MasterCAM driven system based card reader preset mold

Design Top surface contour and two lateral contour lines on the half-shell molds using solid modeling in curved contour lines are drawn, to modify it. Approach is to modify the lateral contour lines Xform-Mirror (Mirror) treatment, first select Creat-Surface-Draft (traction), making traction surface contour 1, select Top surface view orientation, the same will be pulling out of the lateral contour intersect the surface; then select Creat-Surface-Fillet (rounded) of two intersecting surfaces with rounded (R = 3). Then hdpe couplers mould  make buttons around the annular bulge, other surface layer can be first masked in order to observe the annular contours pulling up to the surface, and then the corresponding lateral contour of the surface traction with pruning operation. This operation where the work will be shielding layer, select the layer in front of the steps of the work visible, choose Creat-Curve-Project in the main menu (build curves projection), select the ring contour curves, surfaces, objects to the previous step Top surface In the pop-up menu, select Trim entry for Y, choose a good outline of the outside of the reserved area, which will be trimmed a corresponding annular surface area on the surface, as a pre-generated tool path when preparing, empathy can be constructed other surfaces. Finally, the lateral surface contour 3 generated in the previous step to trim surround surface, then trimmed in the middle of the surface profile, thus completing the internal structure of production. Analog  Plastic Ball Valve mould processing mold surface in order to reduce the amount of machining precision machining processing time can be attached to the top surface of a core surface, using parallel processing, tool radius of 10mm ball mill, select additional surface and core peripheral surface for the processing surface, set in Stocktoleaveondrive option to retain 0.3mm, set in StepoverControl (transverse cutting the amount of control) dialog distance of 5mm, Machiningangle processing is set to 45 ° angle to the surface allowance. Set parameters Cuttolerance cutting tolerance options for 0.03mm, cutting method Zigzag bi-cutting, the result is as shown below. Analog processing map and then select the parallel surface roughing method for semi-finishing of all surfaces, use the tool radius of 4mm ball end mill, retention allowance 0.1mm, lateral cutting control the amount of 1.5mm, processing angle is 45 °, still Zigzag cutting when the cutting method, the result as (a). Finally, select Toolthpath-Surface-Finish-Scallop (wraparound), select all the objects surface machining, tool selection radius of 4mm ball end mill, allowance is zero, the transverse cutting control the amount of 1mm, cutting tolerance of 0.008mm, finally The results obtained as processing (b). According to the simulation results of processing, comparing mold design requirements do not meet the requirements of the Department, modify or adjust accordingly when the knife analog processing, processing steps, such as cutting the amount, if necessary, to modify the design of the mold surface adjustment. After several changes, you can send CNC machining, mold satisfactory conclusion through computer simulation and processing, increasing the certainty of a successful machining, processing and simulation ideas proved this method is feasible.