Abstract. The amount of spring-back of plate produced after stamping is one of the factors affect the assembling quality of the plate type heat exchanger (PTHE), which affect sealing property of the exchanger and the heat exchanging efficiency. The forming process of plate and the spring-back of PTHE plate were designed to be studied based on DYNAFORM software. The results of simulation and calculation showed that the maximum thinning rate is 30% and thickening rate 8% in some small region, and the maximum spring-back amount of the whole plate is less than 0.9°. It is also shown that the maximum spring-back lies in the position near the edge of plate, and in the chosen eight locations, they are 0.78°, 0.26°, 0.39°, 0.42°, 0.16°, 0.30°, 0.17° and 0.16° respectively with good PTHE assembly quality.

No abstract