With the development of CAD/CAM software, in our mold industry, their Advantages are getting more and more highlighted, especially for plastic product design and mold manufacturing. actually Plastic Products and Molds Require Specialized CAD/CAM, Professional mold engineers increasingly rely on them, at least in china, in mold industry, UGNX, CATIA, PRO/E , Cimatron E, Powermill, [...]
Polishing is essentially the removal of metal by the action of free abrasive grains carried to the work piece by a tool. The difference between these methods is only the degree of removal. […]
Polishing may achieve special optical properties in a product. When enlight beams pass through the product wall( compact discs, mirrors, etc.), any major unevenness or waviness will distort the light and result in poor performance of the product.
Polishing may enhance the appearance of the product. This is the most common requirement in plastic molding. It should be noted, however, […]
Polishing may facilitate ejection. This applies generally to the finish of the core, including side cores, in cases where the product has projections produced by deep recesses in the cavity or where there is little draft angle specified, the cavity must also be free of any roughness that prevent easy ejection.
Polishing may prevent stress risers in a product. Any sharp indent or corner in hardened mold steel, usually created during grinding, will increase the risk of breakage caused by stress concentration. Such corners must be polished to remove the shape “ gouges”.
This is a very economical process for cutting through-hole of arbitrary geometry in workpiece. The wall of the openings may be inclined to the plate surface. Thanks to the considerable efficiency of this process, some cavities are increasingly being cut directly into mold plates. […]
In plain vertical eroding, the eroded configuration is already dimensionally determined by the shape and dimensions of the electrode. Machining of undercuts is not feasible. […]
This creates craters in both electrodes, the size of which are related to the energy of the spark. Thus, a distinction is drawn between roughing with high impulse energy and planning. […]
Electric-discharge machining is a reproducing forming process, which uses the material removing effect of short, successive electric discharges in a dielectric fluid. […]