Abstract: The wheel-workpiece contact zone is changed due to point grinding inclining angle α and novel grinding wheel with coarse grinding area angle θ. It changes from line contact into point contact in theory and the grinding zone temperature is also changed. In this paper，the grinding zone temperature is simulated by the finite element method. The orthogonal experiments L₁₆(4⁵)was designed and thermocouple measurement was used for grinding experiments. Through range analysis， primary and secondary factors affecting grinding temperature is that coarse grinding area angle θ>cutting depth a_○p>inclining angle α>axial feeding speed v_○f>grinding wheel speed v_○s. The optimum parameters combination of reducing the grinding zone temperature is that θ(20°)， a_○p(0.01mm)，α(1°)，v_○f(0.6mm/min)，v_○s(35m/s). Finally，by means of single factor experiments， the correctness of the simulation was verified and the influence of each parameter on grinding zone temperature was deeply analyzed.

Key words: point grinding, novel grinding wheel, grinding temperature, finite element simulation, orthogonal experiment