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  • OT question on metal forming

    I have an old chaise lounge piece of outside patio furniture. It is made of round formed aluminum tubing and has plastic strap webbing attatched for the body to rest against. My question: The aluminum is 7/8" OD and .070" wall, .740" ID. OK...
    The 90 degree bends seem to be mandrel bent from the reduced diameter at the bend but to my surprise........inside the aluminum tube(not all) is a steel 1/2 " x
    .050" tube inside which is a very sloppy fit. What is this about? Would it be to help the aluminum to not collapse but like I said it's looks mandrel bent. I am tearing it apart because I need the tube for my heli project. We don't use it and it's been in my junk pile for years. No.........I don't use present deck furniture for my projects.
    Last edited by monte55; 01-07-2009, 04:04 PM.
    Nick
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  • #2
    To keep the corners from unbending and wracking?

    Just a guess. I have no real knowledge....

    Frank

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    • #3
      Is there a joint there?

      I see this in boat bimini tops where the alum. sections join. I always assumed it was for the purchase of the screws holding the sections together.

      Comment


      • #4
        I was asked to fix some of the chairs, not yours. LOL
        Had the steel in it as well, only thing I could figure was for strength.
        Be safe
        Jeff

        Give more than you get and
        you will get more than ya need.
        This is true for the good and bad
        that life puts out.

        Comment


        • #5
          If the diameter was reduced then it would look as if it was NOT mandrel bent.
          Mandrel bending is used to keep the diameter consistent.
          The steel was more than likely used as a cheap way to keep the material from kinking while bending on their bender.
          I would think twice about using unknown imported used material on even the most unimportant projects... unless it was to repair/beef-up other lawn chairs which are nortoriously known for being junk.

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          • #6
            FK is correct the reduced section diameter is indication of non mandrel forming.

            If the material is in good condition free from corrosion use it.

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            • #7
              The reduced diameter is only on the inside of the bend. There are no wrinkles
              on the inside of the 90 degree bend. The outside of the bend is smooth with the tube. I would think the tube would have ovaled if not in a mandrel. It's not. The wierd thing is, as many 90 degree bends as it has, the steel round metal was only in one piece. It fits so sloppy I can't see how it would help much. Another wierd thing is that some of the aluminum tubing has what looks like a welded seam inside like some steel but then again, some is totally smooth inside. The wall of the aluminum is .065 and I wouldn't think it would
              kink if bent properly. ....maybe the foreman was walking by and saw the steel tube on the floor and told the worker to clean up his area so he shoved it inside the aluminum tube.
              Nick
              Miller 252 Mig
              Miller Cricket XL
              Millermatic 150 Mig
              Miller Syncrowave 200 Tig
              2-O/A outfits
              Jet Lathe and Mill
              Jet 7x12 horz/vert band saw
              DeWalt Multi Cutter metal saw
              Century 50 Amp Plasma Cutter
              20 ton electric/hydraulic vertical press
              Propane Forge
              60" X 60" router/plasma table

              www.youtube.com/watch?v=jTu7wicVCmQ
              Vist my site: www.nixstuff.com
              and check out some of my ironwork and other stuff

              Comment


              • #8
                Originally posted by monte55 View Post
                I have an old chaise lounge piece of Wally World cr@p outside patio furniture that we bought 20 years ago. It is made of round formed aluminum tubing that is oxidized 1/2 way through and has plastic strap webbing attatched for the body to rest against (although the webbing is pretty much desinegrated through the years....)
                You're using THAT on your helicopter project??!!!!

                Well Monte, it's been AWSOME knowing you... I'll think of something to put on your headstone....
                I'm not late...
                I'm just on Hawaiian Time

                Comment


                • #9
                  What!!............you've never heard of a chaise lounge on a heli? Hey...I'm laying back and gettin down with my bad self. You have a problem widdat?
                  Uh huh..oh yeah..ain't it funky now.
                  Nick
                  Miller 252 Mig
                  Miller Cricket XL
                  Millermatic 150 Mig
                  Miller Syncrowave 200 Tig
                  2-O/A outfits
                  Jet Lathe and Mill
                  Jet 7x12 horz/vert band saw
                  DeWalt Multi Cutter metal saw
                  Century 50 Amp Plasma Cutter
                  20 ton electric/hydraulic vertical press
                  Propane Forge
                  60" X 60" router/plasma table

                  www.youtube.com/watch?v=jTu7wicVCmQ
                  Vist my site: www.nixstuff.com
                  and check out some of my ironwork and other stuff

                  Comment


                  • #10
                    Hey Bert...........I just got my $900 upgrade 3D program(don't know how'll I pay for it).....send me a pic or whatever of your metalworks Logo and I'll see what I can come up with.......Nick
                    Nick
                    Miller 252 Mig
                    Miller Cricket XL
                    Millermatic 150 Mig
                    Miller Syncrowave 200 Tig
                    2-O/A outfits
                    Jet Lathe and Mill
                    Jet 7x12 horz/vert band saw
                    DeWalt Multi Cutter metal saw
                    Century 50 Amp Plasma Cutter
                    20 ton electric/hydraulic vertical press
                    Propane Forge
                    60" X 60" router/plasma table

                    www.youtube.com/watch?v=jTu7wicVCmQ
                    Vist my site: www.nixstuff.com
                    and check out some of my ironwork and other stuff

                    Comment


                    • #11
                      Bert......as far as something to put on my headstone..........cash is always
                      nice
                      Nick
                      Miller 252 Mig
                      Miller Cricket XL
                      Millermatic 150 Mig
                      Miller Syncrowave 200 Tig
                      2-O/A outfits
                      Jet Lathe and Mill
                      Jet 7x12 horz/vert band saw
                      DeWalt Multi Cutter metal saw
                      Century 50 Amp Plasma Cutter
                      20 ton electric/hydraulic vertical press
                      Propane Forge
                      60" X 60" router/plasma table

                      www.youtube.com/watch?v=jTu7wicVCmQ
                      Vist my site: www.nixstuff.com
                      and check out some of my ironwork and other stuff

                      Comment


                      • #12
                        Originally posted by monte55 View Post
                        What!!............you've never heard of a chaise lounge on a heli? Hey...I'm laying back and gettin down with my bad self. You have a problem widdat?
                        Uh huh..oh yeah..ain't it funky now.
                        lol !!!!!!!!!!!! For KEEPING it as a chair, cool, I thought you were going to use
                        PARTS out of it and use it for the actual heli itself!!!

                        you gonna have a little margarita holder in their too???
                        I'm not late...
                        I'm just on Hawaiian Time

                        Comment


                        • #13
                          Actually some of the tubing will be used on the heli. Not as a chair. The material is in very good shape. It will be part of a handle. No corrision at all. It was power coated. I just was tigging on it and it went fine..........Nick..so there!
                          Nick
                          Miller 252 Mig
                          Miller Cricket XL
                          Millermatic 150 Mig
                          Miller Syncrowave 200 Tig
                          2-O/A outfits
                          Jet Lathe and Mill
                          Jet 7x12 horz/vert band saw
                          DeWalt Multi Cutter metal saw
                          Century 50 Amp Plasma Cutter
                          20 ton electric/hydraulic vertical press
                          Propane Forge
                          60" X 60" router/plasma table

                          www.youtube.com/watch?v=jTu7wicVCmQ
                          Vist my site: www.nixstuff.com
                          and check out some of my ironwork and other stuff

                          Comment


                          • #14
                            Like I said I just tigged a t joint with the round tubing and beat the heii out of it with a hammer and it hung in there. No breaks etc but the tube was squashed to bits. Yaaaaaaaaaaaaaaaa
                            Nick
                            Miller 252 Mig
                            Miller Cricket XL
                            Millermatic 150 Mig
                            Miller Syncrowave 200 Tig
                            2-O/A outfits
                            Jet Lathe and Mill
                            Jet 7x12 horz/vert band saw
                            DeWalt Multi Cutter metal saw
                            Century 50 Amp Plasma Cutter
                            20 ton electric/hydraulic vertical press
                            Propane Forge
                            60" X 60" router/plasma table

                            www.youtube.com/watch?v=jTu7wicVCmQ
                            Vist my site: www.nixstuff.com
                            and check out some of my ironwork and other stuff

                            Comment


                            • #15
                              Powdercoat from China
                              Well, testing you're doing is cool....just don't wanna lose you
                              I'm not late...
                              I'm just on Hawaiian Time

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