Expert Solutions for Demanding Material Joints

Vacuum brazing enables high-quality joints for a range of materials, including copper, steel, nickel, and ceramics, even for complex shapes and large surfaces. As experienced providers, we offer expert advice and solutions for everything from single parts to full-scale production.

With 14 vacuum furnaces in Wettenberg and Jena (Germany), we ensure flexible processing and top-quality results for your brazing needs.

Find out more about the Technology

Service

As a long-standing service provider in the area of vacuum brazing, we can offer comprehensive brazing advice based on the latest developments in brazing and material technology. From one-time parts to small- and medium-scale production and all the way to mass production.

A total of 14 vacuum furnaces of differing useful volumes are available for vacuum brazing at the Wettenberg and Jena locations.

Application

Vacuum brazing opens up new design options and freedoms in many fields of application, especially with regard to flexibility in joint design. The solder can be applied in advance, allowing even areas that are no longer accessible after assembly to be joined. The exceptionally pure atmospheres result in visually appealing joints—with the result that rework is no longer necessary. The use of modern high-performance materials results in improved component characteristics, which noticeably strengthens the competitive position of our customers. Even a combination of the joining process and heat treatment (internal link to vacuum heat treatment) is possible.

Procedure

The procedure takes place in a vacuum furnace, minimizing thermal stress on the base materials and preventing oxidation or distortion. Even complex geometries and large-surface joints can be reliably brazed, and the process can be combined with heat treatment for enhanced material properties.

One of the key functions of vacuum brazing is the flexibility it offers in joint design, allowing solder to be applied in advance so that even inaccessible areas can be joined. The exceptionally clean vacuum atmosphere ensures visually flawless, high-strength, and corrosion-resistant joints without the need for rework. This method is suitable for single parts, small and medium series, as well as for mass production, making it ideal for a wide range of applications and industries.

Advantages

Low thermal stress on the base materials
Virtually no annealing colors (scaling) or distortion of the brazed components
Exceptionally high strength and corrosion-resistance all the way to properties resembling the base materials
No expenditure on rework
Brazing points that are difficult or impossible to access externally and large-scale parts can be joined easily

Worker loads metal components into the large open chamber of an high vacuum brazing furnace.

Soldered part with copper on a dark blue surface.

Worker loads a tray of metal components into the open chamber of a large high vacuum brazing furnace.

View into the vessel of a high vacuum brazing furnace

FAQ

Is it possible to perform vacuum brazing for large quantities?

Vacuum brazing is equally as suitable for joining single parts as it is for series production. Depending on the size of the component or the furnace, up to several hundred components can be processed simultaneously in a single furnace cycle. Fully-automated process management allows the systems to operate without supervision and ensures reproducible component quality.

Can I also have entire assemblies manufactured and brazed?

We are also happy to manufacture entire assemblies for you based on your drawings. We can also assume responsibility for scheduling, material procurement, storage, mechanical fabrication (turning, milling, grinding, eroding, etc.), and quality assurance.

What requirements must components for brazing fulfill?

A design that is adapted to suit the brazing technology used is a key criterion for successful vacuum brazing. This includes the dimensioning and position of the brazing gap as well as the choice of solder and the associated process parameters. Offering advice on designs that are compatible with brazing technology is part of our core expertise—just talk to us.

Interested in our vacuum brazing service?

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