Spur bevel gears, as an indispensable element for momentum
transfer between intersection axes, have been widely used in
mechanical, automotive, marine, aeronautical and astronautical
industries. At present, the vast majority of spur bevel gears are fabricated
by metal cutting, in which large quantities of metal chips
are inevitably produced as waste and even worse flow lines become
discontinuous, thus degrading mechanical properties such
as fatigue strength and corrosion resistance. Moreover, due to the
complex shape, complicated tooling design and high load requirements,
many of the mechanical components, such as spur bevel
gears, have also raised a formidable challenge to the conventional
precision forging technology beyond its current level of technology.
Under such circumstances, incremental forming, particularly
rolling-type incremental forming processes are becoming increasingly
attractive in forging industry