185 All of these data, set-up by set-up, are compiled in a table describing the Model of Manufactured Part (MMP). 4. CASE STUDY Figure 4; Plane-plane-plane over-constrained positioning [Anselmetti et al., 2003] 4.1. Over-constrained positioning We apply our method on a first example that was proposed by [Anselmetti et al., 2003] (Figure 4). In set-up 1, the three positioning surfaces of the set-up 2 are machined on the workpiece. For a better readability, it is assumed that the first set-up gives a perfect workpiece. In set-up 2, the primary positioning connection is between part-holder plane 1S2 and workpiece plane 1, the secondary one between 2S2 and 2 and the tertiary one between 3S2 and 3. Each positioning surface of the part-holder is deviated: ⎧rx1S2 ⎪ TS2,H1S2 = ⎨ ry1S2 ⎪0 ⎩ ⎧ lrx1S2 ⎪ TH1S2,P1 = ⎨ lry1S2 ⎪ Ulrz1S2 ⎩ 0⎫ ⎪ 0⎬...
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This note was uploaded on 08/03/2010 for the course DD 1234 taught by Professor Zczxc during the Spring '10 term at Magnolia Bible.

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