The electrons hit the workpiece, and their kinetic energy turns into thermal energy, heating the metal so that the sides of the workpiece are joined, and a weld can be formed after freezing. Working of Electron Beam WeldingĮBM is a welding process utilizing heat generated by a beam of high-energy electrons. This heat energy is enough to form a fused joint by joining two metal plates together. When a high stream of electrons strikes the welding plates, its kinetic energy is converted into heat energy. This heat is used to weld two welding plates. This process uses the kinetic energy of electrons to generate heat. It works on the principle of welding electron beam machining. Working Principle of Electron Beam Welding The welding voltage range for low voltage equipment or for thin welding is about 5 – 30 kV and for high voltage equipment or 70 – 150 kV for thick welding. This EBM welding process uses a power source to supply a continuous beam of electrons for the welding process. The pressure range in the vacuum chamber is about 0.1 to 10 Pa. The vacuum is produced by mechanical or electric-powered pumps. Vacuum ChamberĪs you know, this entire process takes place in a vacuum chamber. Welding plates are fastened to the CNC table with the use of suitable fixtures. This welding process uses CNC tables to hold workpieces that can rotate in all three directions. These are the final units of the EBW process. #4 Electromagnetic Lens and Deflection CoilĮlectromagnetic lenses are employed to focus the electron beam onto the workpiece, and the deflection coil deflects the beam to the expected weld area. They all absorb divergent electrons with low energy and provide a highly intense electron beam. There are a series of magnetic lenses that allow only the converging electrons to pass. Its main function is to attract a negative charge, (electrons in this case), giving them a path and not allowing them to deviate from their path. The anode is a positive pole just behind the electron gun. The cathode filament heated up to 2500☌ for the continuous discharge of electrons. This gun is often made of tungsten or tantalum alloys. It is a cathode tube (negative pole) that generates electrons, accelerates them, and concentrates in one place. It is an important equipment of electron beam welding. Gas Welding: Types, Working Principle, Equipment, Application #1 Electron Gun.Resistance Welding: Types, Working, Applications, Advantages.Electromagnetic lens and deflection coil.Read Also: Different Types of Metals and Their Properties Equipment of EBM The machine has a 30KW W2000 computer-controlled hard vacuum beam welder, with a low voltage (60KV) gun. If you want to buy the electron beam welding machine cost around $1,000,000 of EBW-112x102圆6 available in Sciaky. Otherwise, electrons collide with air particles and lose their energy. This entire process takes place in a vacuum. This heat energy is enough to melt the workpieces and join them into one piece. In this welding process, a high stream of electrons strikes the welding plates, where their kinetic energy is converted into heat energy. This welding was invented in 1958 by the German physicist Karl-Heinz. In which, the metal to the metal joint is formed in a liquid or molten state. It is also named a welding process because it uses electrons‘ kinetic energy to join two metal workpieces. Electrons hit the workpiece, and their kinetic energy is transformed into thermal energy, heating the metal so that the sides of the workpiece can be joined and a weld can be formed after freezing.Įlectron beam welding is also a liquid-state welding process. EBM or Electron beam welding is a welding process that uses the heat produced by a beam of high-energy electrons.
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