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<p><b>New page</b></p><div>[[File:Brazing_practice.jpg|Brazing practice|thumb]] '''Brazing''' is a [[metalworking]] process that involves the joining of two or more [[metals]] by melting and flowing a filler metal into the joint, the filler metal having a lower melting point than the adjoining metal. Unlike [[welding]], brazing does not involve the melting of the base metals; instead, the filler metal wets the base metal surfaces and is drawn into the joint by capillary action.<br />
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==Process==<br />
The process of brazing begins with the proper cleaning and preparation of the surfaces to be joined. This is followed by the application of a [[flux]] to prevent oxidation during the heating process. The metals are then aligned and heated to a specific temperature, which is above the melting point of the filler metal but below the melting point of the base metals. Common heating methods include torch brazing, furnace brazing, induction brazing, and resistance brazing. Once the filler metal is introduced, it melts, flows into the joint through capillary action, and upon cooling, solidifies to form a strong, leak-proof connection.<br />
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==Filler Metals==<br />
Filler metals used in brazing come in various compositions, each designed for specific applications and base metal combinations. Common filler metals include [[silver]], [[copper]], [[aluminum]], and alloys such as brass. The choice of filler metal depends on the melting point, mechanical properties, and compatibility with the base metals.<br />
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==Advantages and Disadvantages==<br />
Brazing offers several advantages over other metal joining techniques. It allows for the joining of dissimilar metals, produces less thermal distortion, and can be performed without melting the base metals, preserving their original properties. However, brazing joints can be less strong than welded joints and may not be suitable for high-temperature or high-stress applications.<br />
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==Applications==<br />
Brazing has a wide range of applications across various industries. It is commonly used in the [[automotive industry]] for joining pipes and tubes, in the [[aerospace industry]] for manufacturing components that require precise alignment and minimal weight, and in the [[electronics industry]] for joining small parts where soldering is not feasible. Brazing is also used in the construction of [[jewelry]] and in the production of household items such as [[cookware]] and [[tools]].<br />
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==Safety Considerations==<br />
Safety is an important aspect of the brazing process. Proper ventilation is necessary to remove harmful fumes generated during heating. Protective clothing, gloves, and eye protection are also essential to prevent burns and exposure to intense light and heat.<br />
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[[Category:Metalworking]]<br />
[[Category:Manufacturing processes]]<br />
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