![]() ![]() Feeding the tool faster is the solution to preventing excessive radial chip thinning, which is a nice “solution” to incorporate. A small chip has less capability to hold heat which results in either the tool or the workpiece absorbing this latent heat, which is undesirable. It also can result in the chip not being physically large enough to hold the heat produced by the cutting operation. If it doesn’t, then we are not maximizing the tool’s capability. The average chip thickness should still meet the tool manufacturer’s recommendation for chip load. 10-20% radial engagement of the tool diameter results in a significant reduction in average chip thickness, and we need to be aware of this. When less than half the tool diameter is engaged in the cut, the average chip thickness is less than the advance per tooth. ![]() This is the phenomenon of creating a smaller chip by engaging a small percentage of the tool diameter (less than half). Radial chip thinning is the first strategy exploited in dynamic milling. Incorporating two different machining strategies creates the concept and allows advantages not realized before. Dynamic milling is a strategy that is becoming more and more popular due to its improved material removal rates while still maintaining process security compared to traditional milling strategies. ![]()
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