Application of abrasive wear models for katsura wood

Abrasive wear models for woods were proposed from the shapes of cutting edg es and wear debris of the wood. The models were applied to the abrasive wea r on the cross face of katsura (Cercidiphyllum japonicum S. and Z.) wood. W hen the critical grain size effect of abrasive wear was observed under the condition of lighter applied surface pressure, the theoretical wear rate pr edicted from the cutting edge's wear model agreed with the experimental val ue of the large grain sizes of the condition. However, the theoretical valu e from the cutting edges was larger than that of the experiment at large pr essure when the critical grain size effect was not observed. This larger pr edicted value could be explained from the fact that the angle of the cuttin g edge was increased apparently by the wear debris adhering to the edges. O n the other hand, the theoretical wear rate predicted from the debris's wea r model agreed with the experimental value at the large applied surface pre ssure when the critical grain size effect was not observed. However, the th eoretical value from the debris was much smaller than that of the experimen t at the light pressure when the critical grain size effect was observed, w hile the tendency of the theoretical value was the same as the case of the experiment. This smaller predicted value could be explained from the fact t hat the wear rate was estimated to be smaller by the wear debris falling aw ay from the cutting edge.