One should go for brazing when permanent and strong metal to metal joints is required. Mechanically fastened joints such as threaded, staked, riveted, etc. does not have the strength similar to that of brazed joints. Also the braze joints posses the high resistance to shock and vibration, or leak-tightness.
Metal adhesive bonding and soldering will give you permanent bonds, but generally neither can offer the strength of a brazed joint. Strength of braze joint is equal to or greater than that of the base metals themselves. Joint streght produced by brazing can withstand temperatures more than 90 deg Celsius. If you want metal joints that are both permanent and strong, it’s best to narrow down your consideration to welding and brazing.
Welding and brazing both use heat in the joining process. They both use filler metals. They can both be performed in mass production of products. Consider brazing when the following are required in the metal joining,
Which method to go for Welding or Brazing ? Is depends on the following factors,
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