| 摘要 |
A method of forming a heat exchanger stack from a plurality of plates, wherein the plurality of plates includes at least first and second nestable plates formed of an electrically conductive material. Each plate has a generally flat central portion and at least a pair of parallel upturned edges, thereby having a generally trough-like profile. Each plate has a plurality of protrusions which is formed so that, when the plates are in a stacked, nested position, the respective pluralities of protrusions of the first and second plates engage each other, such that the respective central portions of the plates are spaced apart, thereby defining therebetween a space through which a heat exchanging medium may be passed. The method includes placing the first heat exchanging plate in a support, placing the second heat exchanging plate in nesting arrangement with the first heat exchanging plate such that the central portions and the upturned edges of the two plates are spaced apart, and exposing at least the upturned edge portions of the second heat exchanging plate to pulsed electromagnetic energy, so as to apply thereto a kinetic force causing the upturned edge portions to bend away from the pulsed electromagnetic energy source, such that they impinge on the respective edge portions of the first plate, so as to become joined thereto. |
