Manufacturing Processes - Brazing and Soldering II

Cycle times are dependent on heating and cooling times and the quality of the joint is dependent on the care taken preparing the surfaces. Inadequate surface preparation will cause defects due to incomplete wetting of the joints.

Equipment costs are low so consequently the process of brazing and soldering is a low cost option. Costs will increase where automated systems are employed dependent on the level of sophistication required. There is also virtually no waste of the soldering or brazing alloy, particularly where pre-sized charges are use, but the flux used for the process is consumed.

Brazing and soldering, when you consider that you are introducing a layer of material between two surfaces and rely on the chemical and physical bonding of the materials to hold the joint together, can be considered a gluing process for metals.

Abrasion of the surfaces can provide the mechanism for allowing the molten liquid to penetrate into the resulting surface crevices which when solidified effectively anchors the filler material to the surface and holds the parts together mechanically.

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