Oct 1, 2009
Gear Manufacturing Process
Gears are used extensively for transmission of power. They find application in Automobiles, gear boxes, oil engines, machine tools, industrial machinery, agricultural machinery, geared motors etc. To meet the strenuous service conditions the gears should have: robust construction, reliable performance, high efficiency, economy and long life. Also, the gears should be fatigue free and free from high stresses to avoid their frequent failures. The gear drives should be free form noise, chatter and should ensure high load carrying capacity at constant velocity ratio. To meet all the above conditions, the gear manufacture has become a highly specialized field. Below, we shall discuss the various materials and manufacturing processes to produce gears.
The various materials used for gears include a wide variety of cast irons, non ferrous material &non – material materials the selection of the gear material depends upon below parameters
i) Type of service
ii) Peripheral speed
iii) Degree of accuracy required
iv) Method of manufacture
v) Required dimensions & weight of the drive
vi) Allowable stress
vii) Shock resistance
viii) Wear resistance.
Recommended Project: Mechanical Project on Gearless Transmission
Gear lopping is extensively used process of gear finishing & it is accomplished by having the gear in contact with one or more cast iron lap gear of true shape the work is mounted b/w centre & is slowly driven by rear lap. It is in term driven the front
lap & at the same time both laps are rapidly reciprocated across the gear face. Use this report for your reference and study.
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