Boring head or fly cutter

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Boring head or fly cutter

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  • #27965
    Eric Cox
    Participant
      @ericcox50497
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      #526340
      Eric Cox
      Participant
        @ericcox50497

        I have a small amount of machining to do that requires fly cutting. Would you use a boring head which I have or get a fly cutter.

        #526344
        Michael Gilligan
        Participant
          @michaelgilligan61133

          If there is room to use the boring head, and it will come to no harm … then there is no need for a dedicated fly cutter.

          As Liverpudlian friends used to say:

          You can use a Rolls Royce to kill a pig.

          MichaelG.

          #526363
          larry phelan 1
          Participant
            @larryphelan1

            Very well put ! You have a great way with words.

            I must remember that for future use.cheeky

            #526369
            Emgee
            Participant
              @emgee

              Eric

              Much fly cutting involves interrupted cuts which will put more load on the boring head than straightforward boring so if you do use the boring head best to tighten all setting and adjusting screws as well as keeping DOC and speed to a level that the head copes with.
              You don't say what machine you will use or which material you will be cutting but that information would be useful to advise on spindle speed, DOC and traversing feedrate.

              Emgee

              #526378
              not done it yet
              Participant
                @notdoneityet

                I must remember that for future use.

                Probably not. The liverpudlians would likely be using the word ‘pig’ as a metaphor.🙂

                #526582
                Eric Cox
                Participant
                  @ericcox50497

                  The machine is a Warco WM14 cutting mild steel 2" wide by 4" long

                  #526618
                  Howard Lewis
                  Participant
                    @howardlewis46836

                    Out of kindness to the Boring head, I would feel inclined to make or buy a Flycutter. It will always "Come in handy, one day" for other jobs.

                    And is likely to be more rigid than a boring head, when subjected to interrupted cuts.

                    MIke Cox published a design, in MEW, for a Flycutter on the principle of the Tangential Turning Tool.

                    Although mine differs slightly from his design, it functions quite well!

                    Howard

                    #526625
                    mechman48
                    Participant
                      @mechman48

                      I am fortunate that I have one of each, fly cutter, boring head, & a 60mm face ( 4 insert&nbsp cutter so I have a choice. For the size you mention I would use my insert face cutter first followed by the fly cutter, & lastly the boring head ( as emgee's reasoning&nbsp.

                      George.

                      #526637
                      John Baron
                      Participant
                        @johnbaron31275

                        Hi Eric, Guys,

                        You can make a fly cutter quite easily and more rigid than most you could buy.

                        new_flycutter-1.jpg

                        This one is a simple disc 20 mm thick on a 20 mm shaft, using a piece of 6 X 6 mm square HSS as the cutter. This on will cover about 65 mm. The tool bit is held in an 8 mm diameter hole using an M6 grub screw.

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