Manufacture of Power Hacksaw Blades From Locally Available Medium Carbon Steel

Abstract

The manufacture of power hacksaw blades using worn out sawmill blades made of medium carbon steel has bean achieved. They were produced through carburization, hardening and tempering processes. The produced power hacksaw blade when compared with the imported one showed the former having a slightly higher wear rate than the latter. The result also showed that the tool life of the produced power hacksaw having a hardness value of 459BHN and the imported one of hardness value 575 BHN was 922.3mins and 1140mins respectively. Although, the imported hacksaw blade has a slightly higher tool life than the produced one, which may due to a higher hardness value, the produced power hacksaw blade compares favourably well with the imported hacksaw blade.

Keywords: Power hacksaw blade, bone charcoal, tooth wear, tooth life, hardness value

Journal of the Nigerian Association of Mathematical Physics, Volume 20 (March, 2012), pp 443 – 446