Combination Construction Chassis

Combining Brazing Methodologies in Chassis Design

While dip brazing and vacuum brazing cannot be combined directly on the same chassis wall (for example, a chassis wall that was vacuum brazed cannot have folded fin added via dip brazing), there are ways to combine both methodologies to create a more flexible and cost-effective design.

Bolted/Bonded Combination of Brazed Components

It can be advantageous to combine vacuum brazed components with dip brazed components through the bolted/bonded method. This approach allows for a flexible design that meets the end requirements while keeping costs in check. A common example of this is a combination of liquid-cooled and air-cooled chassis components:

•  The liquid-cooled portions of the chassis might be vacuum brazed.
•  The air-cooled portions might be dip brazed.
•  The two parts are then bolted and bonded together to form a complete assembly.

Addressing Size Limitations

Another reason for mixing brazing methodologies is to overcome size limitations. For larger chassis designs with liquid passages through the base and side walls, it may be too difficult or prohibitively expensive to fabricate the entire structure as a single piece.

In this case, you can vacuum braze the part independently, then use a bolted methodology with an O-ring to create a leak-free connection between the different sections. This method provides a practical solution for creating large, complex chassis designs without compromising on performance or cost.

Get in Touch

For more information or assistance with designing a custom solution, please contact us. We are happy to help with your chassis design needs and ensure the best methodology is chosen for your application.