Induction Heating, Oil forges, etc

Hi all. If this topic have already been covered then i will be most thankful for a link. I want to build an electric furnace, Both for heat treatments and for pottery. I have a given dimensions and i need to figure out what size and resistance coil i need. There are lots of calculators out there but they all "attack" the problem on a different angle then the one i want. Basically my problem is this: I have a space that i need to heat (the inner space of the furnace) but i have no idea how long of a coil i need. More then that, i do not know how many watts i need to heat the space in a reasonable time. When i'm building a gas forge i …

Hey guys, My dad and I are working on putting together a waste oil forge just to get started as we have most of the pieces needed and plenty of fuel already available. We know the dangers the products created by burning it, and are planning on using the forge outside for now. My main concern is the lining. Our current plan is to have 2" of kaowool and 1" refractory as the base, and 1 1/2" kaowool and 1/2" refractory in the upper shell. The more i'm thinking about it, the more I'm thinking we might need 1" of refractory in the shell. Our burner is going to be mounted into the side of the forge, so instead of blasting the floor, it'll be aimed at the opposite wall. Act…

Hi I’m young blacksmith who is trying to move beyond charcoal, and I have been looking into fule-less forge ideas and I stumbled upon the carbon arc furnace from King of Random and I was wondering if the design was altered if it could work for forging the rough design is below

I'm just about to make some more coils for my induction forge. Actually, I'm going to make a triple coil, with three different sizes. Other than the issue of the coils sticking out farther and perhaps needing some support, I can't find any reason why I can't have multiple loops on one assembly as long as I'm only using one at a time. In order to make this coil, I am using 5/16" refrigerator tubing using the adapter nuts I got from Mettle Works. The machine comes with flare nuts in a metric size, and these allow me to use regularly-available inch sizes. However, I've noticed that my existing coils use a larger size tube (like the meteric version of 5/16") but then hav…

Im a total newbie to forging so here is the first dumb question, I have ran the search multiple ways, but Im not getting answers, probably asking the wrong questions. I have been doing reading for a few days here and am wondering about using a beckett burner and diesel fuel on a forge. they have changeable jets and the fan is already in place and can be set up to hold a temperature . I have a hot water washer that has a 2.5 per hour diesel nozzle in it and it gets with the program. or is there something with the fuel that ruins the steel to much or something? I guess the oxygen level in the forge could not be adjusted very easily. I dont want to mess with waste oil be…

I've written the US distributor. Anyone have any reviews, comments, thoughts? I seem to remember someone here saying they had one of these induction machines.

I will design an induction furnace of 2kw of power that will be able to reach 1000 or 1100 degrees Celsius, it will be cheap and easy to use for the user, it will be able to heat all type of metals, as long as they are small pieces, and will have the possibility of Control power. I have been reviewing and studying many home projects as well as thesis on induction furnaces and although I do not understand everything completely I think it is time to move to the experimental part.

I've wanted to have an induction forge for some time, and had been saving money but they are quite expensive and something always came up: a motorcycle, a classic car, two kids..... It never seemed like I could get the wad of cash together to buy the forge. Following Eric Jergensen's lead, I decided to buy an induction forge direct from a Chinese supplier. I ordered it in early April, and just used it to test heat metal today. More to come, but I'm pretty excited. I still have a way to go to get it fully set up and ready to use, but the main obstacles have been overcome.

Just wondering what sort of outputs people have achieved with their oil burners output wise? I know max heat/ flame isn't a big deal in a furnace but wondering what the BIGGEST burners are capeable of? Might be fun to have something that would heat a shed up in a few min or use as a yard heater for parties in winter.

Everyone's favorite 15 kW induction heater has gotten pretty well priced nowadays. Considering how much equipment like anvils cost right now, it's quite reasonable! The one thing about it that I dislike is having to make coils for oddly shaped workpieces. I found something interesting when I was searching; Ambrell for their induction heaters makes a flexible coil you can wrap around whatever you want. See here for details: http://www.forgingmagazine.com/heating/flexible-induction-coil Does anyone have any idea how they do that? I've seen some really long flexible coils used with Chinese air-cooled induction machines, but nothing for water cooling (is that even p…

This you tube video has been removed by the user. look around 3:40 this is what got me thinking would a similar setup be able to produce a workable forge? perhaps a homemade one instead of this expensive industrial grade monstrosity. it looks as is this gas might be plausible for a gas type forge fuel. it seems the same process used to make charcoal would produce this gas and then you could use the same wood to make fuel for a solid fuel forge and a gasser at the same time.

In one of his latest YouTube videos (seen here), Torbjörn Åhman makes an oil-fired forge using an old burner from a residential furnace. Has anyone here had experience with doing something similar?

Over the years, I have shot many videos of blacksmiths beating on hot iron and I have seen a lot of 'em, too. But, what the camera sees and what I see with the naked eye aren't even close, as relates to the glowing color of the material being worked. Is it just me? I think not. There are many reasons why this disparity can be an issue. The main problem, as I see it. is that beginning blacksmiths won't realize this problem. To them, the smith appears to be: -taking the iron out of the fire at a completely white heat and then; -beating on it for a really long time while the metal seems to stay bright red forever! When, in actuality (viewed …

I am familiar with most of the basics for bladesmithing and have made a few knives successfully. I am taking on a project of making a kitchen knife set for a friend's wedding. I am limited by time since the wedding is at the beginning of June. I currently have a coal/charcoal forge, and I have a gas burner that I need to fix since it isnt heating the forge properly(or maybe i just need to make a new forge body?) I would be fine investing some money into an electric oven that could temper and heat-treat the knives, especially since I will be doing stock removal for the knives to save on time and avoid warping. I figured an electric oven would be efficent as far as time go…

I need to harden and temper carbon steel on induction furnace. The one i have is high frequency induction transformer. The coil i made for it doesnt work and gets tripped indicating high frequency. what is the diff. b/w medium fr. and high fr. inductions ? and why does it trips ?

Hello, I was here a few years ago, with a short-lived hobby of bladesmithing. I have been toying around with electrons since then, and electronics might be bringing me back around to bladesmithing. I have taken an interest in induction heaters, in part from the youtube videos posted by imsoother (who I find is on this forum). I am considering making one, but I want to know how cost effective it is (the forging, not the forge). I was using a coal forge before (still have the forge and the coal) - and I figured there has to be someone on this forum who's used a coal forge and an induction forge and made comparison in dollars for KWH VS. lbs of coal. looking for perspectiv…

Hello everyone I have been throwing around the idea of a used oil forge or a diesel forge design. Now I know there are many threads on the idea but hear me out. I'm totally new to the idea of liquid fuel forges and hAve no idea where to start. I have all the tools and such needed to build one but I just need some starter or a how to oil forge for dummies ideas or pages to look at. Simple plans would be nice Thanks

Check out my article in the February, 2016 newsletter for a review of an induction heater. There is also a youtube video to go with it.

Will this concept work? I plan on using waste oil, rotary drum pump, 1/2" tubing, and a brass mister head, along with a conventional propane burner Venturi body.

I have always wanted an induction forge but I don't know how to build one and I cant afford to buy one because they seem very expensive. I saw this video on youtube, its a modified transformer which is used for heating metal. This guy only used it to heat small bits of metal but I'm wondering if it can be used to heat larger bars of steel. Does anyone have an opinion on this?

I have been playing with a WVO fueled Burner in a pile of bricks as a furnace. Had a bit of a disaster when I went to melt some aluminium and burned through the steel crucible in about 4 minutes.

Well I finally got around to joining the induction club. I need to make some smaller and larger coils than came with the machine which is about 1.5" id I bought 1/4" and 3/16 copper but it looks like I should have got 5/16 instead of the 1/4" That being said has anyone tried quick connect fittings like these on their induction unit ?http://www.wattscanada.ca/pages/whatsnew/qc_fittings.asp They look like they would work well both as quicker to change not needing to flare the pipe and not needing extra nuts for every coil.

I'm aware of the "Paradise Lost" situation surrounding the discussion thread related to a new source for induction forges. Until then, can someone suggest an alternative source for purchasing said equipment?

About four years ago, two brothers were posting on this Forum about developing an American-Made induction forge for the masses. What ever became of their efforts? Did they ever launch? As I recollect, one of the brothers was an electrical engineer.