| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1603673 | International Journal of Refractory Metals and Hard Materials | 2013 | 5 Pages |
The diamond cutting tools (DCTs) find vast applications in the stone cutting industries. The properties of marbles/stones vary from mine to mine. The main factor judging the performance of the tool is its wear resistance which is primarily affected by materials/process variables and unpredictable working conditions. The DCTs having composition (by wt.%) of 13.5% Cu, 20% Co, 10% FTC, 6% Al, and 1% Mg and balance thermally reduced electrolytic iron powder were blended in a mixer with ball to powder ratio of 10:1 (by wt.%) for 2 h. Then this blended powder is mixed manually with synthetic diamonds (2.88%) and 2% paraffin wax. The blended powder was green compacted to size 20 mm × 10 mm × 4.5 mm in hot-pressed sintering furnace. The sintering response of DCT was studied and it was correlated with its wear performance in dry sliding Pin-On-Disc wear test machine having sintered alumina as the counterface. These specimens were subjected to varying loads (2, 6, 10, and 12 kg) and varying velocities (1, 2, 3, and 4 m/s) for wear test. The 2D contour was drawn to establish transition in wear modes from adhesive wear to abrasive wear.
► Diamond cutting tools are manufactured using electrolytic iron powder. ► The sintering response of diamond matrix is studied along with wear test. ► 2D contour can be used to locate optimum properties of the materials. ► Wear modes shift from adhesive to abrasive with increasing load and sliding speed.
