The pinion gear rotates, and the rack gear moves in a straight line. Rack and pinion gears are generally used in steering methods in vehicles and other vehicles. Annealing is a heat treatment utilized to soften metal, to adjust crystalline construction, to relieve internal stress, and to change for cold-working and chopping efficiency. There are a number of forms of annealing in accordance with the applying, corresponding to Full Annealing, Softening, Stress Relieving, Straightening Annealing and Intermediate Annealing. Heat treatment is a course of that controls the heating and cooling of a fabric, carried out to obtain required structural properties …