Hot Shot Heat Treat Ovens: Heat Treat Oven Basics, Tips and Tricks
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- เผยแพร่เมื่อ 22 ก.ค. 2024
- Heat Treat Oven Basics, Tips and Tricks: The basic things that you will need to know getting started with a new heat treat oven in your shop.
Information on Hot Shot Heat Treat Ovens:
www.americanrotary.com/produc...
Common Heat Treat "Recipes":
www.americanrotary.com/wp-con...
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Wow! Everyone in this comment section is a machine shop expert. Amazing there are so many experts out there. Why watch his channel since you all know everything already?
We're called machinists, not machine shop experts, and we *always* have a better way to do it. Give 10 of us the same print and we'll make it 20 different ways, and insist the other guys are doing it wrong, even though we each did it twice lol
My wife bought me one of these for Christmas. The giant box is sitting under the tree. It’s supposed to be a “surprise”, but i mean, you can’t hide that box. :)
I've been a hobby machinist for five years and have been interested in doing some heat treatment. This video has convinced me that I shouldn't invest in a Hotshot 360, not because it's a bad product--it appears to be excellent, but because it's now evident that I don't have the space or resources in my small shop to safely operate it. I guess I'll need to review some of Clickspring's videos on his heat treatment methods on a smaller scale.
Excellent overview. I bought the original 1200 as a preorder what seems like an age ago. I’ve used it fairly often for heat treat as well as melting non ferrous alloys pretty successfully. 😊
I've had the 1200 for 3-4 years now, that I got through Stan. I ordered mine with the gas purge setup. Although I've only used this unit a couple of times, it's pretty cool that something with this kind of capability is available for hobbyist like myself.
I have owned a heat treat oven for over twenty years and, I learned a few things.Thanks Keith
Lots of good info thanks for sharing
Thank You for sharing this very informative video with us. Great Job
Useful video for a lot of people from the experienced voice of Keith!
Nice, great informative video !
Thanks for sharing, definitely have a Hot Shot on my bucket list.
Thanks for sharing 👍
Seems like great advice.
always enjoy the videos. hoping to have a serious hobby one day, but a vicarious hobby in the meantime--and learning along the way--isn't bad. keep up the great work, Mr. R!
Great oven Stan invented!
Thanks.
Thanks to American Rotary for supporting Keith's channel.
thanks keith
Great video. I did some heat treating in High School but we just used a torch and went to cherry red, then some solder to get to proper temp for annealing . I'm curious what happens in say a short and also a longer term power outage . does the machine start up again or what? what happens to the part in a partial heat treat process ? thanks
That is a fine collection of straight edges in the background!
Hey,Thanks
It would be great to be able to download those recipes. I have a hotshot oven and am challenged to get the programming done correctly. Keith, have you considered providing downloadable recipes?
Could you make a video going over the programming
Hi Keith, really enjoy all your videos but I was hoping to see the Jimmy Diresta bandsaw restoration through to its completion. We will be seeing that? Thanks for all your great content and explanations!!
-Dave
South korea. 60 years old man
All ways watching
Outstanding.. not always do folks press the safety factor. But I am a very safety minded fellow.. I applaud your teaching style and as the Idiots that run this country like to say.. I approve of this message.. Thanks Keith
Haha!
everyone is watching now!
oh boy! you are in a hot spot now, D.K.!
🔥🔥🔥🔥🔥🔥
it's all about waiting now... the longer we wait... the more you bake... the harder it becomes for you to fake...LoL...
I gotcha good 😉
Hey Keith, When are you going to show the next steps on the Austin Cam Gear?
I just added fire blankets to the fire extinguisher herd. They are reasonably inexpensive and will work if the fire extinguisher does not for some reason.
I have seen in pottery kilns porcelain pyramid isolators to set your item to be heat treated on so your heat stays consistent threw your part, we know how well fire brick insulates! Any thoughts?
Hot topic... 🙂
Keith, I've done hardening and annealing, and on one occasion, I made a mistake and hardened tool steel, and when I went to use it (I made a chisel) it just shattered after I hardened it. Hindsight is a good teacher, if one is willing to learn
Sounds like the mistake was not tempering after hardening.
You needed to tempered it.
Remember that if you're using oil for quenching that you must not use a water or other liquid fire extinguisher. Oil floats on water so putting water on an oil fire will actually spread the fire.. Make sure the extinguisher will deal with Class B (flammable liquid) fires.
I'm not an expert, but I'm wanting to learn more, and Keith is a good instructor.
Where I work, we only use CO2 extinguishers in our shop. It is worth it even where no flammables such as wood or paper, as it makes for easier cleanup.
@@Farm_fab I spent 20 years in the Navy. We had training, both classroom and practical, in fire fighting at least once per quarter. Especially since I was a submariner, where we worried about what might get into the ship's atmosphere, fire fighting was a big thing. In the 1980s there was a bad fire in the submarine USS Bonefish, which killed two people. Both died of smoke inhalation.
All shop fire extinguishers should be at least ABC rated. You never know what's going to go up in the shop.
GREAT JOB, GREAT VIDEO...
Interesting (curiosity only). Only unexpected bit of information was that the casting just lies on the floor of the oven. No stand-offs or risers. Thanks for the video.
They also have heat treat paints that will keep oxygen from getting to your parts.
Sure wish I had the cabbage for one of these in my youth. I've grown accustomed to doing my heat treat and graphitization work around a blast foundry, but as I age, not to mention how much it costs to get coal to my area via freight, I'm more and more looking at going electric simply for cleanliness, convenience, and I'm not at the mercy of mother nature as to when I can do operations!
Why doesn't American Rotary do the initial off-gassing at the factory?
Just a guess, but I suspect that the liner actually hardens during that initial process, and becomes more brittle, which would be problematic in shipping.
@@jamesmoe9188 That makes sense James, thank you.
I'd like to get something to paint with...
Hiya Keith
I believe the fan that comes with the oven is rated for only blowing out into an open space, in other words 0.0 static pressure. All ducts have some static pressure loss and you need to overcome that static pressure. Thus, if you duct the unit, you need a fan that flows the same amount of air as the built in fan and has the static pressure capability equal to that of the duct that you are using to get the hot air outside. If the fan you add has more static pressure capability than you need, then you need to provide a weighted draft damper just like you have on a gas or oil fired furnace. This will keep your new fan from overdrawing the built in fan. Good luck!
Another little safety tip - if you use the same clothes for machining (special apron, jacket, jeans etc.), it gets oiled, and oil burns even on pure cotton, so you need other clothing clean of oil.
Of all the things this awesome channel brought us, the fascinating story of the STOKER ENGINE undoubtedly attracted lots of viewers! But... it is still unfinished, how will it end? Where is the engine now?!
How do you run it the first time outdoors without using an extension cord?
I ordered my HS1200 with a 12’ power cord and NEMA 6-20 plug for my shop.
You make your own extension cord. No longer than needed, and in no case longer than about 20 feet (6 m). Use 10 ga. wire. Use NEMA 5-20 plugs and receptacles. If a 20' extension won't reach in your case, you will need to talk to an electrician about setting up a 120v/20A outlet near the door of your shop. Explain that you will be drawing near the 20 amps of the circuit rating. If it is a long way from your breaker box to the proposed outlet, he may need to use larger wire than required by the electrical code. (A 20 Amp circuit near the outside is useful for a lot more than seasoning your Hotshot for the first time.)
The reason for no extension cord or for a very heavy-duty, purpopse-built cord (don't believe package blurb claiming "heavy-duty" - it isn't) is that the extra length causes a voltage drop and the power available drops with the square of the voltage. A small drop from 120v to 115v means an 8% power drop - possibly enough that the appliance will not be able to operate properly.
As a side note: when any electrical cord is operating near its rated Amp capacity, it MUST be laid out in open air. If it is coiled or covered by something that blocks air circulation over any substantial part of its length, there is a very real likelihood of overheating or melting the insulation and starting a fire. (This includes the cord of the appliance itself.)
@@PeterWMeek Well said. Most people don't know about voltage drop, much less E²/R.
Are these still made by the same gentleman? I listened to a podcast with BarZ as a guest (home shop machinist podcast).
You can now remove "Heat Treat Video" from the white board.
👌👌👌👌
Kieth are you into sales now?
Well who invented this 360 ? American Rotary bought this from your friend
I can't fit it into a 15 amp plug? Challenge accepted 😂😂
All jokes aside, this was another great informative video, Keith. The safety tips especially were excellent
Strange to see this oven near to cast iron straight edges - these precision tools would definitely warp because of uneven heating.
So I can't bake cookies in it? Nice oven. How about using it to expand bearings and other parts?
Sure you can. They just might be well done.
Yes, I can see the logo now. “American Rotary Cookies. Try a batch now with our delicious cutting oil aroma”
I'd bet that this oven has more accurate temp control than your kitchen oven and because it would see extremely high temps often, there should be no issues with any kind of contamination. I would imagine that not only could you bake cookies in it, they would turn out as good if not better than kitchen made. You can even program a heating profile that would be more suited to cookies.
Now I want to see Keith bake a batch of cookies in the damn thing. Thanks a lot.🙄
Pizza!
@@BigRalphSmith yeah and if you leave a mess inside just crank it up to 1500 and burn it all out
Off-topic but I notice the straight edges sitting on the shelf. Isn't it better to hang them so they do not deform, especially if the 'shelf' is not straight?
Can i bake cookies in this??
So, the only question remaining is has anyone incinerated a hot dog in one of these units ?
What about Jimmy’s bandsaw???????
Nitrogen gas flow in into the oven does the job to… much cheaper than argon gas
Heads up,Keith.Someone posted a comment,pretending to be you,claiming that I won something.You need to warn your subscribers .
Tempering isn't hardening. Tempering is a toughening process. If you "lose your temper" the metal is either too hard and breaks or too soft to be fit for it's purpose. Sorry to argue semantics, but toughness is a proper term and characteristic of heat treatment.
Agreed. The three stages of heat treating are 1) Annealing, or taking a part to its softest state. 2) Hardening, or taking a part to its hardest state. 3) Tempering, or reducing hardness and brittleness while retaining strength.
I’m pretty sure he was referring to what the oven dose. Technically the oven dose not harden the parts. In A,w,O hardening materials the cooling medium dose the hardening. The oven only heats, which means he’s mostly correct. Annealing or tempering is the only hardening process you can do with just the oven.
@@centurialinc Again, this is just semantics, but what I'm saying is that overall it would be described as "the heat treating process" not "hardening process". Hardening occurs after heating and quenching. Tempering accurs after hardening. Annealing is another process altogether. Three different aspects of heat treatment like bullet points under a heading, but tempering is not a part of hardening. It's its own thing.
Was this an advertisement?
And not a mention of Stan, who created the concept. 😢
Came here to say this. It appears from some of his remarks at the end of the video, where Keith was introducing himself, that this video was made as an ad for American Rotary, rather than as a regular video. Perhaps that's why Stan wasn't mentioned, although he should have been, not just to give credit where credit is due, but also because his channel (Shadon HKW) has a lot more information about this product. At the very least, Keith could have added a preface to this video explaining the situation.
Yep. I bought an oven from Stan back in 2018.
He maybe have created the original Hot Shot design, but to say he created the concept is overstating things more than just a little. There have been companies making bench top / hobbyist size heat treat oven and kilns for a VERY long time.
He designed it and sold it to American Rotary. I think i have seen one of his owens on this channel before.
He created the concept of the Hotshot360, to misconstrue my comment to mean anything else is rather being picky, methinks.
Didn't mention Stan Z, sad.
Hmmmm an advertising video for an Heat Treat Oven.🤔
A 27 minute advert, extremely bad practice!!!!
He’s reading something.
“Because it’s true and not because it’s a sponsor of my channel” yeah right… your biased, doesn’t matter but don’t pretend to be independent. That’s not thrust worthy.
Just because someone taught you "Everyone is biased" doesn't mean everyone is biased. That's just a point of view, and not everyone agrees with it. There are biased people in the world but there are also honest people in the world.
I think you meant “you’re”, Pas. If you’re going to trash someone, at least you could use the correct words.