Announcement

Collapse
No announcement yet.

Seeking advice

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

  • Seeking advice

    I have been trying to cut some aluminum with my scrollsaw.
    The aluminum is around 1/8 thick. It is an old STOP sign.
    I normally do not break blades but wear them out so they are so dull they won't cut anymore.

    Not so with the aluminum. I have gone through half a dozen on the one project.
    I have used some metal cutting blades but they were too thin. 0/2s
    I then tried skip tooth, reverse, regular and double tooth.
    The best results I got were with a number 7.
    I will not mention brands because I used several and it really isn't a fair test since none of them, other than the 0/2 which I got at a garage sale were metal blades.

    Does anyone have experience cutting aluminum, and what did you use?

    Just for the record, I am cutting out a large gecko for a yard ornament for a friend. I want to get it done by Saturday.
    CAЯL HIRD-RUTTEЯ
    "proud member of the best scroll sawing forum on the net."
    Ryobi SC180VS scroll saw EX21

  • #2
    There are diamond coated blades available from American Science and Surplus.

    John

    Old Dust

    Comment


    • #3
      Hi Carl,

      Are you using any lubricant?

      I suspect your blades are heating to the point of breakage.

      And I would try a fine to med tooth, non reversing blade.

      And if you're really in a bind, have you thought about modifying a hacksaw blade to fit your scrollsaw? Just a thought.

      Regards,
      Marcel
      http://marleb.com
      DW788. -Have fun in the shop or it isn't a hobby anymore.

      NOTE: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced.

      Comment


      • #4
        Aluminum alloys

        Carl. I have never attempted to cut aluminum on a scroll saw but I retired from an aluminum manufacturing plant. I retired as a maintenance supervisor there but also worked as a production foreman for a while. The metal you're trying to cut is a very hard alloy, probably 5052, and is as hard as a wood pecker's lips. I would not advise cutting something that large on a scroll saw from that particular alloy. I'm not saying it can't be done but you will burn up a BUNCH of blades. If you had a softer alloy it would be a breeze with 1/8 inch stock. You're probably not doing anything wrong.....it's just really difficult to cut that alloy in as much as it's almost as hard as the blade you're using.
        If it don't fit, don't force it....get a bigger hammer!!

        Comment


        • #5
          cutting ally

          Hi Carl,
          I have cut 1/8 aluminum with a plane old (new ) #5 blade ,i find if i smear the cutting line with a soft grease ,so that the blade runs through it on every stroke it works fine, but as Neal says there are many grades of aluminun, hope this is of some help!!!!!!!.

          -----good look with the project--------- uk Scroller--------

          Comment


          • #6
            Thanks so much for the info. I am sure this is the alloy since my motor gets quite hot after a short time.

            I am going to get some lube and I will pick up some metal cutting blades from Canadian Tire, I know they are not the best but it is a rush project.

            Live and learn
            CAЯL HIRD-RUTTEЯ
            "proud member of the best scroll sawing forum on the net."
            Ryobi SC180VS scroll saw EX21

            Comment


            • #7
              Hey Carl.

              I work in the sign industry and have fooled around with lots of aluminum. I've had to play with various road signs and some are galvanized as well. If it is galvanized it'll be even harder and really use up blades. I've cut some aluminum on my scroll saw and not had too much of a problem. Some grease or cutting wax, WD-40, any kind of lubricant will help and definitely don't use reverse blades. Another one of those cases of going really slow.

              Good luck.

              Comment


              • #8
                ....an oxyacetalene torch would get er done quickly....
                ‎"Orphans are easier to ignore before you know their names. They're easier to ignore before you see their faces. It's easier to pretend they're not real before you hold them in your arms. But once you do, everything changes."

                D. Platt

                Comment


                • #9
                  I broke down and bought a pack of 10 mini hacksaw blades. They are 6" with pins on the ends.
                  I just snapped the ends of with diagnal cutters.
                  They are hard to turn tight cornes but I have cut out most of the project with just one blade.
                  CAЯL HIRD-RUTTEЯ
                  "proud member of the best scroll sawing forum on the net."
                  Ryobi SC180VS scroll saw EX21

                  Comment


                  • #10
                    How are you going to protect future woodwork projects against metal dust contamination?

                    I was going to ask what precautions you're using, but having recently had an insight into how your mind works I decided not to .

                    Gill
                    There is no opinion, however absurd, which men will not readily embrace as soon as they can be brought to the conviction that it is readily adopted.
                    (Schopenhauer, Die Kunst Recht zu Behalten)

                    Comment


                    • #11
                      I am using my old saw Gill.
                      Frankly I never thought much about the aluminum filings affects of future projects.
                      I will have to vacuum and dust., Unless someone has an aluminum magnet
                      CAЯL HIRD-RUTTEЯ
                      "proud member of the best scroll sawing forum on the net."
                      Ryobi SC180VS scroll saw EX21

                      Comment


                      • #12
                        Hi Carl

                        Another approach might be to scroll cut a wooden or MDF template, then fit a carbide cutter to a router and use the router to cut the aluminum to shape.

                        Gill
                        There is no opinion, however absurd, which men will not readily embrace as soon as they can be brought to the conviction that it is readily adopted.
                        (Schopenhauer, Die Kunst Recht zu Behalten)

                        Comment


                        • #13
                          Hmmm you are a font if good info Gill.

                          I am almost done this particular project, but I may use that in the future,

                          One thing I have learned through all this, Used traffic signs are way to hard to do intricate fretwork. I will look for another source of material.
                          CAЯL HIRD-RUTTEЯ
                          "proud member of the best scroll sawing forum on the net."
                          Ryobi SC180VS scroll saw EX21

                          Comment

                          Unconfigured Ad Widget

                          Collapse

                          Latest Topics

                          Collapse

                          • millwab
                            Reply to Source for 5-Ply poplar plywood?
                            by millwab
                            I’ve migrated to poplar from Baltic birch for my puzzles in part because it’s easier to cut and doesn’t wear out blades as quickly as the BB does. I can usually cut 5x the number of puzzle pieces in poplar than BB with each blade. I currently get my poplar ply from Cherry Tree. They sell it in...
                            Yesterday, 11:30 PM
                          • will8989
                            Reply to Tough Decisions
                            by will8989
                            Skimming through this post, I came across 1 response to Quartz and one to Bill Wilson as PMs from Kelly, a new editorial assistant, regarding our comments. Here is my 2 cents regarding the copying. To understand what we mean, please take the issue with the sword fish on the front and copy that on a...
                            Yesterday, 11:15 PM
                          • millwab
                            Reply to Demo display
                            by millwab
                            I want to say I’ve seen the pattern before but can’t remember where. I’ll have to try searching the SSWC article index to see if it was in the magazine (although previous searches haven’t been too successful for me in the index)....
                            Yesterday, 11:14 PM
                          • will8989
                            Reply to Bruce’s latest project.
                            by will8989
                            It really isn’t that bright when you see them. I want to paint the rose and vine and leaves but he’s skeptical since I always say I hate to paint. I can actually paint just don’t like to that much. I think a dark red at the center of the rose graduating to a lighter shade on the outer edges and...
                            Yesterday, 10:20 PM
                          • Jim Finn
                            Reply to Sorority letters
                            by Jim Finn
                            I finally got the order for the 9" tall version of this. 75 of them. Started on them today....
                            Yesterday, 03:43 PM
                          Working...
                          X