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In common with the aforementioned FF cutters,
        they also carry the H600 WXCU inserts – another             Questions & Answers
        example of customer-friendly versatility - the same
        insert is mounted in two functionally different
        kinds of milling tools.
                                                                Q: Can fast feed milling be applied to high
                                                                temperature alloys, in particular to titanium?
                                                                A: Definitely yes, on condition that the tool
                                                                (cutting geometry, carbide grade) and the cutting
                                                                data are chosen correctly. For example, when FF
                                                                milling titanium alloys by HELIDO 600 UPFEED
                                                                indexable milling cutters, HP-type inserts should
                                                                be used and the recommended starting feed per
                                                                tooth employed.


                                                                Q: Can we operate a fast feed tool for rough
                                                                milling a full slot?
                                                                A: Yes, however, the cutting speed and the feed
                                                                per tooth should be reduced when compared
                                                                with the usual recommended values for the
                                                                machined material.


                                                                Q: Is FF milling suitable for hard steels?
        The second type of MF cutters is the HELIDO             A: Yes, but substantial reductions in the feed per
        1200 UPFEED: this range of face mills with              tooth starting values of fz will be in average 3-4
        double-sided hexagonal inserts has 12 cutting           times less compared to the soft steels.
        edges. The cutters are intended for productive
        milling plane surfaces and have the ability to          Q: A virtual “radius for programming” of a FF tool
        machine near to the straight wall of square             is specified in catalogues and guides, what does
        shoulders. High MRR and cost effectiveness per          this mean
        insert cutting edge make the cutters an attractive      A: FF tools have a specific shape that differs from
        tool for upgrading low power machines to triple F.      ordinary milling cutters. For CNC programming
                                                                purposes users may consider the tool like a cutter
        In consideration of fast feed milling and its           with a corner radius.
        moderated derivative, the main applications are:
      •  rough face milling especially if a machining           Q: When milling, the high overhang of a tool
        allowance (material to be removed) is high              normally requires reduced cutting speed and feed
        and a machined surface has relatively                   per tooth. Is it true for the FF technique?
        big dimensions                                          A: Regarding the speed – yes; and speaking
      •  rough milling of cavities and pockets                  about the feed, although, our experience shows
      •  sculpturing by side plunging                           that rather than reduce feeds, a more effective
                                                                method is to reduce the depth of cut and operate
        In the majority of cases that are connected with        at the unchanged fz. This not only improves the
        the listed applications, the smart decision of          stability of the tool and enhances chip evacuation,
        introducing fast milling into a process significantly   it also reduces recutting
        improves productivity and cuts production costs.        (in many cases the high tool overhang is a direct




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