Materials and Metallurgical Engineering | Article | Published 2023
The article describes an original method for computational analysis of multivariate physical and mechanical experiments on laser hardening of gin saw blades. The laser processing method is one of the most effective physical and mechanical methods for improving the properties of resistance to fatigue, long-term strength, and corrosion cracking of circular saw blades that operate under conditions of elevated temperatures and cyclic loads. The stages of the analysis of multivariate experiments on hardening the teeth of a circular saw with laser radiation during grinding are described in detail. Based on theoretical studies three main factors have been selected that significantly affect the hardening of saw teeth. Considering these factors the developed technique makes it possible to increase the thinness of the teeth of circular saw blades significantly due to laser hardening, while maintaining their high hardness in thickness. It has been experimentally confirmed that the service life of gin saws has doubled.