1/23/2024 0 Comments Electron beam weldingOn the one hand, vacuum pumps have to maintain a permanent background pressure in the high vacuum range at the electron beam generator after the pumpdown process. Creating and maintaining a secure vacuum is therefore crucial for the entire process. This increases efficiency because virtually all the energy is applied to the workpiece. Electron beam welding must take place in a vacuum so that the electron beam is not scattered by residual gas molecules. Depending on the installation location of the operating site, electron beam welding systems can be specifically designed for one application or, as a universal machine, cover a wide range of applications and customers. In addition, there are sophisticated special designs, which are in demand in particularly specialized areas such as the aerospace industry and the energy and nuclear industries. Companies in the automotive supplier industry, electrical engineering, medical technology and precision mechanics in particular make use of this procedure. It is therefore not surprising that electron beam welding is always used when high precision and quality are not the only requirements. And finally, a vacuum also prevents unwanted oxidation of the welded workpieces, which can otherwise rapidly lead to problems during processing. Since the surrounding material is protected during electron beam welding, metals with high thermal conductivity can also be welded. In this way, combinations of a variety of different materials can be processed that could hardly be combined in any other way. This is due to the fact that the procedure achieves a very high local energy density on the one hand, but on the other hand there is only minimal heat input into the material surrounding the welding seam. Due to the high reproducibility of the welding results, the procedure is predestined for series production.Įlectron beam welding also has a positive effect on the choice of component materials. Since the process is not manually controlled, electrical adjustment of the beam parameters ensures very precise real-time control, ensuring first class components. Also, the possible welding depth is greater, it can reach 30 centimeters. On the one hand, much higher velocities of up to one centimeter per second can be achieved. So why should the process take Keeping air out during welding place in a vacuum? The electron beam process has several benefits. If you are not familiar with the technology, the first thing you have in mind is a welder with an arc conductor and a heavy protective mask who applies the filler metal to the material while sparks are flashing. This is intended to prevent the electrons from being scattered by air molecules and to enable trouble-free and loss-free beam focusing on the workpiece. The beam generation in the electron beam gun and the actual welding process in the welding chamber take place almost exclusively under vacuum at pressures in the high vacuum range (10-3 to 10-6 hectopascals). On the surface of the workpiece, the electrons release energy precisely at the point of impact, where they heat, melt and vaporize material. In electron beam welding, a beam of strongly accelerated electrons is focused on a workpiece via adjustable magnetic fields. Vacuum solutions are indispensable for the application. Electron beam welding has particularly outstanding properties: It can be used for joining the smallest components as well as for large parts. While the history of welding dates back to the Bronze and Iron Ages, today highly specialized procedures are in use that offer certain benefits depending on the application. Welding connects - the manufacturing of countless components is inconceivable without this joining process.
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