Machine Design Prime Elements Quiz

What process involves heating above the transformation range and cooling slowly to soften the metal and increase in machining?

What process involves heating above the transformation temperature and quenching in oil to increase the hardness?

Which process involves reheating to a temperature below the transformation range followed by controlled cooling to attain desired properties of the metal?

What process involves heating to subcritical temperature and holding for a suitable time to reduce internal residual stress?

What is the purpose of tempering in the heat treatment process?

Heat Treatment Processes

Annealing involves heating metal above the transformation range and cooling it slowly. This process softens the metal and enhances its machinability.
Quenching is achieved by heating metal above the transformation temperature and then rapidly cooling it, typically in oil. This treatment significantly increases the hardness of the metal.
Normalizing consists of reheating metal to a temperature below the transformation range followed by controlled cooling. This process aims to refine the grain structure and achieve uniform properties in the metal.
Stress Relief requires heating to a subcritical temperature and maintaining that temperature for a designated time. This process effectively reduces internal residual stress in the metal.
Tempering is a crucial step in the heat treatment process, serving to reduce the brittleness of quenched steel by reheating to a specific temperature. This process helps achieve a balance between hardness and toughness in the metal.

Test your knowledge of prime elements in machine design with this quiz. Explore topics such as heating, transformation range, metal softening, and machining enhancement. Ideal for mechanical engineering students at the University of Rizal System.