Jump to content
I Forge Iron

Ed Thomas

Members
  • Posts

    597
  • Joined

  • Last visited

Posts posted by Ed Thomas

  1. Hmmm... the inserts are fine for spindle turning and scraping, but in my limited experience, I haven't seen them used as replacements for gouges. Seems like it would be more trouble to shape an insert for gouging than to machine or forge a gouge from M-2 and heat treat it. However, here is a link to the premier site for turning, where you might get more help if you are really interested:

    The American Association of Woodturners homepage

  2. Concur with Finnr. Have him buy the real tools. No, S-7 and A-1 are not the right tools for wood turning. I've made turning tools from M-2 for myself. The heat-treating to optimize it is a rather involved cycle and requires a heat-treating oven. Many of the better turning tools are now M-42. Wood turning tools are subject to fairly high heats; the sort that takes high-speed steel to retain a sharp edge with the high friction, rather than alloys such as the S-7 which are designed to take shock.

    It is unlikely that you will be able to improve on what your friend already has without some experience in heat-treating, and some time on the lathe to get a feel for what is expected of the tools.

    Now if you have some bars of M-2 and wanted to do this for yourself, I'd strongly encourage you to try it. But someone else is not likely to be happy with your results.

  3. Glenn: Thanks. The pictures were actually much darker in the original. I'd already cleaned them up a good bit. My son is experimenting with his new camera, so was having trouble with lighting. By the time I got these pictures in my computer, he had already gone back home so I couldn't get him to take more.

    Hollis: I dunno bout movies. I have a hard enough time taking regular pitchers. :)

    Jmercier: Hammers and presses do different things. I think that a hammer is more useful most of the time. This Beaudry is my second (functioning) hammer. You will really enjoy having one once you build or buy a power hammer. Good luck.

    Ted: Don't I know it! I can't get over how nice this machine is finally.

    Bill: Thanks. Now that the hammer is finally running, I can get BACK to hammering. :)

  4. Hmmm... somebody has been playing with my post... and brought my pictures to the gallery. Thanks, Glenn. :)

    Hollis, this hammer is SO graceful compared to my other one, which needs a serious overhaul. Despite being twice the weight, it is far easier to use tooling under it, and its responsiveness is really impressive. Having a good brake helps a lot. I'll have to climb up to the "power plant" :) to take pictures sometime. I'm using a 7.5 hp single phase motor. A 5 hp would be more than sufficient, but the extra hp means it doesn't bog down at all when engaging the belt.

    Once again, thanks for your help over the years in learning the Beaudry and figuring out how to repair and set this one up.

    Right now, I'm starting on some bolt on dies. You can't see them in the pictures, but I put 1/2" bolt holes in the dies. Now I wish I'd gone larger, but too late now. The classic clamp arrangement works fine for bottom tooling, but is impractical for a top tool. So I'm going to try a pair of bolt-on combination dies.

  5. Hollis asked me to post evidence when I finally got the #7 Beaudry hammer running. Here's the proof.

    Beaudry Full View
    Beaudry Black & White
    Beaudry Closer View

    The #7 is the 200 pound hammer. It is remarkably well-behaved and smooth, as a good Beaudry always is. The piece being forged is a large truck leaf spring that was just a tad too wide to use as the tool bracket. It was quicker and easier to forge it down to the right height than to machine it. The bracket is now made and is used to hold tooling, either by clamping or with a hardie shank ala Clifton Ralph.

    The dies were the last major part of the rebuild. A previous owner had run it without a bottom die, right into the sow block. I should have taken pictures of how mangled it was. That repair was very tedious, involving many, many hours of grinding, filing and fitting. The dies have a 4.5" x 8" face and are made of S-7. The bottom die is slightly taller than upper die to compensate for the lost metal of the sow block and probably weighs about 40 pounds.

    2136.attach

    2137.attach

    2138.attach

  6. Hollis: It shouldn't be long. I can actually see the end! The brake material came from McMaster Carr. It's been so long since I ordered it, I actually don't know which material I chose, but I'm fairly certain it is the non-metallic stuff... look at item# 6175K136 (1/4" x 2") $6.14 per foot. I used their contact cement. I alsoused that to hold the replacement sleeve for the hammer guide, but don't know yet how it will hold up. I will say that having a new brake pad is amazing. That flywheel stops on a dime. I'm running out of dimes proving it.

  7. Hollis: The dies are made from S-7. H-13 would probably be an easier heat-treat, but I got a pretty good deal on the steel.

    In this case, I don't think anybody used a plate or anything, because you could plainly match the destruction pattern in the sow block with the outline of the top die. My guess is that it was just used to mash and bend things cold.

  8. Thomas Powers: Old machinery is still available quite cheaply, as long as you are willing to take stuff that is too large for the weekend 1-car garage tinkerer. The only reason manual machines are starting to get a little more scarce is because scrap prices have gone up enough to make it more worth loading and hauling. With disturbing frequency, the scrap price is higher than anyone is willing to pay for the machines. I got several of mine below scrap prices from people whol couldn't bear the idea of them being melted down and were actually grateful to pass them on to someone who intended to use them.

  9. Hollis: The #7 Beaudry is almost finished. I've been saying that for awhile, but today I put the brake pad on and did some final marking for the dies. The only major item left is to heat treat the dies, which is a bit scary because I have so much work in them. I have a pretty nice roomy electric heat treating oven, which I got from an auction for just over $300. It already proved its worth in treating the replacement roller bearing that was bad. I've been making a lot of tooth picks from 2" x 4"s as I do all the adjustments and test the die fitting.

    You might remember that the sow block on this hammer was completely buggered up. A previous owner had run it with only a top die... no bottom die! I have no idea what they were doing with the hammer, but it seriously tortured the casting underneath. I had to grind and file over an inch of the block away, and then painstakingly file in the dovetail. If I could have gotten the sow block off, it would have made it a thousand times easier... just shape it up on the Steptoe. But that wasn't happening.

    I should have been done years ago, but it never seemed a high priority while the smaller Beaudry was available. But that one is REALLY tired and needs overhauled so I need to quit goofing off and finish the #7... which is a much better machine anyway.

    Sorry I didn't answer your question sooner... somehow I missed it!
    Ed

  10. If you like working with metal, it is all one. You can form an object by removing what isn't that object from the original piece (machining), by building it up in sections (welding), by compression (forging), by molding (casting), or any combinations of any these. They all have their place. The point is to look at what you want as the finished object, and select the tools and methods that accomplish that the best. NOT what you are most comfortable doing, but which is the most appropriate. Then you will choose to learn the skills as you need them.

    Of particular interest to me is that old, fairly large machinery for machining is MUCH cheaper than old large machinery for forging. Supply and demand, of course. For less than the price of one Beaudry power hammer, I have two lathes, two milling machines, and two shapers with oodles of tooling.

    Machining tools are a big help in a forging shop. I just got done making my larger Beaudry dies using my 16" Steptoe shaper which cost me $100. I made a replacement roller bearing for it using a 13" x 8' 1911 Southbend lathe I got basically for free. Both the 3 hp Gorton vertical mill and small Hardinge horizontal mill have paid for themselves many times in doing odd jobs related to projects, but neither one was very expensive.

    I have no formal training as a machinist. That means I ask a lot of questions of machinists and read a lot of books. And I take my time, practicing with focus. It's worth it.

    I only have limited formal training in welding. That means I ask a lot of question of professional welders and read a lot of books. And I take my time, practicing with focus. It's worth it.

    I have lots of training in blacksmithing. That means I ask a lot of questions of other professional blacksmiths and read a lot of books. And I take my time, practicing with focus. It's worth it.

    It's all good.

  11. Dennis: It's all about the puddle. One of the advantages to learning gas welding, in my opinion, is that things move more slowly than electric welding, and you can watch the behavior of the steel as is goes from solid to plastic to liquid, which can help someone learning to forge-weld. So I guess, though it is a stretch, that this is an appropriate question in the blacksmithing forum. :)

    Here are a few links:
    http://www.metalwebnews.com/howto/gtwelding.html
    http://www.bikewebsite.com/weld.htm
    Oxy-Acetylene Welding and Cutting by Harold P. Manly - Project Gutenberg
    Welcome to the Manufacturing Forum: oxy-acteylene welding filler

    To successfully weld, the metal MUST be joined in the puddle. If it is all blobbing up an you, then you might not be actually melting the pieces. Use the filler rod very sparingly. Sometimes, you don't even need a rod. In any case, the two pieces should be molten and THEN the filler rod is melted into the existing puddle. If you don't have the parent metal hot enough, when you approach the flame with the filler rod, it will melt in a blob and stick like a bugger on the pieces without actually fusing anything.

    Try welding some practice coupons using different tips and angles and pressures till it starts to feel right.

  12. Jim: It sounds like you are dealing with relatively small stuff, so you might consider a Porta-band, or similar portable bandsaw. After I got my Milwaukee portaband, I couldn't imagine life without it. Porter Cable is probably pretty decent also. They are expensive, but well worth it.

    I actually had fairly good luck with the small Harbor Freight bandsaw. I bought it used from somebody for something like $30 and used it for years. When I bought a bigger saw, I just passed it on to another blacksmith who is still using it troublefree.

    No, don't use an abrasive cutoff wheel in a handheld drill. There are all sorts of reasons not to:
    1) Abrasives are bad. Drills aren't usually made expecting to live in a grit environment.
    2) Drills are made to be loaded inline with the chuck, not loaded perpendicular. You can wear a drill out fairly quickly loading it from the side.
    3) The disks are made to cut at high speed. At lower speeds, the abrasive grit can clog and load up rather than wear away as it is supposed to do.
    4) The shape of a typical hand drill does not give very good control of a disk the way a typical hand grinder does.
    5) Disk grinders are not very expensive; pretty much the same as portable drills.

    Either way, I MUCH prefer to use a bandsaw over a grinder whenever possible. The noise is less and the cut is better.

  13. irnsgrn:

    Yes, I see those plates you referenced, and the description. Thank you for the direction. Despite frequently recommending those books, I often forget how good they are.

    I don't use what I call a set tool as a shear under the power hammer, since I typically use a snapper for that, although the shape of a snapper is really just a narrow set tool, I guess.

  14. CC: Try contacting the BGOP using the link I posted earlier. You should get help pretty quickly. I'll email some BGOP folks I know and see if I can find someone near you, in case you don't get good help.

    If you can wait that long, the BGOP Spring Fling is the 3rd weekend in April. There you can watch a Colonial Williamsburg demonstration, or else George Dixon who was the head blacksmith of the Yellin shop in Philadelphia some years ago. George would probably know more than anyone about the era you want specifically in Philadelphia. It will be held near you in Berryville VA, and is an extraordinary event for your money.

    Here is the link to information about the Spring Fling:
    Blacksmiths' Guild of the Potomac
    You have to pre-register... there is no walk-in attendance.

    I concur strongly with the recommendations to participate in some forging. There is no substitute for feeling it in order to write about it.

  15. irnsgrn: In most cases, the tool under the power hammer is called the same thing as it would be if hand struck. I have never heard a fuller called a side set, because a set tool of any sort is an entirely different tool than a fullering tool.

    In the "Open Die Forging Manual", published by the Forging Industry Asssociation, on page 72 , they have a clear description: "For the production of shafting, the forgesmith will require ... fullering bars to initiate setdowns or changes in section of the forging" On page 73, is an illustration of the various tooling, including the described fullering tool. I could find no mention of a "side set" to do the same or similar job, nor have I ever heard any power hammer user call a fullering tool a side set tool.

  16. CC: There is a temptation to think of all American blacksmithing as primitive utilitarian stuff. Nothing could be further from the truth in the high population centers such as Philadelphia. Check out the Dover book: "Colonial Ironwork in Old Philadelphia" ISBN 0-486-40300-9 to see stuff that would be tough for many blacksmiths to be able to do today. As Irnsrgn noted, some of the better large city blacksmiths would have been highly skilled artisans trained in the best European tradition to do ornamental architectural ironwork and high-quality domestic wares.

    For the best contacts in your area, use the Blacksmith Guild of the Potomac (BGOP). Their web page is:
    http://www.bgop.org/

    There are several blacksmiths that live there in Alexandria who will be more than happy to hook you up with a demo, and take you to their guild meetings. If you have any trouble, post here again and I'll put you in touch with specific people there.

  17. Jeff: Here are some ideas that may help...

    1) Don't slit. Use a slot punch. Using the circumference of a hole, you can figure the circumference of a punch. For instance, the circumference of a 1/2" hole is pi * 1/2", or about 1.5". Use a slot punch that has that same circumference. So the circumference of a 1/8" wide slot punch would then be 1/8" + 1/8" + 5/8" + 5/8". In other words, use a 5/8" slot punch that is 1/8" thick. Instead of drifting the hole open, upset it to open. Only use the drift to bring it to final dimension.

    2) The amount of material movement to do this can be calculated, but it is easier to just do a test piece. If you carefully mark the location of the slot punch with a center punch, and make very sure you have the slot punch right, the holes MUST form the same way each time. Measure the test piece before you punch, upset, and drift. Measure the distance between the holes before you make them. And then measure how much they move the material after you do the forging. If you do the same thing each time, the real pieces will inevitably move just as the test piece. Generally, a slot/upset/drift will make the material slightly shorter.

    3) CENTER the slot punch very carefully and hit gently for the first blow or two until you are sure you are right in the middle. Make sure you have a completely even heat or the punch will wander to the hotter side even if you are centered.

    4) When you open the hole by upsetting, make sure you evenly heat the hole. The hotter side will give first and you can wind up deforming the hole too badly to use if you don't correct early.

    5) These are FORGED pickets. That means once you have the holes done this way, they should be very close. All you have to do is stretch or upset each picket somewhere other than the holes to bring them into near perfect alignment and length.

  18. Ron: I don't know what you call it... maybe DOGGONIT :)

    But, yes, S-7 falls apart at too high a heat, and is very difficult to forge below orange. That doesn't leave much room. If you look here:

    Diehl Steel - S-7 Air Hardening tool Steel

    you can see that the recommended forging temperature range is only 150 degrees. In other words, it's probably better if you are starting with a piece fairly close to the dimensions you want or you will wear yourself out.

  19. Thomas: I just saw oxy/propylene which seems even better than propane for performance. The specs support that. All that is required to change from acetylene is to change the actual tips; even the gage and hose can remain the same. I think propylene is less of an oxygen hog than propane.

    Since I have 3 large O2 bottles and only one medium acetylene, I might check into this. Not to hijack the thread too much -- does anybody here have any experience with propylene?

    I definitely agree with you about buying a used 225. They simply don't die. I see them at auctions all the time. I saw two of them for sale at the last SOFA Quad State for about $100. I really like my Miller 185 MIG welder, but I still think the tombstone is more versatile at a fraction of the cost. For small shop/home use, it simply can't be beat for price. They are everywhere. Mine came from a farm auction and it is does seem slightly better built than newer ones I've used (and repaired).

    The important thing to remember is that our answers in this section are for help in supporting your blacksmithing habit, and are not advice to start you on the road to being a professional welder. All bets are off if you leave the smithy with our suggestions! :)

×
×
  • Create New...