Plunge grinding experiments were carried out on CSS-42L stainless steel with the white fused alumina wheel.The grinding forces were measured with variations in accumulated material removal volume.Then the morphologica...Plunge grinding experiments were carried out on CSS-42L stainless steel with the white fused alumina wheel.The grinding forces were measured with variations in accumulated material removal volume.Then the morphological features of worn grinding wheel were analyzed by optical microscopy and the grinding temperatures were measured with a thermocouple.For comparison,C45 steel was ground under the same conditions.The results indicated that the grinding forces of CSS-42L were at least twice that of C45 steel.When the accumulated removal volume overcame 375mm^3,strong adhesion was found between the abrasives and workpiece CSS-42L.Nevertheless,adhesion was hardly found after 800mm^3 workpiece C45 steel was removed.In order to enhance the machining property of CSS-42L,a brazed CBN wheel was incorporated into the grinding of CSS-42L,and the grinding forces and temperatures were found significantly decreased,whose maximum decreasing amplitude was about 70%and 80%,respectively.展开更多
To improve the tribological performance of CSS-42L bearing steel,smooth surfaces(SSs),groovetextured surfaces(GSs),GSs with Sn-Ag-Cu(GSs-SAC),and GSs with Sn-Ag-Cu-Ti_(3)C_(2)(GSs-SACT)were prepared on CSS-42L.In addi...To improve the tribological performance of CSS-42L bearing steel,smooth surfaces(SSs),groovetextured surfaces(GSs),GSs with Sn-Ag-Cu(GSs-SAC),and GSs with Sn-Ag-Cu-Ti_(3)C_(2)(GSs-SACT)were prepared on CSS-42L.In addition,experimental studies were conducted on tribological properties.The obtained results indicated that GSs-SACT exhibited the best anti-friction and noise reduction performances.These remarkable tribological performances were attributed to the synergistic effects of grooves,Sn-Ag-Cu,and MXene-Ti_(3)C_(2).The inconsistent rules of frictional forces were improved by the grooves and SACT,which inhibit the friction-induced noise.The micro-nano size-effects of MXene-Ti_(3)C_(2) enhanced the repairing effect and anti-friction property of composite lubricants,which improved the profile characteristics of GSs-SACT.展开更多
基金supported in part by the National Natural Science Foundation of China(Nos.51305200,51235004)the Natural Science Foundation of Jiangsu Province(No.BK20130805)
文摘Plunge grinding experiments were carried out on CSS-42L stainless steel with the white fused alumina wheel.The grinding forces were measured with variations in accumulated material removal volume.Then the morphological features of worn grinding wheel were analyzed by optical microscopy and the grinding temperatures were measured with a thermocouple.For comparison,C45 steel was ground under the same conditions.The results indicated that the grinding forces of CSS-42L were at least twice that of C45 steel.When the accumulated removal volume overcame 375mm^3,strong adhesion was found between the abrasives and workpiece CSS-42L.Nevertheless,adhesion was hardly found after 800mm^3 workpiece C45 steel was removed.In order to enhance the machining property of CSS-42L,a brazed CBN wheel was incorporated into the grinding of CSS-42L,and the grinding forces and temperatures were found significantly decreased,whose maximum decreasing amplitude was about 70%and 80%,respectively.
基金This work was supported by the Guangdong Basic and Applied Basic Research Foundation.
文摘To improve the tribological performance of CSS-42L bearing steel,smooth surfaces(SSs),groovetextured surfaces(GSs),GSs with Sn-Ag-Cu(GSs-SAC),and GSs with Sn-Ag-Cu-Ti_(3)C_(2)(GSs-SACT)were prepared on CSS-42L.In addition,experimental studies were conducted on tribological properties.The obtained results indicated that GSs-SACT exhibited the best anti-friction and noise reduction performances.These remarkable tribological performances were attributed to the synergistic effects of grooves,Sn-Ag-Cu,and MXene-Ti_(3)C_(2).The inconsistent rules of frictional forces were improved by the grooves and SACT,which inhibit the friction-induced noise.The micro-nano size-effects of MXene-Ti_(3)C_(2) enhanced the repairing effect and anti-friction property of composite lubricants,which improved the profile characteristics of GSs-SACT.
