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Found 24 results

  1. Food Safe Bronze?

    This is my first post, which I hate to make a series of questions but the deed is done. I'll try to find a place to be helpful, but I am pretty knew to this so I don't know where that would be. I also do not know if this is the correct place to pose a question, if it is not I apologize and ask I be told the correct place. I would absolutely love to make cast iron cook wear, but that seems to be very outside the realm of possibility for my self at the moment. I really want a nice solid skillet that wasn't purchased from lodge. So I was thinking about casting bronze cook wear. I have seen videos and read stories of people doing it but they don't seem to get into the safety side of cooking with bronze. So does anyone have any Idea how to make cooksafe bonze? Or if that is even a thing? Information on the subject is very limited. The only safety tip I can find for cooking with bronze is don't cook acidic foods for the same reason you shouldn't do it with copper cook wear, not much more info than that though. I mainly need an idea for a source of leadfree tin, or just a source of tin. On a related note what about crucibles. I found recipes for fireclay crucibles, which I know are cheap and will crack after a few heats, but will it work for this? I would rather have to make a crucible over and over than buy an expensive one and always fear it will crack and Ill be out the money. As I said, cast iron is a long way off, but out of curiosity where does one find iron? All I can ever find is mild or hard steel, I don't think I have ever seen purchasable iron, even if it was labeled as iron it turned out to be just very low carbon steel. I can post pictures of my forge set up if needed, it's pretty ugly though so Ill refrain unless it is needed. Totally unrelated to this post, as this is my first post I have no idea what the tag system is so I made some up that I figured might exist. Is there a list somewhere? I looked but did not see one, granted I didn't look very hard. Oh and if you don't know an answer to my question, but know of a resource that may contain the information I seek I would love to hear about it.
  2. So i'm trying to make a mould of an old axe head i have (which i believe is viking inspired) to bronze cast as a gift. I use green sand to make my mould so my problem is that i can't get a mould to keep the gap in the axe-head. The only idea i have come up with is putting a steel rod made into the shape of the gap and putting it into the mould but i would prefer an alternative as this would take a lot of time and i don't think i have the proper tools. If anyone can come up with an alternative way i would appreciate it.
  3. Pyrolized Bread Metal Casting Foundry Well earlier today I found this video posted yesterday by one of the guys I subscribe to on YouTube. He isn't the most safety conscious person, but he is an experienced machinist. The entire set up should of been outside, but its his house right? Its an interesting concept and he understands it and enjoys nerding out on the scientific to those of us who are not as, well you know...
  4. Aluminium Fails

    Hey guys I made a video about casting aluminum and when I poured the molten metal into a mold I made, it started to bubble. Why does it do that?
  5. Greensand Mold Lifespan

    I have a question concerning the longevity of a greensand mold, specifically what is the maximum time period I can make them in advance of casting before they begin to crumble? I am taking a metal working class at my local university and, due to time constraints, I only have 1 class left and I am worried that I am not going to be able to cast my bronze projects. It occurred to me that I could make my molds at home and then cast them at my last class, but I am concerned about the molds drying out beforehand; could I coat the outside in parting dust and plug the risers to prevent dry out? Thanks for any help.
  6. Hello, I am an acupuncturist who goes through a good quantity of surgical stainless steel needles, likely 316 or 304? Currently I have to send these needles as biohazard material to a certified waste disposal company. I am looking for ideas on how I could possibly repurpose this material for potential art projects. I understand that SS is difficult to melt, so casting may not be an option. I also understand that any use of this material would have to include sterilization because of the biohazard nature of the waste. My initial thought was that melting the needle would take care of that aspect, but the more I read about SS, melting does not seem like a great option. I would appreciate any idea that you may have. I kind of tripped into this forum, so maybe I am not in the right place. I also have zero experience with metal work, so I do ask for patience. Thank you so much.
  7. Beginner caster

    Hello all, I am a new member and this is my first post. I just wanted to share my first few backyard metal casting projects, all of the pics posted are with rough sanding/grinding only, I hope to take some new pictures of the finished products soon. I have found a lot of very helpful information on this site and would like to pass on my thanks to all the experienced members who have taken time to post tutorials for us newbies. So far I have learned that I can do this and that I am more handy than I thought, but that each project comes out a bit different than what is in my head, and that each one has it's own lessons to learn from and take to the next project. 1. very first project, learned to make sure the casting molds are the right size for the amount of metal your crucible can fit, both were intended to have integrated stands but did I not have enough aluminum to cast the stand. 2. couple of ingots, made an aluminum bronze by melting copper into the crucible that still had some aluminum left over from a previous pour (unintentional but I like the result and may make a small bronze decorative knife blade from this ingot) 3. A present for my wife (the heart with our anniversary date) and a mother's day gift for my mom (who is a Disney Fanatic). 4. Rough sand on my F-22 profile desk sculpture (since sanded to a nice smooth finish) 5. Bathroom towel rack (this is a finished product, both my wife and I like an industrial unfinished look for our house's style) 6. towel rack in use 7. first attempt at a copper axed head, rough finish for now. I plan on mounting on a dark stained custom wood handle.
  8. Hello fellow metal workers, I have some questions regarding making aluminum tank tracks for a robotics project. The tank tracks are 4.25" wide x 5/8" tall (length TBD) they are made up similar to the way an Abrams tank track is put together. I found a metal works company who specializes in turning small 6061 aluminum - rubber coated wheels and though expensive they can produce what I'm looking for. So now I'm back to the tank tread portion which I'll probably make myself. My experience: 10+years experience with TIG welding/fabrication and can weld most things. Many years ago I read a book on backyard metal casting because I wanted to cast aluminum tank treads. Back then the guy was using a Pyramid furnace (the company is no longer in business) to cast aluminum tracks. So here I am wanting to pioneer this venture again with many questions. After reading the beginner pinned thread and all the safety precautions, Aluminum casting seems a little scary/intimidating as well as an enormous investment of time to learn a whole new universe of skills and the safety surrounding them. Therefore I've come to these questions which I hope others can help me answer. A:) Would a furnace produce acceptable enough results in fit and finish for this type of application? (or am I better off in fabrication?) B:) How much cost investment is there in buying a high quality furnace, crucible and safety gear? C:) Roughly how much time investment is there in learning to cast small aluminum parts? D:) What is the mold material needed? E:) Are there any up to date extensive youtube videos or good book recommends specifically for casting aluminum. I have concerns with doing it safely as well making sure the mold is built correctly. Additional massive concerns about what the results will be after I Invest huge amounts of time and money in it. Will the results be good enough for this use? And more importantly will they be better than a machined/welded/fabricated alternative. In other words: Which route is shorter and produces the best results? I'll attach some drawing and pics of what I'm trying to manufacture. Thank you, Av
  9. I am taking a metalworking class at my local university and am planning, amongst other things, casting two jewelry boxes, one for each of my daughters. I'm planning on making them out of mild bronze, and they will be approximately 7 inches long by 3 inches wide by 3 inches deep. Should I cast the individual plates and later weld them together, or can something this size simply be casted in two pieces, namely the box and the lid? Would it make more sense to simply cast ingots and beat them into plates? Thanks for any help! (Attached is an image of the basic design I am going to attempt to recreate.)
  10. Propane tank foundry

    Is it safe to cut into a brand new empty propane tank to make a foundry? It was bought without ever being filled, so am I guaranteed I won't blow up or should I still remove the valve?
  11. brass casting

    I'm not sure if this is the right place to post this but I've got some questions on casting brass. I was given all this brass for free and was wondering if I could cut it into smaller chunks and melt it down and pour it into brass hammer molds. Or if there are other things I can do with them. Now for those of you who know about bushings how they have those ones that have graphite in them theses ones are not all of these are solid graphite free inch thick brass bushings. Each one ways 50lb so if any one knows if this can be done please let me know also they are out of a turbine of some sort. the one with my hand on it is a quarter of one of the bushings which would be the one with the big chuck gone. there are not cracks in them they are cuts made by a cutting wheel. the bushing are not cast either
  12. tilting furnace plans?

    It was suggested by someone I trust that my next furnace (to cast a minimum of 50#) a pour should be a tilting one - I agree - I have a 21" diameter compressor tank to make that and my muller - but looking for plans. Chastain has a book but cant find a copy - they want $700+ on Amazon for it. and as much as $2k! anyone have any designs they can share? Thanks.
  13. IMG 20140927 210338 412

    This is a 5" x 7" clay plaque pattern I made for a bronze casting class I'm taking. I like working with hot metal lots better to get shapes I want.
  14. Hi! I started my smithing/smelting adventure not long ago. I've built a furnace, melt some alluminium, poured it into my clay cast, let it cool down (and used water to make the process faster). Then I wanted to make a sword out of it (as it was just a base stick cast). I heated it up, hit it with a hammer and... it just cracked. Later I discovered that I can even tear my casted metal pieces apart with my bare hands... Please tell me guys, what am I doing wrong?
  15. furnace2

    Heh heh.....my new casting furnace works GREAT. Steel crucible on the other hand..............
  16. furnace1

    Heh heh.....my new casting furnace works GREAT. Steel crucible on the other hand..............
  17. Learning Lost Wax Casting

    I'm interested in getting started in casting, and I intend to do primarily investment / lost wax casting, for things like blade fittings/pommels, scabbard fittings, buckles, and really anything else I feel like casting. Online sources are good, but what I'm looking for are recommendations on books for learning what I need to know to get started in lost wax casting. I intend to build a waste oil furnace like this one: http://www.artfulbodgermetalcasting.com/2.html for melting the metal. Dan Manders recommended a book for lost wax, but it seems to be a little hard to find. I also found this one on amazon: http://www.amazon.com/Practical-Casting-Reference-Revised-Edition/dp/096159845X/ref=pd_sim_sbs_b_1 Does anyone know if it's any good? I also realize I need a kiln if I'm going to do lost wax, so I did a search on the local craigslist, and here is what I found: http://grandrapids.craigslist.org/art/2915998885.html Is this a good deal for this type of kiln? I figure if I do get it, I should be able to use it for heat treating as well.
  18. melting copper

    i have a fair bit of copper pipe and wire, as well as some bars, with cold shuts in the sides and i am planning to melt it all down, how should i go about this? i am planning to make a trough of angle iron with the ends welded up, will this work? are there fluxes needed? many thanks monty