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2-Heat Treating - Annealing

Annealing is the process for making material softer while producing uniform material properties. A material can be annealed by heating it to a specific temperature and then letting the material slowly cool to room temperature in an oven. This process is expensive because the oven is unusable during the cool down process.

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The lecturer mentions that annealing is used to soften metal that has been work hardened. Isolate the concept of work hadening for a minute as there are many reasons to anneal metal and not all of them have to do with releiving stresses induced by work harrdening. RS

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