Plastic is not a common base metal used in metal brazing due to its low melting point and poor strength at elevated temperatures.

Flux plays a crucial role in metal brazing by removing oxides and impurities from the metal surfaces, ensuring a clean and strong bond between the base metal and the filler metal.

Tin-based alloys are not commonly used as filler metals in metal brazing due to their low strength and poor resistance to corrosion.

Metal brazing offers higher strength compared to soldering due to the formation of a metallurgical bond between the base metal and the filler metal.

Arc welding is not a common heating method used in metal brazing as it generates excessive heat and can damage the base metal and the filler metal.

The strength of a brazed joint is primarily determined by the composition of the filler metal, which influences its melting point, strength, and corrosion resistance.

Metal brazing is not commonly used for assembling electronic components due to the potential damage to sensitive components from the high temperatures involved in the process.

Preheating the base metal before brazing helps to reduce the risk of thermal shock, which can occur when the hot filler metal is applied to the cold base metal, causing it to crack or warp.

Acid-based fluxes are not commonly used in metal brazing due to their corrosive nature and the potential for damage to the base metal.

Post-brazing cleaning is essential to remove flux residues, which can be corrosive and affect the strength and appearance of the brazed joint.

Laser brazing is not a common type of metal brazing due to its high cost and limited availability compared to other brazing methods.

Induction brazing offers more precise heating compared to torch brazing, allowing for better control over the temperature and reducing the risk of damaging the base metal or the filler metal.

Edge joints are not commonly used in metal brazing as they are more difficult to braze and provide weaker joints compared to other joint designs.

The melting point of a filler metal is primarily determined by its composition, which includes the proportions of different elements or alloys.

Touching the brazed joint immediately after brazing can cause burns due to the high temperatures involved. It is important to allow the joint to cool down before handling it.