Study on subsurface damage of WC-10Co-4Cr coating in planar grinding of cup sand wheels
SHEN Xiandi
JIANG Chen
JIANG Zhenyu
ZHANG Yixuan
WANG Lingqi
PU Guiyuan
Abstract：The subsurface damage depth of grinding WC-10Co-4Cr coating with a cup wheel was investigated in an effort to address the issue that the subsurface damage will cause the coating·s performance to deteriorate.The theoretical formula of single particle grinding force was obtained based on the principles of indentation fracture mechanics and grinding material removal theory.A theoretical subsurface damage depth prediction model was developed based on the cup wheel·s surface grinding properties.The design of the single factor surface grinding test and the single point polishing test was to confirm the model·s accuracy.Analysis was done on how various grinding parameters affected the workpiece·s surface roughness and depth of subsurface damage.The maximum relative error is 15.8%,and the predicted subsurface damage depth agrees with the measured value,according to the results.Surface roughness and subsurface damage depth rise with feed speed and grind-ing depth,but fall with spindle speed.The study has some theoretical significance for directing the process parameter optimization of cup wheel grinding of WC-10Co-4Cr coatings.
Keywords：Cup wheelHard alloy coatingSingle factor testSingle point polishing testSubsurface damage depth
Publication Date：2025-07-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：7( 42-48 )