Brings back memories of my 30+ years at Garrett Aerospace/Honeywell. We used TIG welding as well as laser cutting and welding and some Sciaky E-Beam welders with their massive vacuum chambers. Since we were manufacturing turbofans and turboprops as well as APUs, many of our E-Beam welded parts went through 100% inspection by real time x-ray.
there are many examples of EB welding outside of a chamber, or rather it's inside the chamber but the chamber is mobile and moves along the workpiece. There are also non-vacuum methods of EB welding.
Wow - brings back memories 1966 at Sundstrand aviation - English Electric - Liverpool Beam welding on a Hawker Sidley DYNAWELD - By error, noticed if the components where dipped in liquid nitrogen! The beam parameters could be dropped 90% achieving no distortion - zero colouring - full penetration - 90% less power - ceramic / tungsten filament lasted far longer - This was simply called “Super Conductivity”-
I hear electron beam welding can be so good that in pieces that have subsequently failed it wasn't even in the welded sections but the solid area of the original material!
In E.B. Welding, the welding is done in complete vacuum, therefore there is no need for Flux, or for that matter filler metal. Pump down at the machine that I run for work is six minutes. The most critical part is that your weld joints have to be cleaned with Acetone to ensure there's no contamination. L.B. Welding does require a shielding gas since it's done on the open atmosphere.
Yes, this can be done, but it mitigates some of the advantages of laser welding, such as the fact it can be done in less controlled environments, can be faster because there’s no waiting for a pumping down/up the vacuum chamber, etc. Have you a specific application;ication in mind?
I have to disagree on your explanation for Lasers lacking penetration. It is not about reflection! Lasers do up to half inch penetration very easily. Probably more, but I don't have a Laser strong enough to try. ;) If it can be welded with a laser: Use a Laser! If it can't, EBW might be your friend. The big advantage for penetration that the EB has is the vacuum. For deep penetration welding you need to open up the "key hole" filled with vaporized base material. You have to boil the steel for that. Under Vacuum steel boils at ~2500°C. In atmosphere it boils at 3500°C. That is a HUGE difference! Laser welding under Vacuum is also a thing. The beads look very similar to EBW.
I am a Mechatronics student, thanks for this amazing video.
Brings back memories of my 30+ years at Garrett Aerospace/Honeywell. We used TIG welding as well as laser cutting and welding and some Sciaky E-Beam welders with their massive vacuum chambers. Since we were manufacturing turbofans and turboprops as well as APUs, many of our E-Beam welded parts went through 100% inspection by real time x-ray.
Good on you for being efficient with my time.
there are many examples of EB welding outside of a chamber, or rather it's inside the chamber but the chamber is mobile and moves along the workpiece. There are also non-vacuum methods of EB welding.
Wow - brings back memories 1966 at Sundstrand aviation - English Electric - Liverpool
Beam welding on a Hawker Sidley DYNAWELD -
By error, noticed if the components where dipped in liquid nitrogen! The beam parameters could be dropped 90% achieving no distortion - zero colouring - full penetration - 90% less power - ceramic / tungsten filament lasted far longer - This was simply called “Super Conductivity”-
Can someone explain why EB is not fit to use on polymers ceramics and other non metals
Cost of one EB welding setup for small weldings
do you have machine the way how to weld carbide 2.50mm to steel in same size ?No Brazing with alloy such as brass.
I hear electron beam welding can be so good that in pieces that have subsequently failed it wasn't even in the welded sections but the solid area of the original material!
Is it possible to have proper welding between low carbon and medium carbon steel approx 10-12mm weld penetrated
no
I am planning to make steel furniture and by using an automated welding machine. Kindly advise the cheap and best technology with a neat finish.
ua-cam.com/video/PXzR_484z_Q/v-deo.html
Good video. Thanks
Are we using flux in lbw & ebw or not. And why?
In E.B. Welding, the welding is done in complete vacuum, therefore there is no need for Flux, or for that matter filler metal. Pump down at the machine that I run for work is six minutes. The most critical part is that your weld joints have to be cleaned with Acetone to ensure there's no contamination. L.B. Welding does require a shielding gas since it's done on the open atmosphere.
Can laser welding be strong enough for thick mild steel like 5 mm?
yes
Could laser welding be done in a vacuum?
Yes, this can be done, but it mitigates some of the advantages of laser welding, such as the fact it can be done in less controlled environments, can be faster because there’s no waiting for a pumping down/up the vacuum chamber, etc. Have you a specific application;ication in mind?
any future research methods to improve the efficiency of laser beam welding like preheating the workpiece.
the size of the machine can be reduced
This is excellent. Thanks!
I have to disagree on your explanation for Lasers lacking penetration. It is not about reflection! Lasers do up to half inch penetration very easily. Probably more, but I don't have a Laser strong enough to try. ;) If it can be welded with a laser: Use a Laser! If it can't, EBW might be your friend.
The big advantage for penetration that the EB has is the vacuum. For deep penetration welding you need to open up the "key hole" filled with vaporized base material. You have to boil the steel for that. Under Vacuum steel boils at ~2500°C. In atmosphere it boils at 3500°C. That is a HUGE difference!
Laser welding under Vacuum is also a thing. The beads look very similar to EBW.
perfect
Bruh the magnet went on fire 💀
Hast x ?
factory on the moon or Mars
Moon. Closer and no atmosphere. On the Moon you could do electron beam welding outdoors.