Abstract
Additive Layer Manufacturing (ALM) is an advanced technology to
produce quality gears of metals and plastics. Some significant benefits such as
capability to handle complex gear shapes and design, and produce near net-shaped
gears; resource efficiency; and rapid product development etc. make this process a
sustainable alternate to the other processes of gear manufacturing. This paper sheds
light on the development of some of the important additive layer manufacturing
processes such as Stereolithography, Fused Deposition Modeling, and 3D Printing
to manufacture gears. The article aims to facilitate researchers and encourages them
to do further research and development for improved gear quality, process
productivity, and sustainability.