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Showing posts from September, 2016

FUSION JOINING without using any intermediate material

Post 144 by Gautam Shah.
Fusion joining without using an intermediate material, are used to join mainly metals and thermoplastics. Fusion joining is a common term used for many different types of welding processes. The welding processes rely on high temperatures that change the phase of materials to be joined aided by pressure (or impact). For phase change, the materials to be joined should have same softening-melting temperature and nearly similar composition.

Fusion joining as a category may include many other nearly similar processes, but which involve an intermediate to form the joint. There are three categories of such fusion joining systems, Soldering and Brazing,where the work pieces are not melted, yet joined using a meltable filler material, Weldingthe work pieces, and in some instances, the filler material, both are melted, and Chemical fusing or solvent welding (which are actually forms of adhesion fixing), where plastics are joined by solvents to dissolve (soften) the surfa…