Introduction a machining fixture controls the

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Unformatted text preview: rigonometric equations: x i = O p P ⋅ x p = V ( t, x m , k ) ⋅ x p with: x m ∈ [ rmin , rmax ] , t ∈ [ t min , t max ] , k = 1 n y i = O p P ⋅ y p = V ( t, x m , k ) ⋅ y p This system has been solved analytically by using a resolution method by intervals. For each z-axis i the solutions Sj(t, k, xM) provide new possible values h ij = V (t, x m , k ) ⋅ z p . They are all compared to the current one and if a deeper depth is found and the difference h i - h ij is larger than the minimum cutting chip thickness, the variable h i is updated. Finely, the simulated surface is obtained by repeating this operation for each z-axis and for all the trajectories of the machining process (figure 6). The resulting simulated signature left on the surface, by the machining process, corresponds simply to the repartition of the points of the calculated surface around the ideal feature. Figure 6; Simulation principle 4. MODEL VALIDATION In order to test the suggested model, it has been confronted with a real sample. Figure 7...
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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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