Abstract: A support system includes a base support to be secured in a process chamber of a production system, and includes at least one positioning element. A workpiece holder has upper and lower faces. The workpiece support has at least one first positioning device. The positioning element and the first positioning device form a pin/hole pair. A section of the pin has a first thermal expansion coefficient. A section of the hole controlling positional accuracy has a second thermal expansion coefficient. In a first alternative, the second thermal expansion coefficient is lower than the first, producing a clamping effect between the pin and hole upon temperature increase of the support system. Alternatively, the first thermal expansion coefficient is lower than the second, producing a clamping effect upon temperature increase of the support system. The invention additionally relates to a method for producing a workpiece.