Electron Beam Systems

We have been delivering our machines to customers around the world for several decades. We are happy to pass on these long years of experience and the related know-how to our customers.

PTR STRAHLTECHNIK is the specialist in the GBT-Group for chamber systems for welding and drilling and also for EB generators using high voltage technology (up to 150 kV and more).

The basic principle

The quality demands placed on joining and surface engineering are fulfilled by electron beam (EB) technology to a large extent. The centrepiece of any EB system is the generator, whose basic design is similar to that of a tube in a television set.

The electron beam

The amount of power is determined by the accelerating voltage and beam current. Electromagnetic systems manipulate the electron beam (diverting and focussing).
The power density of the fine working spot is as much as 10⁸ W/cm². All beam parameters can be infinitely and accurately changed at high speed so that the beam is easily adjusted to the task.

Electron Beam Systems – Your Plus in the Production

The advantages of the EB-technology

Accuracy and reproducibility

The stability of the small beam diameter in the focus is the basis for high geometrical precision. Nearly all work parameters are controlled electronically and can be simply adjusted to changed tasks. Outstanding reproducibility of the application results is the effect of these characteristics.

Energy efficiency in welding technology

"Based on the analytical criteria provided, electron beam welding performs significantly better than all other common fusion welding processes."

A specialist analysis by Peter Schmidt.

Research and development

PTR, with its capabilities and special knowledge in the area of electron beam technology is an accepted partner for institutes for research and development and also for industrial companies in Europe, Asia and on other continents.

PTR Electron Beam Generator

In the beam generator the electrons are emitted from a wolfram cathode accelerated by 60 to 175 kV to about 2/3 of the speed of light and then focused on the work piece into a beam with high power intensity.

History of EB technology

1952 is seen as the dawn of electron beam technology. The physicist Dr. h.c. Karl-Heinz Steigerwald built the first electron beam processing machine. Much of what is now taken for granted first had to be painstakingly worked out all those years ago.

Glossary

PTR Glossar

Laser welding versus electron beam welding

Based on years of experience, Volkswagen has determined and demanded that hard parts have to be welded by using a 2-bath technology - in addition to the necessary pre-heating anyway.

Elektronenstrahlanlagen

EB Technology