This research examined the influence of process parameters influencing the deposit of a coating structure Diamalloy 1008 (FeCrMo alloy mixture) applied by oxyfuel highspeed (HVOF) on steel samples grade D2 tool. This type of coating is commonly used as protection against wear and corrosion. But it has the ability to rebuild areas damaged by weathering and erosion. The formulation of the mathematical model of the temperature with respect to the deposition of repair material on the substrate prior to impact, to assess the behavior of the particle trajectory, in order to predict the behavior under the conditions of liquid, slurry and solid.