The design and fabrication of porous sintered grinding wheel based on Selective Laser Melting technology

Abstract

Grinding wheels is one of the most important tools in precision machining, which is usually used to realize high surface quality. The common fabrication method of sintered grinding is hot-pressed process, which has technical difficulty to form high proportional and open pores of wheel. To improve the porosity and interconnected pores of sintered grinding wheel, this paper proposes a new method to design and fabricate porous wheel, which is based on Selective Laser Melting (SLM). This method can proactively control the quantity and status of pores in grinding wheel according to different working conditions. In this paper, two types of porous grinding wheel structures are designed and fabricated by SLM technology, and their mechanical properties are tested through compression experiment and simulated by finite element method. The result indicates this method has potential to fabricate high porosity grinding wheel with enough strength.