Delcam to preview “safest-ever” PowerMILL CAM at BIMU

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Delcam will preview the 2011 version of its PowerMILL CAM system for 5-axis and high speed machining at the BIMU exhibition in Milan, 5-9 October.

This release makes the programming of safe toolpaths easier than ever thanks to new stock-model-engagement options that protect both the cutting tool and the machine from excessive loading. The options to optimise tool loading will help overcome a constant conflict for programmers. On the one hand, they want to maximise productivity by setting feed-rates as fast as their machines will allow; on the other hand, they need to ensure safe speeds that will not break the tool. A number of CAM programs incorporate strategies based on the extent of cutter engagement to give more consistent loading on the tool and so allow higher feed-rates. However, these options are usually limited to the initial roughing operations, or to only roughing and rest-roughing. PowerMILL's new stock engagement technology can be employed with all of the system's finishing and rest-finishing strategies as well, ensuring that the safest-possible toolpaths are run on the machine at all stages. The key to this more comprehensive solution is the accuracy of the stock models produced within PowerMILL after each machining stage has been completed. These models give precise representations of the material still remaining on the part and are used to ensure that the cutter is never asked to remove more material than it can safely cut. At the same time, the stock models also ensure that toolpaths are not produced where there is no material remaining so the machine tool is never left cutting air. Other enhancements include new editing capabilities to simplify the machining of duplicate items; more versatile control of feed-rates for leads and links; and extra functionality for sketching, plus the completion of the move to the new clearer forms for the complete range of strategies.