Announcement

Collapse
No announcement yet.

Can you use hacksaw blades as parting tools?

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Can you use hacksaw blades as parting tools?

    One of the things I found in the tooling drawers of my South Bend was a variety of old hacksaw blade lengths ground on the tips like cutting tools...the only thing I can figure is that the previous owner used these as parting tools or something. I guess I could fab a holder and see if it works but I figured I'd better check here before I go making something (else) that doesn't work.

  • #2
    I use a hacksaw blade as a parting tool all the time. Stop the lathe, put it in back gear to hold it steady, Saw the %%^& off. Then finish the cut surface. Ya don't always have to use the cutoff tool.
    Free software for calculating bolt circles and similar: Click Here

    Comment


    • #3
      Darn that was a quick response...I do the same. I just wonder what the assortment of ground hacksaw blades was used for, thought I might be missing out on an old timer's trick or something.

      <font face="Verdana, Arial" size="2">Originally posted by Evan:
      I use a hacksaw blade as a parting tool all the time. Stop the lathe, put it in back gear to hold it steady, Saw the %%^& off. Then finish the cut surface. Ya don't always have to use the cutoff tool.</font>

      Comment


      • #4
        abn:
        That is how you learn - try something until it works or you get pissed off and try something else. It is the scientific way - the trick is in knowing it is hopeless and moving on.

        Comment


        • #5
          In one of the British publications geared toward the amatuer machinist, I recall seeing a sketch of a "parting tool" that used a piece of a hacksaw blade to do the cutting. The idea was to reduce waste in a piece of stock. I've never tried it for myself.

          Comment


          • #6
            I usually run the lathe at slow speed, and slowly saw with the hacksaw, just to help clear the chips. For me, it's easier and quicker than a cut-off blade.
            FWIW, I came across some surplus Disston hacksaw blades- among the best cutting I have used.
            Ah, but you said pieces of hacksaw blades. Of course, there's no side relief to them, so they tend to jam, also they are usually too thin to stay on spot. Can be done, though, especially if the cut is not deep.

            [This message has been edited by darryl (edited 09-21-2003).]
            I seldom do anything within the scope of logical reason and calculated cost/benefit, etc- I'm following my passion-

            Comment


            • #7
              Maybe they were used to make narrow grooves.

              Comment


              • #8
                Darryl,

                I sometimes will run the lathe at slow speed while sawing but I don't like it if there is a possibilty of the hacksaw jamming in the cut.
                Free software for calculating bolt circles and similar: Click Here

                Comment


                • #9
                  Using a hacksaw in a lathe is punishable by death in some shops. I would make sure you cover the lathe ways to protect them from the saw.

                  George

                  Comment


                  • #10
                    That's what the piece of plywood is for.
                    Free software for calculating bolt circles and similar: Click Here

                    Comment


                    • #11
                      Evan:
                      No, that is what a properly adjusted cut-off tool is for.

                      It is dangerous to use a hacksaw while a lathe is running, plus it should not be near a lathe anyway.

                      The hack saw plades may have been used to groove a piston (like a cut-off tool) for a steam engine or for e-clips on a shaft.

                      Comment


                      • #12
                        I agree with all the safety concerns raised about hacksawing with lathe running. In hindsight, I shouldn't have suggested it, my apologies.
                        I seldom do anything within the scope of logical reason and calculated cost/benefit, etc- I'm following my passion-

                        Comment


                        • #13
                          I have used razor blades for cut off tools when the workpiece was 0.005" wall thickness plastic tubing. Using a hacksaw blade as a cut off tool should work fine on the right material, could be it was foam plastic or summer sausage. Lathes get used for all kinds of things other than metal. The tools from Thinbit work very nicely and a hacksaw blade might be used in a similar way for grooves and cut off.

                          Comment


                          • #14
                            A saw-z-all blade works pretty well. They are a bit thicker so are less flexible. They come in all sorts of sizes, shapes an thicknesses as well.
                            Grind the teeth till they are just gone. Many blades being bi-metal leaving some HSS will give you a better tool. Grind to the shape you want. Then lightly tap the cutting edge a few times with an hammer. This will give you small amount of side clearance that will allow the tool to work much better. Hone the edge with a stone before use.

                            Comment


                            • #15
                              About sawing with the lathe running.....

                              I betcha nearly everyone who said it was unsafe has done it this year themselves........do as I say, not as I do........

                              Comment

                              Working...
                              X