![](/assets/images/picto-drapeau-france-3a76576a5d60a512053b4612ab58dae5.png)
2. Electron beam welding
2.1 Principle
The tool used in this process is the electron beam generated in a gun, which gives it its power and enables it to be focused. The electrons, endowed with mass and electrical charge, come from an emitting material (forming a cathode), in which they are naturally present and free, and from which they are extracted by thermoelectric effect under vacuum (the material is brought to high temperature under high vacuum) and electrical attraction. Electrical attraction accelerates them, giving them kinetic energy in accordance with the simple laws of mechanics.
Calculating the power of a beam: an electron of mass m (9.107 × 10 –31 kg) and charge e (1.602 × 10...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference
This article is included in
Material processing - Assembly
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Electron beam welding