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In this paper,we establish the heat flux density function of the contact area between the chip and the tool and the heat density function for micro-textured ball-end milling tools.A thermal stress simulation shows that adhesive wear is prone to happening in the contact area and on the flank face.Heat at the tip of the tool is not so obvious and the temperature distribution gradient for the tool is more uniform.The maximum value for thermal stress along the cutting edge is 2.0782×106Pa,with a decreasing trend along the contact length between the tool and the chip,starting from the cutting edge.Maximum deformation of the tool is mainly concentrated at the cutting edge where it contacts with the workpiece.The maximum deformation value is 1.9445 × 10-9m,and here a decreasing trend is present along the contact length and width between the tool and the chip.