Allowance removal from green pieces as a method for improvement surface quality of advanced ceramics

operates, respectively. It was found that the distortion of the top region of the sintered workpieces was reduced about 97% when there was 5 mm of allowance removal and 82% for 1 mm of allowance. In the bottom region, the reduction was about 91% for removal of 5 mm of allowance and 48% for 1 mm. Cutting tool wear, cutting force, and surface roughness of green and sintered workpieces were also analyzed. In general, the influence of tool wear on surface roughness of sintered pieces and the correlation between surface roughness of the sintered pieces and the corresponding green ones were observed.