Define the following: i. Annealing ii. Normalizing – NABTEB QUESTION

1. Annealing: This is a heat treatment process which is used to produce softening and to improve machinability of hand or hardened steel. It relieves internal stress and strain which may be caused by machining, previous heat treatment or by cold working operations.

2. Normalizing: Normalizing is defined as a heat treatment process which relieves internal stresses in steel due to forging, machining or cold-working.