Wednesday 28 November 2018

Electron beam welding

Why does electron beam welding require a vacuum? How does electron beam machining process work? What is the difference between MiG and Mag? Is hydrogen used for welding?


Using magnetic lenses, by which the beam can be shaped into a narrow cone.

Shallow penetration depths in the order of hundredths of a. Fixtures to hold the parts securely in place during the welding process are devised. Electron Beam Engineering, Inc. Today, we provide precision electron beam welding from our 10square foot facility in Buena Park, California.


The electron beam ( eb ) welding process is used in a variety of industries. Applications range from fully automate high productivity and low cost automotive in-line part production to single part batch processes in the high-cost aircraft engine industry at the other end of the industrial spectrum. PTR-Precision Technologies, Inc.


Advantages of EB Welding technology include a high power density with very low overall heat input an therefore, minimum distortion.

The process develops energy by bombarding the work-piece with a focused beam of high velocity electrons. This high speed stream of electrons is tightly focused using magnetic fields and applied to the materials to be joined. Liquid state welding are those welding processes in which, the metal to metal joint form in liquid or molten state.


This is also classified as a new welding process because it uses electrons kinetic energy to fuse two metal work pieces. The beam is very narrow and the heat affected zone is minimized. The penetration of the weld can be precisely adjusted from near zero to as much as inches. Distortion and metallurgical effects are much less than other types of welding such as TIG and MIG.


Welding of thick to thin material and dissimilar metals is easily accomplished. EB welding permits joining of reactive and refractive materials. We are NADCAP approve ISO Certifie and Air Agency Certified. In electron - beam welding , the workpiece is bombarded with a dense stream of high-velocity electrons. The energy of these electrons is converted to heat upon impact.


A beam -focusing device is include and the workpiece is usually placed in an evacuated chamber to allow uninterrupted electron travel. The heating is very localised and the bulk of the assembly therefore remains cold and stable. There are three main types of electron beam welding : High vacuum (HV-EBW): Workpiece at 10-4–0.


Pa, highest purity welds, deepest penetration,.

Medium vacuum (MV-EBW): Workpiece at 0. Pa, lower purity, wider, more tapere. Non-vacuum (NV-EBW): Workpiece at atmospheric pressure in air. As the electron beam impinges the workpiece, kinetic energy of the electron beams converts into thermal energy resulting in melting and even evaporation of the work material.


Because of the high voltage applied across the cathode and anode. The anode accelerates the electron and its velocity increase and reaches to the range. The pro-beam Group is a global leader in the field of electron beam and laser technology. We specialize in welding, hardening, perforation and surface coating.


Whether in research, the automobile or aerospace industry – our services and systems are represented in virtually every industry. Sister publication to C7. The format for this conference is a two-day event beginning with a tutorial in electron beam welding following by plenary sessions featuring four keynote speakers.

No comments:

Post a Comment

Note: only a member of this blog may post a comment.

Popular Posts