What's the Purpose of Braze Filler or Flux?

To create a strong and durable bond between the surfaces of the materials being joined.

The purpose of using braze filler material is to create a strong and durable bond between the surfaces of the materials being joined together. There are various types of braze alloys available, each specifically designed to melt, flow, and effectively bond the materials during the joining process. These alloys ensure proper wetting and bonding, resulting in a successful joint formation.