Cutting Brass Sheet

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Cutting Brass Sheet

Home Forums Beginners questions Cutting Brass Sheet

Viewing 25 posts - 1 through 25 (of 32 total)
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  • #560515
    Brian John
    Participant
      @brianjohn93961

      I used to order my 0.5 mm and 1.0 mm thick brass sheet from ebay/China and they were always happy to cut their 10 cm X 10 cm sheets to size for me : 9 cm X 7 cm and 7.5 cm X 7 cm. But it has a been a few years since I purchased anything and now I cannot find anybody who will cut it to size. Many of them don't even understand the request !

      What is the best way to cut brass sheet that will give a nice straight edge and still result in a flat sheet of brass ?

      Edited By Brian John on 31/08/2021 13:36:03

      Edited By Brian John on 31/08/2021 13:36:31

      Edited By Brian John on 31/08/2021 13:37:01

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      #10948
      Brian John
      Participant
        @brianjohn93961

        Best way to cut 0.5 mm and 1.0 mm brass sheet.

        #560517
        Speedy Builder5
        Participant
          @speedybuilder5

          Seems strange, but you can score metal several times to cut a line. Look up metal scoring tool on the net. Mine has a small carbide point and have used it to cut zinc sheet mainly, but also some 0.5mm steel sheet for the old 2CV car.

          Bob

          #560585
          Mick B1
          Participant
            @mickb1

            I cut brass sheet on a scrollsaw sandwiched between 2 bits of 3 – 5 mm plywood, using 35 TPI pinless blades.

            I'm normally cutting to a profile, but if you need to cut precision straight lines you'd need to rig up some sort of rip fence.

            #560607
            not done it yet
            Participant
              @notdoneityet

              I used a tool similar to THIS to rough cut about 3m of 0.8-1mm thick aluminium t’other day. My tool is years old and has glass reinforced handles, I think. It can cut straight or gentle curves but I only use it occasionally for light duty work – I would generally use a powered nibbler.

              It was easy once I could ‘help’ the kerf by gently pulling it up (it tends to roll the kerf, otherwise)I don’t think I would buy a silverline tool, mind.

              Knipex looks like the proper tool, silverline a cheap knock-off.

              #560614
              noel shelley
              Participant
                @noelshelley55608

                A 1.2mm cutting disc in a 4.5" grinder will do it ! Let the disc cut at it's own speed do not force it, clamp a piece of 3mm steel on it to give a straight guide. Noel.

                #560627
                Martin Connelly
                Participant
                  @martinconnelly55370

                  I've got a hand nibbler, I need to cut some 1mm copper sheet with it soon. It doesn't distort the metal the same way tin snips do.

                  Martin C

                  #560640
                  John Haine
                  Participant
                    @johnhaine32865

                    **LINK**

                    #560641
                    John Haine
                    Participant
                      @johnhaine32865

                      Oops! Slow website, multiple posts.

                      #560662
                      IanT
                      Participant
                        @iant

                        I think I'm surprised that no one has mentioned a Jeweller's saw yet.

                        With just a little practice you can cut very near to a scribed line with one and the 'experts' (and I'm certainly not one) can cut pretty much on it. Either way very little cleaning up is usually needed and there will no distortion. Of course if you need a quantity all the same it could be time consuming

                        Regards,

                        IanT

                        Piercing Saw cuts in 2mm brass

                        #560666
                        Bo’sun
                        Participant
                          @bosun58570

                          InaT,

                          By jewellers saw, do you mean a piercing saw?

                          #560692
                          Howard Lewis
                          Participant
                            @howardlewis46836

                            Hand or bench shears? With thin brass sheet, and sharp blades there should be no problem

                            #560711
                            Roger B
                            Participant
                              @rogerb61624

                              I use one of these small Proxxon saws with a HSS blade for cutting brass, aluminium and thin steel. You would need to check the clearances if you are working with larger sheets. The fence will go either side of the blade.

                              saw 1.jpg

                               

                              saw 2.jpg

                               

                               

                              Edited By Roger B on 01/09/2021 15:22:07

                              #560716
                              IanT
                              Participant
                                @iant
                                Posted by Bo'sun on 01/09/2021 10:27:28:

                                InaT,

                                By jewellers saw, do you mean a piercing saw?

                                Yes Bo'sun – I'm not sure if there is a clear distinction but I tend to think of a "Jewellers" saw as an adjustable frame type of piercing saw (as opposed to a fixed frame one) but they certainly both use 'piercing' blades.

                                I have both types of frame but find the adjustable form easier to use on small work – my fixed frame one (having a deeper throat) only comes out very occasionally.

                                Regards,

                                IanT

                                #560898
                                Brian John
                                Participant
                                  @brianjohn93961

                                  If I was just cutting one or two sheets then I would use a saw but as I intend to cut 24 pieces or more than the small hobby/ table saws seem like a good option. Most of them are designed to cut wood so I need to make sure I can get a metal blade to fit.

                                  There are quite a few for sale from China. I am sure the quality varies though !

                                  table saw – Buy table saw with free shipping on AliExpress

                                  This ebay model looks quite good :

                                  Hyuda Delux Mini Table Saw 200w | eBay

                                  Edited By Brian John on 02/09/2021 13:39:42

                                  Edited By Brian John on 02/09/2021 13:41:37

                                  #560899
                                  Trevor Drabble 1
                                  Participant
                                    @trevordrabble1

                                    Both Chronos and Axminster Tools sell the various Proxxon saws and blades .

                                    #560932
                                    Roger B
                                    Participant
                                      @rogerb61624

                                      This is the closest example I have of what you would like to do. This was 0.3mm Phosphor Bronze. I have cut up to 3mm thick Brass.

                                      **LINK**

                                      #560934
                                      Mick B1
                                      Participant
                                        @mickb1

                                        This is the sort of thing you can make from 0,9 or 1mm brass/copper with a scrollsaw. If you're after accurate square or rectangular work you'll need to make a fence.cormorant1.jpg

                                        #560936
                                        pgk pgk
                                        Participant
                                          @pgkpgk17461

                                          I spotted Lidl selling a laminate and vinyl cutter shortly in their DIY 'middle of Lidl' that claims to be good for 10 mm laminate. Under £20 so might be worth a punt for occasional thin metal sheet even though not sold for that?

                                          pgk

                                          #567367
                                          Brian John
                                          Participant
                                            @brianjohn93961

                                            The 0.5 mm brass plates arrived from China last week and the mini table saw arrived today. I have not had a chance to set up the saw and use it yet but I have another problem. The brass plates arrived in the post quite bent/buckled. Is there any way to flatten them out ? I have tried clamping the plates in a vice for 24 hours while sandwiched between two pieces of timber but this has had limited effect. Any suggestions would be welcome.

                                            Might it be better in future to order 1.0 mm thick plates ? These might hold their shape better and be less ''springy".

                                            Edited By Brian John on 19/10/2021 13:24:46

                                            #567376
                                            Bizibilder
                                            Participant
                                              @bizibilder

                                              I doubt if you could straighten your sheets without leaving some marks. If you are lucky you may be able to use the undamaged areas between the folds? Have you tried UK suppliers? Both M-Machine and Mallard Metals (to name just two and with the usual disclaimer) list 0.5mm (actually 26swg) sheet in their catalogues at about £8 for a square foot. They are likely to pack it properly and you should receive it flat.

                                              #567382
                                              Martin Connelly
                                              Participant
                                                @martinconnelly55370

                                                You can anneal brass to soften it. Some, if not all, brasses both work and age harden like copper. Once softened they should be easier to get flat in a suitable press/vice.

                                                Just to show my age, I remember one of the Blue Peter presenters (probably John Noakes) going to the Royal Mint to do a piece on its work. Every time they did some work on the cupro-nickel they were using they had to anneal it, then clean it ready for the next process. I think it went through about 5 of these cycles before they were finished.

                                                Martin C

                                                #567386
                                                DiodeDick
                                                Participant
                                                  @diodedick

                                                  I cut thin sheet brass or aluminium with a BK3 bandsaw (which is probably the grandfather of all the 3 wheel bandsaws on the market) with slow speed attatchment fitted. BUT always put a piece of scrap plywood under the metal, so that both are cut together.

                                                  #567398
                                                  Bob Stevenson
                                                  Participant
                                                    @bobstevenson13909

                                                    In the first editions of Gerald Wingroves superb and unique book; 'The complete Car Modeller' there is detailed a very clever little tool made from a piece of industrial hacksaw blade and shaped like a backward facing tooth! I can attest that it works extremely well when run across thin sheet against a straight edge.

                                                    For cutting thin sheet accurately I sometimes also use a small cutting disc on a Dremel…..clamp the workpiece to a piece of plywood and make sure to use eye protection. This method is excellent when making small detail cuts in thin workpieces.

                                                    lastly, I cut thin discs for clock wheels by using a specially made trammel adjusted to the exact diameter,…this basically cuts thru the brass when revolved by means of a 'knife tool'. I sometimes use the same basic method on a square piece mounted on an arbour in the lathe to cut out wheels.

                                                    Finally (?!)…there is an Eclipse sheet saw which works very well,..it looks like a small panel saw but has a hacksaw blade built into the edge, thus allowing any depth of sheet to be cut.

                                                    Interestingly, I don't any longer use a scroll saw to cut thin brass as I did not like that method, although many people do use it quite successfully.

                                                    #567447
                                                    Steve Pavey
                                                    Participant
                                                      @stevepavey65865

                                                      I’ve flattened bent sheet by annealing and then running it through a set of slip rolls – put a slight uniform curve in one way, then turn it over, reset the rolls a little and flatten it out on the second pass. Of course, it means knowing someone with the slip rolls, or spending more on another bit of equipment..

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