The present study is concerned with the design of Al 2 TiO 5 /Al 2 O 3 system functionally graded material (FGM). The samples with various volume content of Al 2 TiO 5 were prepared by the powder metallurgy method. The basic material properties of the samples were then tested and used as a basis for predicting the material properties of the transient layers in Al 2 TiO 5 /Al 2 O 3 FGMs. The thermal stresses produced in the fabrication process were simulated by using a finite element method. On the basis of the comprehensive considerations of the minimum residual thermal stress and distribution state, the optimum compositional distribution in Al 2 TiO 5 /Al 2 O 3 FGMs was achieved.

7CrSiMnMoV (HRC65) hardened steel mold was cutted to investigate the effects of cutting parameters (cutting speed, feed speed, radial cutting depth, axial cutting depth) on cutting force and cutting temperature. Cutting was done with the ball-mill tool coating with TiAlN and without coolant with a high-speed. The aim of this study is putting forward the principle of reasonable choice of cutting parameters and optimizing cutting parameters.