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Found 11 results

  1. I had a thought about practicing certain techniques and hammer methods on soft metals such as aluminium as a way of not using the useful steel for simple practice pieces. Simply using soft metals to mimic hot iron in how it would move as a way to see how to move metal, but because hot steel would react differantly I don’t knkw if this is a very good idea for anything more than basic hammer technique Is this an idea that could work?
  2. So, I have some duralumin laying around and I decided to use it for the base of my forge (where the charcoal where be placed on). But I heard people say that aluminium releases toxic gases, is it safe to use duralumin, or should I change to something else? I also know that aluminium has a relatively low melting point compared to other metals, do you think that it would be able to withstand the heat?
  3. Hello all, i've done a load of research into making a foundry, I've gone the way of the LPG tank lined with a heat resistant cement. However when i go to buy the cement i get blown away by the sheer variety of products i can buy. I wanted an expert opinion on two products: http://www.morganthermalceramics.com/sites/default/files/datasheets/1_alumor_60.pdfo- and http://www.morganthermalceramics.com/sites/default/files/datasheets/1_alcast_super.pdf The choice is between the Alcast_super which is a castable with max temp. of 1300c and the Alumor_60 which has a service temp of 1650c. I am going to be splitting titanium in a molten salt electrolyte using the Metalysis FFC cambridge process, melting aluminium for casting, melting lead, melting various scrap copper/bronze. What castable would you choose/recommend? Do i need separate crucibles for different metals or can i re-use one safely? extra info: coke/coal powered furnace, 5cm thick insulation probably, air forced.
  4. I have been making a decorative knife out of 1018 cold roll steel. Because my mill is currently unusable, I cannot make the crossbar out of steel (the design is too complicated for other tools). I decided that casting it out of aluminium would be the next best option. However, steel and aluminium together create a risk of galvanic corrosion. After some research, it seems the best solution would be to use aluminium 2017, 2024, or 2117, since it is very close to 1018 on the galvanic series. I also plan to insulate the two metals with rubber. My question: Will this stop the corrosion?
  5. What is the best method to make an aluminium tube of 13 OD,280 length and having a reduced cross section at one end? One 'piece' of the foldable cane used by blind people for example
  6. hi guys, i'm new here and would like to confirm a few doubts :) -firstly, exactly how strong is aluminium? i've done my homework and found that it had a brinells modulus of 245Mpa and tensile modulus of 70Gpa. the problem is that i am not sure how hard it actually is. could someone give me a comparison and description of it? thanks! really appreciate it!