My Dad recalled one of his Dads (my Grandad) brothers being killed by the tooth of a circular saw blade while working in a farm workshop. Apparently he died pretty much instantly after a single tooth flew off a large circular saw, striking him directly in the heart. My Dad remembers the day clearly, as it was a shocking sad day for the family. This video just reminded me. Stay safe using your power tools.
@@Рембо-д4о Hi, well this was around the 1930s. It would be an old large circular table saw with probably a 3’ blade, which would have been well past it’s sell by date.
Negative. Although now blades are much cheaper. We used to have them all toothed and sharpened. The amish folks at wiesenhiemers in tn were the best. And usually less than 40$ per blade it was a deal. Especially when they ran upwards of 150$ and you only made 500 a week. And that was insane good money. We still send of blades occasionally but they are custom. 16” and bigger. Largest blade is just over 7’
Thats right when you spend 500 on a blade its better to spend 50 on repair and sharpen rather than buy a new one. You can resharpening 50 times or more
Back in 1983, my first job out of school was a saw sharpener/repairer. This was exactly one of my jobs, but I used oxy/acetylene. And you have to shave the sides and top with a diamond blade to match the other teeth. And done well, it was fine. Never had a complaint in 3 years i was there.
Это идёт при пайке бура порошок и латунь проволока или нарезка полосок проволоки чтоб применять победитовую напайку-я так сам делаю и на резцы на токарные станки..
The tooth are treated with a special progress which makes it more resistable to forces, once you heat it up again the structure changes and wear will be way bigger
В молодости, в 80-х годах, работал напайщиком. На твердосплавную пластину ложил заранее нарезанную латунную пластину, посыпАл флюсом и включал аппарат. Уже напаянные пилы обрабатывали заточники на станке, алмазным кругом. Ведь выкидывать пилу из-за нескольких зубьев было накладно. Так же изготовляли новые пилы, предварительно нагревая и снимая остатки сточенных пластин.
Some of you ppl don't know what you are talking about nothing completely wrong with welding carbide teeth to saw blades like that i worked as a fitter in a filing room of a lumber Co and that's how it is done
around maybe september 2023,i cut my thumb with a saw blade exaxtly like that, just hand held. I cut the tendon too, and ended up having surgery. Any spinning saw scares me to be close to now 😭
1. Its a video so its hard to tell the temperature 2. If it is indeed hot enough, it might be hot welded fine 3. Some steels are air hardening so this is good enough for its purpose In that case i sont see what's wrong with it
I wouldn’t use that blade to cut anything ever again.if u enjoy the use of ur fingers and hands,don’t cheap out on the tools that can instantly remove them and leave you disabled
Lol what? Some of the most expensive blades you can get offer carbide replacement services. It makes no sense to go buy a new blade if you're only missing a tooth on one.
@@SalamiRocketship assuming this was finished correctly I agree, though I have seen saw blades do some crazy things when not in good enough shape. Depends on the time, care and know how !
Cut concrete for 18 years we'd replace them on core drill bits all the time, but you'd have to do all of them. They would hold up just like the new ones. We didn't do it with the wall saw or slab saw blades. With concrete blades or core drill bits you wouldn't just replace one unless it was like new because of clearance
I'm a solid surface fabricator, the blades we use are worth rebuilding and sharpening. Been using the same guy for 15+ years and not one issue in all that time.. of course the teeth count and size of blades we use can't be found at your local hardware store
If you are talking about a 12" or smaller blade I agree but but bigger commercial grade blades that cost hundreds of dollars like this one are worth repairing. @@Sukunasbathwater
Это же ТВЧ установках токов высокой частоты.При попадании металлической детали в поле нагрева она нагревается по решению оператора.Применяютсяифлюсы и припои для соединения частей .На приведенном видео вероятно твердосплавные накладки привариваются кмдиску пилы.
I understand that, in some cases, and in some countries, you have to do what you have to do…… But doesn’t heating up the blade putting on the extra piece of steel weaken the original piece? I would think it would? But I could be mistaken. In my experience with saw blades, once they are used up, you just discard them and get another one.
Carbide tips. I used to use these blades in forging plant. The operator has to be skilled to cut different metals. I've myself have taken every tooth off, but also have cut steel with a few chipped teeth. I destroyed a few when learning. 😅
Many men today, have no idea that saw blades can be sharpened and even repaired! Saw blades are not cheap! Just an 8 or 10 inch blade can be $60-$80 for a "Good One"
This is carbide tip brassing process. For the circular slitting saw. I know this work , done it when I was in the Factory. ( Tool Room) Good information.
At my work we use these type of blades to cut aluminum that’s been cast into vehicle knuckles they are extremely expensive but will last a long time before having to be rebuilt
we do something similar for cutters used to drill into pipelines its worth repair due to all the considerations that go into machine a Pipe cutter that isnear perfect circle. We could have varied form of teeth from steel carbide and concrete.
Это делается на дорогих наверно. В ЛДСП попался железный болт который выломал новой немецкой пиле один зубец. Пила 9₽ стоит. Уже не рабочая. Я бы припаял, но....
@@ИбрагимИбрагимов-э2ш3р в смысле диск с напайками за 9 тыс. руб.? Ни разу не видел таких конских цен. Да и смысл пользовать дорогие комплектующие если дешёвые не намного хуже?
the fun part is re-tensioning the blade -- done hundreds ooh induction-heated and silver-soldered -- oxy/acetylene when done by hand another fun bit is when the blade is 15 feet plus
Saya pernah kerja dibagian pelepasan dan pemasangan serta mempertajam mata sawblade dri 0 sampai bisa dipakai Kurang lebih 9 tahun saya bekerja dibagian pekerjaan ini
Me and grandma replaced a few of them and they were very nice and very good for the first time and they were so good and they are very fast due to all the things they did for us and the family
I used to have blades sharpened but it cost 25 bucks and new blades were $80. Now, with high quality blades under $50 and not enough sharpeners I have milk crates full of dull blades or missing teeth
My Dad recalled one of his Dads (my Grandad) brothers being killed by the tooth of a circular saw blade while working in a farm workshop. Apparently he died pretty much instantly after a single tooth flew off a large circular saw, striking him directly in the heart. My Dad remembers the day clearly, as it was a shocking sad day for the family. This video just reminded me. Stay safe using your power tools.
😢
Я думал так не может быть
Я работаю иногда на форматно-раскроечном станке, там небольшая пила, на 300 или 350 мм
@@Рембо-д4о Hi, well this was around the 1930s. It would be an old large circular table saw with probably a 3’ blade, which would have been well past it’s sell by date.
На такой пиле в бронике работать надо. 😊
@@LeonidS18677 базара нет🚫, здарова 😎братан братишка ✊🤝💪
😅😅
I've never owned a blade so expensive it would be worth this.
I think this for like industrial purposes like at a lumberyard. The or something.
غ2@@Kjjj-o8x
Negative. Although now blades are much cheaper. We used to have them all toothed and sharpened. The amish folks at wiesenhiemers in tn were the best. And usually less than 40$ per blade it was a deal. Especially when they ran upwards of 150$ and you only made 500 a week. And that was insane good money. We still send of blades occasionally but they are custom. 16” and bigger. Largest blade is just over 7’
Thats right when you spend 500 on a blade its better to spend 50 on repair and sharpen rather than buy a new one. You can resharpening 50 times or more
@@jessesutton1588
So the amish worked with carbide and induction heating?
Yeah.... I think I'd rather not risk compromised structural integrity.
This is literally exactly how they’re made in the factory
Your just useless stfu
@@bigdongled3077literally not true
@charlieperis4540 literally is true. This is a carbide toothed saw and this is how they make them except in the factory there is more automation.
@@timothyberens4524 nope
Makes sense why they fall off all the time.
Falls of all the time? 😂
The carbide usually breaks before the braze unless it's been done wrong
That’s a beautiful weld. Surely worthy of a hospital visit.
Back in 1983, my first job out of school was a saw sharpener/repairer. This was exactly one of my jobs, but I used oxy/acetylene. And you have to shave the sides and top with a diamond blade to match the other teeth. And done well, it was fine. Never had a complaint in 3 years i was there.
А я работал, машинистом крана, заливочного. Чугун в конвертор заливал.
To true bro I did it for 14 years never had a complaint. Every resharpening most cases you needed to replace at least one tip
Bravo l'élève affûteur , je vois que tu es un pro du métier ❤ . Tu peux répondre à tout ces bobards incrédules . 😅😅😅😅😅😅😅😅😅
Is this induction heating?
I’m sure it’s super balanced lol
這叫硬焊!400度C以下的焊接!一般用乙炔氣焊加溫!此鋸片利用短路原理加溫!至各種金屬火紅約400度左右 鈦合金也一樣!鎢刀頭及夾子抹助焊劑硼砂!上面有放一節銀聶焊材熔掉完成熔接!
Это называется,, индукционная пайка,, Нагрев твердосплава
с припоем в эл. магнитном поле. 45 лет работаю термистом на уст. ТВЧ.
Температура сваркипобедита с корпусом дска-400градусов????? Судя по цвету зоны сварки там все 800!!!
@@ВалерийБаринов-р5ж 其實各式焊接 熔接 在做的人有千千萬萬人!真正了解熔接原理的卻不多!熔接就在溫度控制打轉!入熱 熱攜出 散熱 敏化 氧化!冷收縮應力控制!真正厲害的不是手法!是如何做出應付各式金屬特性 控制變形 氧化 減少材質變化 冷縮斷裂 退火 周邊夾治具設計! 很多人家認為不可能的焊接!都要從原理去克服!所謂的硬焊 舉個例 船舶常用複合式金屬 甲板下為碳鋼 甲板上為鋁合金 就是用硬焊銀聶焊接而成!炭鋼板 與鋁合金板去掉氧化層 夾帶硬焊劑 貼合 加溫到紅熔接而成的複合式金屬件!請用心體會!至於夾治設計 就是 中國話說:「法不輕傳，道不賤賣，師不順路，醫不叩門」因為這世代沒人懂得感恩!就像這YT一樣 人家分享知識 看過連個讚都不給!懂嗎?
All the people in here saying it’s not safe and they would be standing to one side haha wonder how they think the tips are put on a brand new saw 😂
Tienes razón.
Carbide tip joined to the blade using annealing. Used to weld bandsaw blades and it was similar to this
Это идёт при пайке бура порошок и латунь проволока или нарезка полосок проволоки чтоб применять победитовую напайку-я так сам делаю и на резцы на токарные станки..
Yeah get that carbide red hot so it will come back again soon job security right there
I have been using industrial panel saws with repaired teeth like this for about a decade and have never had an issue.
Saw blade need a Dentists too😅
The technician is using a foot control for power input.
Thanks!!
Well of course
😮@@topchange110 y
Your content always keeps me coming back for more.
Reminder to self, don't buy refurbished saw blades😂
Dunno how you think tungsten tips get on there to begin with
,,PAZ,,,,,,,
😅😅😅😅o😅
Э
😊
Attaching carbide tips to the teeth.
I ve never even thought about it ! Thanks for the video to let me know there's enough safety issues let alone those shenanigans
Blades like these cost many thousands of pounds to buy new…..this is done regularly.
The blade itself is more of a tungsten tooth holder
I took my saw blade to the Dentist
He said you got jokes?
Me too here's the bill 😮
Curious question to those who know this technique, but is this a form of induction welding??
This is induction brazing. The filler metal is dissimilar to the base metal or the metal being bonded.
@@brandonb6164steel bonded to tungsten carbide
@@Dave-dh7rt exactly correct, likely using silver solder as the brazing interface
кто месть индукцийна заварка лох
😂
The tooth are treated with a special progress which makes it more resistable to forces, once you heat it up again the structure changes and wear will be way bigger
Wrong. Thats a Carbide Tip the gets solderd there. They are never treated with a Special process.
You blued the metal, I have a feeling that’s going to shatter
那只是各類金屬加溫到 敏化程度 接觸到氧氣所產生的氧化膜色澤!若是在真空環境加溫不會有此氧化色澤!或是金屬加溫到紅直到紅退到敏化溫度以下 受保護氣體 氬氣或是氮氣保護也能展現此金屬原色!
您形容的應該是 淬火煉製 加溫到紅 在急速予以油冷或水冷淬鍊硬化後材質較脆!
Gotta have that kerf bro
Your edits are on point.
В молодости, в 80-х годах, работал напайщиком. На твердосплавную пластину ложил заранее нарезанную латунную пластину, посыпАл флюсом и включал аппарат. Уже напаянные пилы обрабатывали заточники на станке, алмазным кругом. Ведь выкидывать пилу из-за нескольких зубьев было накладно. Так же изготовляли новые пилы, предварительно нагревая и снимая остатки сточенных пластин.
ПоЛОЖИТЬ можно только х..на чё нибудь😅
😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅
😅😅😅
Знакомое дело! Занимался этим делом. Изготавливали фрезы, зенкира, резцы, развертки и др. режущий инструмент!
😊
Some of you ppl don't know what you are talking about nothing completely wrong with welding carbide teeth to saw blades like that i worked as a fitter in a filing room of a lumber Co and that's how it is done
Quick question would the heat not mess up the temperance of the blade or carbide
Do you know how to construct a sentence? Maybe they don't use punctuation and capitalization where you come from.
They are called saw doctors, interesting trade, a skill on its own
Thanks you so much!!
Only used for certains things,, if used right ,, they're really good blades .i used them for years when i built hi-rises.......⚡️⚡️💯❗️🤙
Now I wanna see how it holds up
А не боишься?😅
Я бы предпочёл через экран посмотреть!😊
around maybe september 2023,i cut my thumb with a saw blade exaxtly like that, just hand held. I cut the tendon too, and ended up having surgery. Any spinning saw scares me to be close to now 😭
1. Its a video so its hard to tell the temperature
2. If it is indeed hot enough, it might be hot welded fine
3. Some steels are air hardening so this is good enough for its purpose
In that case i sont see what's wrong with it
⁹⁹9⁹⁹⁹⁹⁹⁹⁹⁹⁹⁹99999 99.9⁹⁹⁹😊
😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😅😊😊😅😊😊
😊😊
😮😢😢😮😢también está 😮😅
Ok.... I hear you want to be the volunteer to use that sawblade. I will stand off to the side. Go ahead....
I wouldn’t use that blade to cut anything ever again.if u enjoy the use of ur fingers and hands,don’t cheap out on the tools that can instantly remove them and leave you disabled
Lol what? Some of the most expensive blades you can get offer carbide replacement services. It makes no sense to go buy a new blade if you're only missing a tooth on one.
Это пайка твердым припоем, как и на заводе.
@@SalamiRocketship assuming this was finished correctly I agree, though I have seen saw blades do some crazy things when not in good enough shape. Depends on the time, care and know how !
Cut concrete for 18 years we'd replace them on core drill bits all the time, but you'd have to do all of them. They would hold up just like the new ones. We didn't do it with the wall saw or slab saw blades. With concrete blades or core drill bits you wouldn't just replace one unless it was like new because of clearance
Isnt it cheaper and safer to just replace the blade?
Yes.
I'm a solid surface fabricator, the blades we use are worth rebuilding and sharpening. Been using the same guy for 15+ years and not one issue in all that time.. of course the teeth count and size of blades we use can't be found at your local hardware store
It most definitely is
@@Tom-pe3zfabsolutely not
With all the heat, does it anneal the blade requiring it to be re-heat treated to harden back up to factory specs?
Yes, but most cheaper repair places don't, probably so you come back again.
I’ll buy new
Remember guys, time is money. You can buy brand new quicker than you can Jerry rig an old saw blade and it’s waaaay safer.
там твердосплавная напайка -она не отжигается
If you are talking about a 12" or smaller blade I agree but but bigger commercial grade blades that cost hundreds of dollars like this one are worth repairing. @@Sukunasbathwater
REALLY EXPERT, AWESOME 👍👍
Это же ТВЧ установках токов высокой частоты.При попадании металлической детали в поле нагрева она нагревается по решению оператора.Применяютсяифлюсы и припои для соединения частей .На приведенном видео вероятно твердосплавные накладки привариваются кмдиску пилы.
No importa la dureza del disco, porque se suelda una placa widia de metal duro.
припаиваются
Твердосплавы: ВК,ТК и др. Припайка к диску пилы.
На ТВЧ-установку не похоже..
Во-во.
походу - контактная...@@chrysler_
I always wondered how they make these because I’ve bought a few over the years and they work fantastic
That is awesome you know how to do that.
Только так
I understand that, in some cases, and in some countries, you have to do what you have to do…… But doesn’t heating up the blade putting on the extra piece of steel weaken the original piece? I would think it would? But I could be mistaken.
In my experience with saw blades, once they are used up, you just discard them and get another one.
This is an amazing repair procedure.
Nice...good job...
Thanks
Carbide tips. I used to use these blades in forging plant. The operator has to be skilled to cut different metals. I've myself have taken every tooth off, but also have cut steel with a few chipped teeth. I destroyed a few when learning. 😅
Many men today, have no idea that saw blades can be sharpened and even repaired! Saw blades are not cheap! Just an 8 or 10 inch blade can be $60-$80 for a "Good One"
This is carbide tip brassing process.
For the circular slitting saw.
I know this work , done it when I was in the Factory. ( Tool Room)
Good information.
At my work we use these type of blades to cut aluminum that’s been cast into vehicle knuckles they are extremely expensive but will last a long time before having to be rebuilt
Would this not mess up the heat treatment and make the metal soft.. or do they heat treat it again.
we do something similar for cutters used to drill into pipelines its worth repair due to all the considerations that go into machine a Pipe cutter that isnear perfect circle. We could have varied form of teeth from steel carbide and concrete.
Super cool never seen this done before..
Always wondered how they did that thank you. 🤓
Обычный ТВЧ, кстати нагрев на пильное полотно никак не влияет потому, что сталь содержит хорошую долю вольфрама.
Твч?
@@руся-ю8и Ток Высокой Частоты. Советские технологии 60-х годов
Saya mau tanya kalau satu mata serkel berapa harga nya?
Эххххх0⁰х@@руся-ю8и
Я просто диск выкидываю, когда там победитовые зубцы высыпятся на две трети. Подозреваю, что такой ремонт обойдётся дороже нового диска.
Those are Carbide tips.....⚡️⚡️💯❗️🤙
Это делается на дорогих наверно.
В ЛДСП попался железный болт который выломал новой немецкой пиле один зубец. Пила 9₽ стоит. Уже не рабочая. Я бы припаял, но....
@@ИбрагимИбрагимов-э2ш3р в смысле диск с напайками за 9 тыс. руб.? Ни разу не видел таких конских цен. Да и смысл пользовать дорогие комплектующие если дешёвые не намного хуже?
@@АлБа81 это не максималка. Японские ещё дороже. Конифуза та же.
Сколы оставляет пила даже без одного зуба. На ЛДСП.
the fun part is re-tensioning the blade -- done hundreds ooh induction-heated and silver-soldered -- oxy/acetylene when done by hand
another fun bit is when the blade is 15 feet plus
ロウ付けカッターは、チップだけ交換すれば永久に使えマス
You have an incredible voice.
That's awesome thanks for sharing
Famosa solda prata!
I used to be a saw doctor , sharpening circular saws band saws ? All sorts of things
When i worked at a saw mill a 5' head saw box of 3 blades with teeth replaced was $5000
Will never get that 2 minutes of my life back
Probably took more of your rime making that comment
Beautiful technique to fit cutting tool ❤
🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏
Why is that better than just buying a new blade?
Yay! Finished in time for New Years 2025!🤣
Wyeres he getting the industrial diamond tip stock? Old blades broken or damaged harvast
This is sawmill stuff. Dangerous place.
Brazing a saw blade on to saw blade
D.C Electric is easy to use as it delivers a substantial advantage
New blades cost up to 1000 euro , repaired 600ish , they cut up to 8mm thick steel in seconds for like 400-600 times before they break strong shit
Excelente técnica de construcción de un disco de sierra industrial 😊😊😊
This is better fight choreography than most network television
Love it welding of carbide on sawblade
これ、本当にキッチリ取り付けてないと研磨工程で、大変な事になるんですよね〜。
Sachez qu'après les soudures , il y a un affûtage de précision . 😅😅😅😅😅😅😅😅😅😅😅😅
Saya pernah kerja dibagian pelepasan dan pemasangan serta mempertajam mata sawblade dri 0 sampai bisa dipakai
Kurang lebih 9 tahun saya bekerja dibagian pekerjaan ini
I did it differently, didn't have no fansy jig, did it on flat steel table a little wedge under it and the oxy torch.
Tujuan akhir dari bertani bukanlah menumbuhkan tanaman, tetapi menjaga kehidupan."
For all the hard workers in world keep up good work
The fact that the last guy is 2 feet taller then me is wild.
One of my first jobs was a cut gullets in a saw shop...
They work great after the repair
That shit gonna explode from the weak points now.
銀ロウ付けサイドカッターで溝にタングステン合金のチップを張り付け後に研削し刃付けをします研削しだいでミクロンの精度を出せます。高周波やアセチレンガス溶接を使用します。鉄鋼や木工会社でも使われます。
Nice!
Me and grandma replaced a few of them and they were very nice and very good for the first time and they were so good and they are very fast due to all the things they did for us and the family
Overheating made the blade die
That’s how they do that,, nice and my blade guy charged me a grip for re teething my blades,,, fkn simple!!!
Excelente, soy de Cuba, pero donde consigo los calzos
This is what my dentist uses just to clean my teeth. You should see how he handles a wisdom tooth.
ТВЧ лампове чи генератор? Колись напаював напайки на різці і рапід і ВК
Сколько стоит також ремонт,или пройти диск сразу купить?
أسطوانة مسنن قابلة لتجديد الاسنان en carbure
Question? Doesn't all that warp the blade an make the steel brittle?😊
Yep, this'll kill the night shift for sure
That's a hard pass! That's one of many things I would replace before I ever considered repairing!
Do these blades cost more to replace? How big are the diameter on these?
ممنون از توضیحات❤
dear machinists... thats how it's done... 60 years ago
Probably a stupid question but does that burn The temper out of the blade?
Id rather buy a new one.
We do this everyday and in bandsaw. We are saw Doctor’s
I used to have blades sharpened but it cost 25 bucks and new blades were $80. Now, with high quality blades under $50 and not enough sharpeners I have milk crates full of dull blades or missing teeth