I am learning CNC and have seen an EDM machine but now working; I have known about them for 5 years, but until now was clueless how they worked. Thank you! Excellent presentation and clearly described. What an awesome tool!
Murali - This is possible some machines are better than others at drilling holes to depth and also some are better at redressing the electrode to help make a flatter bottom hole. However you will not get a very small diameter hole - I would expect 0.4-0.5mm. You should expect to have to do a few test holes in a spare piece of metal (same as test part)
With all due respect - this is what machine manufacturers like Mitsubishi and Sodick have been spending millions on for the last 25 years to try and get a competitive edge......
Ronny All this type of machines are made by two main factories in Taiwan. Spare parts are readily available - just google and you will find plenty of suppliers of me to spares and also OEM parts. We do not make or sell machines - but we use them in the business Paul
What are those manufacturers? I look on the internet and get a whole lot of stuff. Looking for a low end machine. You know where I could buy one in the US?
Hi. Is there any standard spare part list for a EDM Hole Popper? Also, what are the most common malfunctioning problems you could have in this machines? Are there any troubleshooting procedures for that?
very nice, i think there is another kind of application to make holes (thousands maybe) on a sheet metal, there should be many copper electrode tubes i suppose, very nice, i love science and engineering
Divad - There is some editing in the video to keep it short - but drilling a 1mm hole through aluminium say 20mm thick will on take 2-3 mins. However a 4mm hole in Inconel 150mm deep could take 40-50 mins
Thank you very much. Just one final question, I've not seen a direct answer anywhere. For the paraffin dielectric type, a particle filter is needed but not an ion exchange resin, is that right?
Thank you very much for answering, you're a great company. I've been thinking about magnetic filtration. Little research and I found this. "...ability to remove 100%* of ferrous particles including sub-micron particles from the process. Traditional filtration systems typically leave particles smaller than 5-10 microns circulating in fluid causing damage to process equipment and finished products."
If you are only going to machine ferrous metals then magnetic is good but not perfect as the brass or copper tubes also get eroded into the water system, and the magnetic system wont collect these. We erode a wide variety of material and not a lot of ferrous, so we will always have to use traditional filers.
We use generally deionized water. Readily available and easy to generate on site either by reverse osmosis (EASY RO) or by deionizing resins. (we use both). If you want to know more contact me paul@edmprecision.com.
Yes this is common practice in the automotive injector industry. Here a tilting head is used to feed the electrode at variable angles to achieve tapered holes. This is usually done by spark erosion though.
We do not make the machines but we know how to use them, I would need to take panels off the machine to answer your question which I am sure you understand I do not want to do unless required for servicing or repair so I cannot tell you the servo motor spec. However I think you could find out if you looked on some of the EDM spare parts sites...
Electrode is rotating to make sure entire bottom is eroded. Electrode is hollow to push a liquid for cooling, removal of debris, as dielectric and to stiffen the electrode. If the electrode would not rotate it would leave a plug that would stuck in the electrode and would stop liquid from flowinng.
Hi Konely - The brand is Shiang Yang and its still going strong - Today we will be drilling an angled 4mm hole in a Motorsport Crankshaft about 150mm long
On the part in the video we used brass, when we drill alu we try to use copper tubes as the recast layer is less which makes secondary ops such as wire eroding less troublesome. The holes in the tubes are relevant if you are drilling a through hole or hole to a depth, otherwise its all about good electrical conductivity and dimensional reliability.
I've always wondered why the electrode would not spark sideways to the part, only at the tip, I understand that it is a function of the feed rate, making the clearance at the bottom the smallest gap for the spark to jump and the tip erodes somewhat larger hole than the electrode diameter, thus creating clearance that the spark would have to jump, but since the electrodes aren't perfectly straight and are being rotated (as I could see when the electrode exited the SS part), I'd expect some side sparking/erosion going on, or is there some sort of dielectric coating on the electrode sides?
Note that the clean dielectric (de-ionized water in this case) is being pumped at high pressure through the centre of the tube - this encourages the sparks to be generated in the location required (the end of the electrode). However, there will be some sparking on the side of the tube near the tip and often after machining the electrode can be bullet shaped which demonstrates this. - I would say EDM holes are not perfect but they work well when conventional drilling is not possible
I am not sure where you might get such electrodes - with EDM hole drilling there must be one or more holes through the length of the electrode to enable flushing with high pressure deionised water or dielectric oil. Have you tried looking for 0.4mm diameter brass wire www.amazon.co.uk/Unplated-Brass-wire-0-4mm-26ga/dp/B00JYIH7RI ?
CPWS® is a China manufacturer of similar/compatible EROWA,system3R EDM tooling fixture workholding chuck vise for sinker EDM,wire EDM,CNC machining, at low affordable price, good precision, export to all over the world,fast shipping,good service ---------- www.workholdingtool.com------- sara@workholdingtool.com
Cool process, a bit of advice to the editor though. Make sure the subject gives you a sharp audio cue at the beginning of each clip so you have something to sync the audio with, then cut that portion once it's synced. It was off by a tiny bit in this and it was kinda strange to watch.
Excuse me sir, may I ask? I was asked to investigate the movement of X and Y on EDM, and was asked on the work process of the tool to make automatic movement in the fields of X and Y, and make micro EDM can form a pattern like 3D printing. how do i determine the good speed rate and material needed for smooth movement of X and Y from EDM? please give advice, thank you sir.
How much does one of these machines cost? I was watching someone demonstrating this type of machine with a bent electrode and it still was impressive. Creating a small slot.
In this instance about 10mm / min - however with high melting point materials the speed is greatly reduced. ie Moly or tungsten carbide (perhaps only 1mm/min)
There is no single figure - variables are too many - size of hole, type of material, accuracy of hole diameter required. However the video time to drill a hole is unedited so it is quite quick for a through hole
@@sj1130 the purposeof the DI fluid is to cool the electrode and flush the hole. If the electrode becomes coated with the erroded material it will not be as conductive. It may struggle and/or blow out a side wall and damage the surrounding material. It also acts as a insulator until it atomizes from the heat. Then it acts as a coductor and allows the sparks to jump the "gap" between the electrode and the work piece. Thats what causes the cotrolled and accurate erosion. If the electrode loses flush it will heat up and depending on its size, possibly disintergrate. Normally at my shop we also use other flush lines at the hole entrances to avoid this. We hold hole size tolerances at +/-.001 of an inch with a position tolerance a .010 of an inch through several inches of material.
i work with a EDM machine but I have some troubles with it. this machine can't drill carbure and others hard steels, and frecuently graphit electrode doesn't work. ;( i hope you could tell me some advises
Normally you would clamp the part to the table of the machine - I have not done this on purpose for this video to show that there is no load from the tube electrode - it is the sparks that cur the hole...
1. The spark needs a low conductivity path to follow it does this through the dielectric fluid Deionized water or oil, rather than air 2. The fluid is at high pressure and flushes away the metal that is eroded so that the spark is working in the correct place and not sparking through eroded debris
Hello sir, Is it possible to do a 38mm depth hole in a 50mm height block. We want to do EDM holes for our calibration blocks used in UT inspection. When enquired about EDM drill they mentioned only through holes are possible. Kindly give your feedback.
it looked to me like the electrode was visibly bending downwards after exiting it's positioning device. which would mean any non vertical hole will not be straight. confirm?
Hi - I do not believe that the electrode was bending by gravity - they are not that flimsy when they are of a diameter of 0.7mm or more - probably an optical illusion. We have drilled many holes using the B axis which is available on this machine and the we inspect them they are not curved they do remain straight. However, if we were drilling a deep small diameter hole we would test drill in a piece of similar material as the workpiece and if we found that the hole was not straight - we would look to setting the work piece up at the required angle and drill in Z axis only. Engineering is often about problem solving "Adapt and Overcome"
It would be helpful to state what point (time-wise) in the video you are referring to. I sure do not see any bending (or even see the electrode) as he begins the angled hole in the loose block. Surely it would take an inch or so of unsupported extension, depending on electrode diameter, before any significant bending from gravity would take place, and the electrode guide would almost always be placed much closer than that.
Hi Machines range in cost from $20k for a basic manual model, approx $40k for one like the video, I believe the best to be Ocean River machines, we have just bought one of these to add to our capacity and its excellent
EDM hole drilling will not give the same results as gun drilling which is far more accurate and will enable much deeper holes to be drilled. However is is regularly used to remove broken gun drills from holes, when things go wrong!
EDM hole drilling does not create a great surface finish when drilling larger diameter holes - Bigger sparks, however with small holes 1mm diameter or less the surface will be 2.0-3.2 Ra as the sparks are smaller
is this a voice over? interenting tech but i cant get past this guys voice. at a few points in the video the audio skips like the program dosnt know how to day EDM well enough.
It's not intended for tasks that can be achieved with a normal drill or other machining method. Let's see you drill a 3mm diameter hole in tungsten carbide with a twist drill.
Скорость большая наверное ток импульсный высокочастотный у нас на заводах тоже импортные делать раз учились вот к примеру знакомые учатся за деньги в институтах покупают ответы на экзаменах и с высшим образованием. А потом будут падать ракеты, покупать готовые импортные станки, получать высокую зарплату и командовать рабочими , им плевать на всё.
@@edmprecision I spoke incorrectly about the missiles, they will illiterately invent, and from that they will fall from illiteracy and holiness to science. And not in the sense of a military attack or some other thing. Sorry .
This a great question We use generally deionized water.,ready available and easy to generate on site either by reverse osmosis or by deionizing resins. (we use both). If you want to know more contact me paul@edmprecision.com.
Interesting. I wondered how an EDM hole drilling machine worked and this explained it very well.
I am learning CNC and have seen an EDM machine but now working; I have known about them for 5 years, but until now was clueless how they worked. Thank you! Excellent presentation and clearly described. What an awesome tool!
Very Kind comments - Thank you
Fascinating to watch. Thank you!
UA-cam recommendation has a mind of its own...
Yeah they know i like tech.
5 years after the fact
Colin - Due to too much background noise on the original audio - we unfortunately had to do a voice over.
excellent presentation, watched it twice just because it was so enjoyable :-)
Thank you
Fantastic! I couldn't imagine what else task it can do! It's like laser cutting but not, Metal 3d printing and this, Future!
Maybe I missed it, but when drilling a hole how do you stop discharge leaving the sides of the electrode eroding the wrong material.
Well what a time to be a life with all this fantastic technology. It brilliant.
JESUS CHRIST! i mean, it's an impressive machine, but have you seen this dude's massive jaw! that's a work of divine art!
Murali - This is possible some machines are better than others at drilling holes to depth and also some are better at redressing the electrode to help make a flatter bottom hole. However you will not get a very small diameter hole - I would expect 0.4-0.5mm. You should expect to have to do a few test holes in a spare piece of metal (same as test part)
very nice. for hole sizes less than 0.6 or 0.2mm , is it still possible. just enquiring to know the feasibility.
What is the cost of machine ??
its $2 mil
@D Madej 2 juta rupiah mas
Was that hole drilled in the block shown in real time? Is it that fast?
Great job sir
excellent video... very informative... any idea you have to speed up the process?
You could try ECM
@@edmprecision No... I am asking about any idea to develop the speed of EDM
With all due respect - this is what machine manufacturers like Mitsubishi and Sodick have been spending millions on for the last 25 years to try and get a competitive edge......
Ronny
All this type of machines are made by two main factories in Taiwan.
Spare parts are readily available - just google and you will find plenty of suppliers of me to spares and also OEM parts.
We do not make or sell machines - but we use them in the business
Paul
What are those manufacturers? I look on the internet and get a whole lot of stuff. Looking for a low end machine. You know where I could buy one in the US?
Tht starting and ending music is same with Flight Pilot game's music !! My fav game!!
Hi. Is there any standard spare part list for a EDM Hole Popper? Also, what are the most common malfunctioning problems you could have in this machines? Are there any troubleshooting procedures for that?
in theory is possible to drill holes up to 25mm in diameter?
Your tool work at 45degree that's amazing👍
very nice, i think there is another kind of application to make holes (thousands maybe) on a sheet metal, there should be many copper electrode tubes i suppose, very nice, i love science and engineering
Great Video ! Do you guys make an EDM Milling Machine ???
Nice!! Thanks
EDM Precision, I've seen other machines and I can't help wondering, is it drilling that fast or you sped up the video? What's the speed mm/min?
Divad - There is some editing in the video to keep it short - but drilling a 1mm hole through aluminium say 20mm thick will on take 2-3 mins. However a 4mm hole in Inconel 150mm deep could take 40-50 mins
Thank you very much. Just one final question, I've not seen a direct answer anywhere. For the paraffin dielectric type, a particle filter is needed but not an ion exchange resin, is that right?
Divad - you are correct. Ion Exchange is only required when using water
If it fast hole drilling I would recommend water - less messy!
Thank you very much for answering, you're a great company. I've been thinking about magnetic filtration. Little research and I found this. "...ability to remove 100%* of ferrous particles including sub-micron particles from the process. Traditional filtration systems typically leave particles smaller than 5-10 microns circulating in fluid causing damage to process equipment and finished products."
If you are only going to machine ferrous metals then magnetic is good but not perfect as the brass or copper tubes also get eroded into the water system, and the magnetic system wont collect these.
We erode a wide variety of material and not a lot of ferrous, so we will always have to use traditional filers.
Im assuming the fluid you are using is deionized water right?
We use generally deionized water. Readily available and easy to generate on site either by reverse osmosis (EASY RO) or by deionizing resins. (we use both).
If you want to know more contact me paul@edmprecision.com.
Is there any way the electrode can be bend and make a curved path instead straight.
Yes this is common practice in the automotive injector industry. Here a tilting head is used to feed the electrode at variable angles to achieve tapered holes. This is usually done by spark erosion though.
What heat sink are you referring to?
Thanks for making such wonderful video. would you tell me the servo motor use in EDM? with motor specification.
We do not make the machines but we know how to use them, I would need to take panels off the machine to answer your question which I am sure you understand I do not want to do unless required for servicing or repair so I cannot tell you the servo motor spec. However I think you could find out if you looked on some of the EDM spare parts sites...
I love ELECTRONIC DANCE MUSIC
Just kidding.
Why we use water here and commonly which type of dielectric fluid we are using ...?
Sir, did you give a motor on the electrode? so the electrode is rotating to feed on every direction? just like milling? sorry for bad english
Electrode is rotating to make sure entire bottom is eroded. Electrode is hollow to push a liquid for cooling, removal of debris, as dielectric and to stiffen the electrode. If the electrode would not rotate it would leave a plug that would stuck in the electrode and would stop liquid from flowinng.
What is the smallest hole we can get by this technique?
Hi Khaled Realistically about 0.25mm depending on thickness - if say 5mm thick between 0.28 and 0.30 - otherwise you need Micro EDM to det smaller
How to make notch with this machine?
Can we program for making surface erosion by this machine?
You need a spark erosion machine for a notch - not quite the same machine but similar science....
A very clever piece of kiti can see the being a bussy machine
👍👍👍😜🏴🦄🎣😁🤞✌️
Sparkdrill machine 🔥🔥
From were r u
Lovely....and the brand name is?
Hi Konely - The brand is Shiang Yang and its still going strong - Today we will be drilling an angled 4mm hole in a Motorsport Crankshaft about 150mm long
Thank you!
does your machine work on borosilicate glass
Unfortunately, Borosilicate glass does not conduct electricity. So the answer is no
@@edmprecision thanks for your response!
How about the ware off of the tiny electrode?
Alex
You do get wear on the electrode but unless the material has a very high melting point (tungsten, moly etc) the wear is not too bad.
May i know what kind of material used for the EDM tool and why it is preferred? Any unique properties are there in the tool material?
On the part in the video we used brass, when we drill alu we try to use copper tubes as the recast layer is less which makes secondary ops such as wire eroding less troublesome.
The holes in the tubes are relevant if you are drilling a through hole or hole to a depth, otherwise its all about good electrical conductivity and dimensional reliability.
EDM Precision is combination of copper and graphite is suitable for the EDM tool ? Is it provide better performance?
Not for EDM hole drilling, but yes for spark eroding, CuW is also used
EDM Precision i am doing a project based on alternative EDM tools Thank you for your information😊
How do it know ?
I've always wondered why the electrode would not spark sideways to the part, only at the tip, I understand that it is a function of the feed rate, making the clearance at the bottom the smallest gap for the spark to jump and the tip erodes somewhat larger hole than the electrode diameter, thus creating clearance that the spark would have to jump, but since the electrodes aren't perfectly straight and are being rotated (as I could see when the electrode exited the SS part), I'd expect some side sparking/erosion going on, or is there some sort of dielectric coating on the electrode sides?
Note that the clean dielectric (de-ionized water in this case) is being pumped at high pressure through the centre of the tube - this encourages the sparks to be generated in the location required (the end of the electrode).
However, there will be some sparking on the side of the tube near the tip and often after machining the electrode can be bullet shaped which demonstrates this. - I would say EDM holes are not perfect but they work well when conventional drilling is not possible
@EDM Precision Please answer this one for the enthusiasts. We'll appreciate a lot.
There is no coating on the electrode. The sparks will take the path of least resistance and that is the tip of the electrode.
Where can I get this micro electrodes?
I actually need Solid brass micro electrodes of diameter 0.4 mm and length of 3.5 cm.
I am not sure where you might get such electrodes - with EDM hole drilling there must be one or more holes through the length of the electrode to enable flushing with high pressure deionised water or dielectric oil. Have you tried looking for 0.4mm diameter brass wire www.amazon.co.uk/Unplated-Brass-wire-0-4mm-26ga/dp/B00JYIH7RI ?
What is the best surface roughness (Ra) that can be acquired with the EDM process?
This only drills a hole for the wire EDM machine. The quality of the surface is irrelevant. The electrode is otherwise conical eroded
Holy shit that last hole was drilled fast..
CPWS® is a China manufacturer of similar/compatible EROWA,system3R EDM tooling fixture workholding chuck vise for sinker EDM,wire EDM,CNC machining, at low affordable price, good precision, export to all over the world,fast shipping,good service ---------- www.workholdingtool.com------- sara@workholdingtool.com
Cool process, a bit of advice to the editor though. Make sure the subject gives you a sharp audio cue at the beginning of each clip so you have something to sync the audio with, then cut that portion once it's synced. It was off by a tiny bit in this and it was kinda strange to watch.
How to contact you
is he works in magnesium and it's alloys ?
Excuse me sir, may I ask? I was asked to investigate the movement of X and Y on EDM, and was asked on the work process of the tool to make automatic movement in the fields of X and Y, and make micro EDM can form a pattern like 3D printing. how do i determine the good speed rate and material needed for smooth movement of X and Y from EDM? please give advice, thank you sir.
How much does one of these machines cost?
I was watching someone demonstrating this type of machine with a bent electrode and it still was impressive. Creating a small slot.
We dont sell them but use them - one like the one in video with a B axis = £30-35,000
What is the feed rate for the last operation shown in the video?
In this instance about 10mm / min - however with high melting point materials the speed is greatly reduced. ie Moly or tungsten carbide (perhaps only 1mm/min)
is it possible to make "D shape" holes through this process?
Not possible - that requires spark erosion. See one of the other videos or visit www.edmprecion.com
I'd love to know how such small tubes are made with channels for the dielectcic.
extrusion
Drawing process
Using an EDM machine and a slightly smaller similar tube obviously.
may I know what is average super drill machine feed rate? what is the unit for drill feed rate? Is't mm/sec or mm/min or m/min
There is no single figure - variables are too many - size of hole, type of material, accuracy of hole diameter required. However the video time to drill a hole is unedited so it is quite quick for a through hole
Do u know the unit for feed rate of this machine
feed rates are likely on the order of mm/min
What is the purpose of dielectric fluid
@@sj1130 the purposeof the DI fluid is to cool the electrode and flush the hole. If the electrode becomes coated with the erroded material it will not be as conductive. It may struggle and/or blow out a side wall and damage the surrounding material. It also acts as a insulator until it atomizes from the heat. Then it acts as a coductor and allows the sparks to jump the "gap" between the electrode and the work piece. Thats what causes the cotrolled and accurate erosion. If the electrode loses flush it will heat up and depending on its size, possibly disintergrate. Normally at my shop we also use other flush lines at the hole entrances to avoid this. We hold hole size tolerances at +/-.001 of an inch with a position tolerance a .010 of an inch through several inches of material.
So in theory can we make curved holes with EDM?
Not with EDM hole drilling - but it is possible with multi axis spark eroding - using a curved electrode. However 3D printing may be simpler.
@@edmprecision Yeah I was thinking of a curved electrode. Thanks for the answer!
How efficient is the wear vs submersion?
i work with a EDM machine but I have some troubles with it. this machine can't drill carbure and others hard steels, and frecuently graphit electrode doesn't work. ;( i hope you could tell me some advises
Hi Abraham - These questions are really for the people who sold you the machine - or the OEM
how the workpiece is held?
Normally you would clamp the part to the table of the machine - I have not done this on purpose for this video to show that there is no load from the tube electrode - it is the sparks that cur the hole...
Nice 👌👌👌
It's a kind of EDM ...
May I know the manufacturer of this machine? As I am looking for the EDM microdrill machine with tilting head for the angular drills.
Shiang Yang
What is the purpose of dielectric fluid
1. The spark needs a low conductivity path to follow it does this through the dielectric fluid Deionized water or oil, rather than air
2. The fluid is at high pressure and flushes away the metal that is eroded so that the spark is working in the correct place and not sparking through eroded debris
Hilariously dumb question why does it need to rotate?
Not a dumb question. It helps ensure even wear on the electrode so the hole does not veer off in any direction
Our larger machine can drill 350mm deep - but would only recommend with holes greater than 2.4mm
Hello sir,
Is it possible to do a 38mm depth hole in a 50mm height block. We want to do EDM holes for our calibration blocks used in UT inspection. When enquired about EDM drill they mentioned only through holes are possible. Kindly give your feedback.
murali krishnan selvaraja Hello mate. Yes you can do blind holes with this process
it looked to me like the electrode was visibly bending downwards after exiting it's positioning device. which would mean any non vertical hole will not be straight. confirm?
Hi - I do not believe that the electrode was bending by gravity - they are not that flimsy when they are of a diameter of 0.7mm or more - probably an optical illusion. We have drilled many holes using the B axis which is available on this machine and the we inspect them they are not curved they do remain straight.
However, if we were drilling a deep small diameter hole we would test drill in a piece of similar material as the workpiece and if we found that the hole was not straight - we would look to setting the work piece up at the required angle and drill in Z axis only.
Engineering is often about problem solving "Adapt and Overcome"
Thank you for your answer! Must be my crooked eyes :-) Any chance you're in Stuttgart next tuesday?
I guess your eyes are fine, the optical illusion could be due to the running water.
It would be helpful to state what point (time-wise) in the video you are referring to. I sure do not see any bending (or even see the electrode) as he begins the angled hole in the loose block. Surely it would take an inch or so of unsupported extension, depending on electrode diameter, before any significant bending from gravity would take place, and the electrode guide would almost always be placed much closer than that.
I am unsure what your specific question is
Sorry that's not how the question system works on UA-cam. Nobody knows who you are talking to.
Price
Hi Machines range in cost from $20k for a basic manual model, approx $40k for one like the video, I believe the best to be Ocean River machines, we have just bought one of these to add to our capacity and its excellent
EDM hole drilling will not give the same results as gun drilling which is far more accurate and will enable much deeper holes to be drilled. However is is regularly used to remove broken gun drills from holes, when things go wrong!
EDM Precision
SPARKONIX
EDM ( Speed 2 )
EDM hole drilling does not create a great surface finish when drilling larger diameter holes - Bigger sparks, however with small holes 1mm diameter or less the surface will be 2.0-3.2 Ra as the sparks are smaller
If you ever want a fun project from me, I'd be happy to oblige xD
unfortunately not .
To create a curved hole would need spark erosion with a curved electrode it's really tricky to do.
A tilting electrode head with automatic feed and tip dressing is used to make injector nozzle holes (as an example)
Liệu nó cắt vật liệu silicon carbider?
The heat sink looks like a big bush.
EDM= wubwubwubwubwubwubwubwub aww awaw aw aw DUDUDUDUDUUDDDU.
that is the kind of EDM in my head.
nice
is this a voice over? interenting tech but i cant get past this guys voice. at a few points in the video the audio skips like the program dosnt know how to day EDM well enough.
i could use a machine like that!
👍👍
Wow
Special mini gun..
I'm gonna need that machine so send it
Hi We dont sell them but use them, you can find sellers via search engines
Glad you like it though
this is great but compare normal drilling machine it is cost more if someone not consider cost they need only accuracy it can buy
It's not intended for tasks that can be achieved with a normal drill or other machining method. Let's see you drill a 3mm diameter hole in tungsten carbide with a twist drill.
Говоришь интересно, но я нечего не понял, или я дурак ?
I guess this is a rhetorical question
mm/min
Скорость большая наверное ток импульсный высокочастотный у нас на заводах тоже импортные делать раз учились вот к примеру знакомые учатся за деньги в институтах покупают ответы на экзаменах и с высшим образованием. А потом будут падать ракеты, покупать готовые импортные станки, получать высокую зарплату и командовать рабочими , им плевать на всё.
What a weird comment from Russia !
@@edmprecision I spoke incorrectly about the missiles, they will illiterately invent, and from that they will fall from illiteracy and holiness to science. And not in the sense of a military attack or some other thing. Sorry .
What is its approximate price? Support Delivery in India?
🙂👍
Yo vengo por el profe polo, no entiendo mucho esta en inglés
Your company sale machine in India
This a great question
We use generally deionized water.,ready available and easy to generate on site either by reverse osmosis or by deionizing resins. (we use both).
If you want to know more contact me paul@edmprecision.com.
reverse welding.
J F M!
If you want to know more about EDM hole drilling give us a call 01327 858283
Yeah, But my DeWalt battery powered hand held drill Can Can drill a sloppy hole in a piece of wood. Lol