High-Precision Assembly Solutions for Large Scientific Instruments

CERN’s vacuum brazing capabilities combine precise temperature control with advanced joining techniques to produce high-accuracy, low-deformation assemblies. From metals to ceramics, these processes enable complex, reliable components for cutting-edge accelerator and experimental systems.

Vacuum Brazing: Accuracy through Temperature Control

Vacuum brazing is a joining process where parts are heated uniformly in a controlled atmosphere. This homogeneous temperature rise enables the assembly of components with high dimensional accuracy and minimal deformation. It is particularly useful for materials that cannot be welded by conventional methods, including metals and ceramics. The process also offers design flexibility, making it possible to produce both simple and complex assemblies, whether in a single operation or through multiple successive steps.

Brazing is the joining of components with a filler metal that melts at a lower temperature than the base materials.


Core Vacuum Furnace Capabilities

Metal-to-metal brazing

Working with diverse materials like copper, stainless steel, or niobium.

You will not only join complex, large-scale components but also get hands-on experience developing and using custom tooling for in-furnace support.

Vacuum Heat Treatment

Our expertise in vacuum heat treatment is fundamental. We perform ultra-high vacuum degassing to ensure a perfect vacuum. We optimise parts from a 3D printing to strengthen their structure and performance.

Ceramic-to-Metal Brazing

Master the art of joining ceramics like alumina and sapphire with metals such as titanium and Kovar. This process includes the ceramic metallisation using techniques like PVD deposition

Working with Cutting-edge Technologies

At CERN, you will not be using just any equipment. Our vacuum furnaces are custom-built to deliver exceptional vacuum and cleanliness, putting you in direct control of the technology that powers scientific discovery.

Beyond Standard Furnaces

We master unique heating technologies, including vacuum Induction Brazing for localized heating, and Electron Beam Brazing, a technique that can heat only the joint area on large assemblies.

Metal-to-metal brazing

Working with diverse materials like copper, stainless steel, or niobium.

You will not only join complex, large-scale components but also get hands-on experience developing and using custom tooling for in-furnace support.

Vacuum Heat Treatment

Our expertise in vacuum heat treatment is fundamental. We perform ultra-high vacuum degassing to ensure a perfect vacuum. We optimise parts from a 3D printing to strengthen their structure and performance.


A Long Tradition of Precision Brazing Serving Generations of Experiments

With decades of experience in brazing, CERN has developed and refined techniques to assemble complex accelerator components. This long-standing know-how continues to support today’s projects while evolving to meet the demands of future scientific instruments


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