Study of Micro-hardness of High-Speed W9Mo4Co8 Steel Plates in Pendulum Grinding by Abrasive Wheel Periphery


  • Yakov Iosifovich Soler Technology and Equipment of Mechanical Manufacture Department, Irkutsk National Research Technical University,
  • Van Canh Nguyen Technology and Equipment of Mechanical Manufacture Department, Irkutsk National Research Technical University,



abrasive wheels, grinding, measure of position and dispersion, micro-hardness, stability of the process, statistics.


In cutting tool assembly, grinding is the most important technological step of the finishing treatment, largely determining the workmanship. An increase of micro-hardness after grinding relative to the original one indicates the dominant role of abrasive tool force impact on the ground surface. A decrease, in contrast, evidences a significant softening under the influence of heat source. This research based on nonparametric statistics to predict the effect of wheel characteristics with abrasives 25A, 92A/25A, 34A, 5A, EKE, 5NQ, TGX, 5SG and with graininess 46 (F46), 60 (F60), 80 with different porosities (structure numbers 6-12), and the expected measures of position and dispersion on the micro-hardness of the surface of a high-speed cutting plate (HSCP) made of W9Mo4Co8 steel. It was found that grinding this HSCP by wheels 5NQ46I6VS3, 5SG46K12VXP, 5SG60K12VXP, 5SG46I12VXP, 25AF46M12V5"?PO, 25AF46M12V5"?PO3, 25АF46M10V5"?PO, 25AF46M10V5"?PO3, 25AF46K10V5"?PO3, 25AF60M10V5"?PO3, 25AF46L10V5"?KF35, EKE46K3V, 92A/25AF46L6V20 occurred without surface softening for 50% of the details from the operating batch.


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How to Cite

Soler, Y. I., & Nguyen, V. C. (2017). Study of Micro-hardness of High-Speed W9Mo4Co8 Steel Plates in Pendulum Grinding by Abrasive Wheel Periphery. Journal of Engineering and Technological Sciences, 49(3), 291-307.