Sintering Effect on Cutting Tool Material

Bronze-based Co-Ni-Sn alloy cutting tools used in natural stone cutting processes in our country are produced by powder metallurgy method. By selecting four different sintering temperatures in the production, the effect of the sintering temperature on the surface properties of the marble cutting tools was investigated. Synthetic diamond particles have been incorporated into the metal dust at certain ratios to provide stone cutting properties to the samples. Using the hot pressing technique as a method, the sintering temperature is; 600 oC, 650 oC, 700 oC and 750 oC were selected. The sintering pressure was 30 MPa, the sintering time was 3 minutes and the treatments were carried out in an argon gas atmosphere. Microstructure images of specimens with different sintering temperatures were produced.