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Alex Roy

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About Alex Roy

  • Birthday 11/11/1987

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  • Gender
  • Location
    Manchester N.H
  • Interests
    Welding (TIG/Stick), Woodworking, Brazilian Portuguese, Poetry, Women & Food. (Do I really need to say bladesmithing?)

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  1. Alright guys, I am about to purchase a rebuilt 10 HP single phase Baldor, 1750 RPM. I am going with a single stage pump. My question for you guys is: Should I try to maximize the linear speed of the ram at the cost of hydraulic force? My calculations show that I can develop 20 tons of force at 2000 PSI (5 inch cylinder), moving at 1.41 inches per second. I could also run at 25 tons of force at 2500 PSI, moving at 1.18 inches per second. I am still doing calculations to determine if the increase in ram speed will offset the heat conduction from a larger force with a slower ram.
  2. I am considering on going with a single stage pump to keep heat in the billet longer. The filter is a must, I agree. I am probably gonna stick with a 5 in cylinder. As far as the quick change design, I will work on that. I can calculate thermal expansion and work it into the design as well. I plan on doing a lot of design iterations, as it pretty standard. I am feeling like I will likely go with an H frame because I want to maximize rigidity. Also I plan on building in adjustments into the ram guides and so and movement can be rectified easily. I'm gonna work Statics, Dynamics,
  3. For entertainment purposes I am working on a press design but would like to get some info from people who use them. I will not be building this for some time, but I have plenty of fabrication and design experience. First I keep reading that the linear speed of the piston should be atleast 1 inch per second. What would be optimal, since I am designing the press from the ground up I have total control over the feed rate, force and pressure. Would 2.15 inch per second be good or would faster be better. I understand that the faster it feeds, the less the steel will cool from die contact
  4. Hey guys, I have not posted for a few years and am actually looking for help with a non knife related topic. I've got a summer internship at a university and I was asked to do the heat treatment for some A2 triangular parts. The parts will need to have pretty close tolerances and I know that A2 has high dimensional stability in heat treatment and that is mills relatively well in anneal condition. So that is the material we are working with. My question to everyone is how would you go about minimizing decarb? The parts will be roughly 1.25 X 2 inches. They will be hardened
  5. I would greatly appreciate pictures and measurements of the clutch, thank you.
  6. I'm gonna be taking machine design and for a project I'd like to be making a pseudo replica of a #4 Beaudry Champion, likely 1/4 scale. I'm having a difficult time finding good images of the clutch mechanism. If anyone know where to look or who to talk to, that would be a great help.
  7. I'm building a KMG clone and I'd like to know what people have for a crown in both there Idle pulley and drive pulley. If anyone could measure or let me know what the amount of crown the pulleys have. Thank you.
  8. Being the fact that Iron (steel in this case) is Allotropic. I am aware that there is a sudden release of energy during the transformation from one lattice structure to another. My interest is that I would like to find a video of the visual increase/ decrease in light being emitted from a piece of steel when it changes from BCC to FCC. Also, if anyone could tell me the technical term for this emitting of light during the transformation, that would be very helpful. Sorry for my long winded appeal for help. Long and the short of it is, if anyone could send me a link of the transformation
  9. Hey guys, havent posted in a while. I had surgery on my right arm and it still has not improved. But I've decided Im going to just do stock removal in the time being. So my question for all of you is, what do you prefer as a good, rugged steel, A-2 or D-2. I have selected these too for thier reputation for good edge retention, and the fact that they are easily air hardened. Secondly, since I do not have to hit it with a hammer, I figured I'd work with a richer alloy. So opinions and ideas would be greatly appreciated Thank You. Secondly, I was wondering where
  10. I like the general overview he did and the way he speaks plainly, doesnt try to jazz it up. Very elegent, simple and useful blades.
  11. The whole phosphorus adding thing was rather back asswards. But it was mildly entertaining and yes, the narrator was a complete fool. Thanks Alan
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