Cutting speed, feed rate, depth of cut, step-over and tool diameter have been considered as the process parameters. To estimate the GEMG, 46 experiments have been performed based on response surface analysis. Therefore, in the present work, the optimal process parameters have been achieved for the minimization of work piece temperature by maintaining the production rate and surface quality using a novel approach of a combination of grey entropy model grade (GEMG) and genetic algorithm (GA) during 2.5 D milling of Inconel 625. For maintaining the accuracy of the thin wall, it is necessary to optimize the work piece temperature (WT) with other responses like material removal rate (MRR) and surface roughness (SR). The chances of deflection in these thin walls becomes very high during modern high-speed machining and hence the thin walls get deflected due to thermal expansion and results in the cause of dimensional inaccuracy. 3.In the development of complex dies and moulds, most of the time there are possibilities of developing thin walls during milling operation.1.7 Final Steel Shelf Installed in Frame.1.6 Final Steel Shelf Fabrication Process.1.3 Paper Mock Up Shelf Fabrication Process.2.4 Molding and Casting Continued: notes for next time.1.4 Panel Infill Iteration and Fabrication.stepdown on the rough passes are large enough (can range from the diameter of your endmill to double the diameter for foam) because the rough pass is mostly there to remove material, setting the stepdown and stepover too fine just adds unnecessary milling time.Īlso, making sure the origin is located at the right place and the planes are set correctly for flipping and cutting the underside of the block are extremely important to remember! Some of the more basic things to keep in mind are: having stock to leave on rough passes so that the first pass does leave enough material to cut for the finishing passes, making sure the max. There are LOTS of parameters to adjust in mastercam: feed rate, plunge rate, retract rate, tolerance levels, depth cuts for contours, etc. I started with a parallel rough, then did a radial finish from the center point of the surface and finished with my contour pattern: I started with one radial roughing from the midpoint of one edge, and then two radial finishes from two corners (The blue indicates the toolpath and the yellow indicates the tool’s entry position:
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