Software Update
set of rules to analyze tool engagement and the material re- moval, constantly changing the cut motion based on what’s happening at the machine, at that moment. The results include shorter cycle times, less wear and breakage of tools,
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less wear on machines, and even an easier time cutting hard materials. Very simply said, Dynamic Motion achieves this by using a different approach when calculating tool motion. Older technology bases tool motion on using the fi nished part to calculate the tool- path trajectory. Basically you envision a pocket that has continuously offset and parallel lines that begin from the walls and move inward. These lines would be the trajectory that the tool would follow. Using this methodology which had no knowledge of remaining stock, the tool would be forced into unac- ceptable conditions of varying tool-to- material engagement. Sometimes the engagement would be too heavy which results in poor chip evacuation, uneven machining loads, heat buildup, and a decrease in tool life. Conversely, if the tool passes through an area where there is too little or no engagement, the toolpath becomes ineffi cient. With Dynamic motion, it all starts with the material. Dynamic toolpaths use the material to calculate the tool trajectory which in turn guarantees a consistent tool-to-material engagement, thus con- trolling the issues mentioned above. Some specifi cs on Dynamic include shortened cycle times. By dramatically reducing air cutting and maximizing safe engagement, Dynamic Motion toolpaths can reduce cycle times by 25- 75%, while offering extended tool and machine life. Traditional toolpaths often use only the fl ute nose, causing uneven tool wear. Because Mastercam Dynamic Motion can use the full fl ute length, shops get even wear and heat distribu- tion resulting in fewer tool changes and less grinding. This same Dynamic Motion also produces a consistent chip load, reducing vibration and pulling heat away from the part and tool through the
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ManufacturingEngineeringMedia.com | October 2014
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