The wear modes and mechanisms of diamonds in Sawing hard stone

Abstract

Four wear modes and four wear mechanisms of diamonds in saw blades are identified in a study of varied segments damaged in field operation of sawing hard stone. The four wear mechanisms are impact-shearing, fatiguing, pulling-out and thermal effects. Surface erosion is the result of thermal effects, while impact-shearing and fatiguing lead to macroand microfracture, and pulling-out results in wholesale dislodgement of diamonds provided the inequalityF_n>M/(μλ-δ) is satisfied.

Keywords

diamond wear / saw blade / wear mechanism