The influence of forging temperature, deformation degree and heat treatment on the mechanical properties of ship axles

Forgings of ship axles are the group of middle and large forgings. They are produced by free forging on hydraulic presses, and production technology alone is very complex, careful lasting long time, and very expensive. In aiming observation and innovation of forging and heat treatment technology in this paper are presented performed mechanical testing and structural characteristics examination of forgings made from carbon steel (internal mark LRK). These forgings are one or two times normalisation annealed under the industrial scale conditions.