leighton woodall Posted December 19, 2015 Share Posted December 19, 2015 hello im from the uk and have a few around 10 original timber and fibre glass anvil moulds have these got any real value. i got them from a factory shut down thanks leighton Quote Link to comment Share on other sites More sharing options...
the iron dwarf Posted December 19, 2015 Share Posted December 19, 2015 do you have a picture of any of these Quote Link to comment Share on other sites More sharing options...
Black Frog Posted December 19, 2015 Share Posted December 19, 2015 I have one set of the wood patterns from Brooks, and would love another! Shoot me an pm anytime: Quote Link to comment Share on other sites More sharing options...
Dan P. Posted December 20, 2015 Share Posted December 20, 2015 Leighton I have sent you a PM Quote Link to comment Share on other sites More sharing options...
leighton woodall Posted December 22, 2015 Author Share Posted December 22, 2015 Quote Link to comment Share on other sites More sharing options...
WmHorus Posted December 22, 2015 Share Posted December 22, 2015 Where on earth did you get that, and why share the story.... Quote Link to comment Share on other sites More sharing options...
Frosty Posted December 22, 2015 Share Posted December 22, 2015 A Brooks anvil pattern! Did you make the mold or is it part of the score? Welcome aboard Leighton glad to have you. If you'll put your general location in the header you might be surprised how many of the IFI gang live within visiting distance. We LOVE pictures here and I'm looking foreward with GREAT anticipation to pics of you pouring steel in that mold, break out, clean up and the finished results. No need ti wait till it's finished, we love good Works in Progress pics and reports. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
dfsrusa Posted December 23, 2015 Share Posted December 23, 2015 Very interesting. It does give me some questions. From reading here and elsewhere I understood that forged anvils were better than cast iron anvils such as the 55 lb Harbor Freight anvil that I'm starting out with. But seeing this mold makes me think that at least Brookes casted their anvils. Is that how most of the well known brands are made? Is there some type of forging process after the casting? It would be very cool to fill it with molten steel, but I imagine you would probably need an industrial sized furnace to get the volume of molten steel required. Quote Link to comment Share on other sites More sharing options...
Frosty Posted December 23, 2015 Share Posted December 23, 2015 There's a world of difference between a horrible fright cast iron Anvil Shaped Object (ASO) and a cast steel anvil. Most modern anvils are cast steel, once the Bessemer process made steel affordable it was no longer necessary let alone desirable to forge wrought iron bodies and weld HC steel face plates to make anvils. There are however some very good cast iron body with mold welded steel face and horn anvils, top of the list being Fisher anvils. The difference in resonance frequency between the steel face and cast iron body damps the sound so they don't ring. SWEET anvils. My go to anvil is a 125lb. Soderfors cast Swedish steel anvil, it's not only the best anvil I've ever used it will hurt your ears through muffs and ear plugs with a missed blow. Loud doesn't begin to describe the ring. It is one piece of homogeneous hardened steel so it's like a big tuning fork. Brooks are or were high end cast steel anvils. I'll bet you could find a steel mill close enough to buy in on the end of a crucible and get one poured. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
gote Posted December 27, 2015 Share Posted December 27, 2015 I don't get it. How can you cast molten steel into a fiber glass and timber mold?? I would have thought that the steel would run straight through. Patterns for casting are positive pieces that are used to form the mould in a material that can stand the heat. Quote Link to comment Share on other sites More sharing options...
the iron dwarf Posted December 27, 2015 Share Posted December 27, 2015 the positive pieces could be used as patterns to make a mould, the other ones could be used to make a pattern for example by lost wax Quote Link to comment Share on other sites More sharing options...
gote Posted December 27, 2015 Share Posted December 27, 2015 Never heard about lost wax used for steel but it makes some sense. Interesting to note how the hardy hole is formed using a separate piece that fits into the mould. Quote Link to comment Share on other sites More sharing options...
the iron dwarf Posted December 27, 2015 Share Posted December 27, 2015 dont know that it is but I think it could be done and not only wax other materials are melted or burnt out of moulds like polystyrene ( styrofoam to americans ) Quote Link to comment Share on other sites More sharing options...
BIGGUNDOCTOR Posted December 27, 2015 Share Posted December 27, 2015 The white part is probably just be a protective case for the wooden pattern to protect it from damage. To use these ,the wooden pattern was put into sand that is rammed around it, then it is carefully removed. The two negative molds are then clamped together forming the complete mold that the steel is poured into. Lost foam would be a way to do it today. A foam pattern is formed, then the sand is packed around it, but with lost foam the pattern is not removed. As the steel is poured into the mold the foam just vaporizes. The engine in my Saturn was cast this way, you can see the texture of the Styrofoam beads left in the castings.. Quote Link to comment Share on other sites More sharing options...
JNewman Posted December 27, 2015 Share Posted December 27, 2015 The white fiberglass is a mould for making a fiberglass, cast epoxy or urethane pattern. A wooden pattern will not stand up as well for higher volume parts as a plastic pattern will. I had a long post with way more information about master patterns aluminum patterns and plastic patterns but it disappeared when I hit submit Quote Link to comment Share on other sites More sharing options...
JNewman Posted December 27, 2015 Share Posted December 27, 2015 Could not post this in the other thread Lost styrofoam is good for very high volume parts like your manifold where they make aluminum moulds for the styrofoam. It is also good for big one off castings, but for the one off castings where the styrofoam is machined to shape the surface finish is not as good as a conventional pattern. The larger styrofoam patterns are also actually pulled out of the sand rather than having the metal poured on the styrofoam due to the fumes and gasses from burning the styrofoam. The high volume shops can capture the fumes because they are pouring in a small area and then the moulds go down a conveyor of some sort to cool. I tried to merge the threads, but I can not locate any threads titled "fiber glass pattern",... I accidently found it , If people would at least attempt to help themselves it would make our jobs easier, the title used here has absolutely nothing to do with the title of the target thread. How can you expect any of us to know what you were thinking, next time I wont bother. there are way too many important thing needing done. Quote Link to comment Share on other sites More sharing options...
BIGGUNDOCTOR Posted December 27, 2015 Share Posted December 27, 2015 I don't see any casting gates on the fiberglass one.. Quote Link to comment Share on other sites More sharing options...
Frosty Posted December 27, 2015 Share Posted December 27, 2015 I don't think any professional foundry would pour directly on styrofoam, just too dangerous IF EPA would let you. An alternative to pulling the form is dissolving it with acetone using a vacuum hose to remove the dripping goo without letting much soak into the casting media. This works really well with investment molds and you don't have to worry about the smoke during preheat, there's nothing to burn out. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
the iron dwarf Posted December 27, 2015 Share Posted December 27, 2015 In china or india or a few other places things might be different Quote Link to comment Share on other sites More sharing options...
JNewman Posted December 28, 2015 Share Posted December 28, 2015 I deal with several foundries on a regular basis and occasionally quote on making styrofoam patterns and none of them do anything but pull/dig them out. The gating for the castings is usually done as separate pieces from the pattern, If the pattern is mounted on cope and drag boards or a matchplate the gating will be mounted as well but they are normally separate pieces so they can be changed easily. . Every Foundry I have ever dealt with has their own ideas about gating and risering. I have made hundreds if not thousands of moulds for making duplicate patterns over the years that are just like those moulds. They are not finished around the outside because they are just for use inside the pattern shop for likely a one time use. Quote Link to comment Share on other sites More sharing options...
eaglegear Posted May 30, 2016 Share Posted May 30, 2016 I would offer to pay $500 for the wooden pieces. You can use the styro to ship them to my house. Serious here, as I make my own anvils, but mine are all in the size range up to 100 pounds, S7 face forge welded using proprietary secret methods at my local foundry. Quote Link to comment Share on other sites More sharing options...
Judson Yaggy Posted May 30, 2016 Share Posted May 30, 2016 Eaglegear, that sounds pretty cool. Got any pics of finished product (or any of the process you'd be willing to share?) Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.