Shape optimization of the current body located in the cooling canalThe contribution is the second step of the optimization process introduced on AMEE’13 where the position of cooling canal was searched. In this paper the outward shape of the regulation current body located in the axis of the system is optimized to obtain required temperature on the outward surface of the tube. The algorithm was designed and debugged for simplified model, in which the plunger is replaced by the tube, which is surrounded by thermal source representing cooled glass moulded piece from outward, and the cooling water of temperature 15oC on input flowing through. The state problem is formulated as a stationary heat conduction process. The cost functional is taken as the second power of L2 distance of temperature from the given constant value on the outward boundary of the tube. The results of the numerical optimization to three required target temperatures 700, 750 and 800oC of the outward tube surface together with the distribution of temperatures on the interface between the tube and the heat source before and after the optimization process are presented