To All:
The October issue of MoldMaking Technology Online magazine had an article on trochoidal toolpathing. Let me copy some excerpts:
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Speed: There are also other advantages to using trochoidal toolpaths. Because heat is minimized you can cut materials at much faster SFM. And with trochoidal paths you can take deeper depth-of-cuts in the Z-direction. Typically the Z depth-of-cut can be up to two times the diameter of the cutter.
Tool Selection: Smaller diameter tools are typically used, reducing the cost of the cutter and lowering the overall expense of manufacture.
Summary: By using newer programming techniques, difficult material can be cut easily. Use smaller diameter tools to minimize the arc of engagement and control heat. Many newer materials entering the market tend to be more exotic and difficult to cut. Use specific cutter geometry for each application. By using trochoidal toolpaths and hybrid trochoidal toolpaths you can successfully machine these exotic materials.
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