Method and device for forming half-mold of metal flow field plate of mini-type fuel cell in laser shock mode

The invention provides a method and device for forming a half-mold of a metal flow field plate of a mini-type fuel cell in a laser shock mode. The method comprises the steps that according to the designed shape and the designed size of a flow channel of the metal flow field plate, a template provided with a groove with the same shape and the same size is machined, and a motion path of laser beams is well planned according to the shape and the size of the flow channel; a control system controls the motion direction, the path and the machining speed of the laser beams according to a track and a whole flow field is formed through accumulation of plastic forming. The device for forming the half-mold comprises a workbench base, a blank pressing device, the control system and a forming system. According to the method and device, the snake-shaped metal flow field plate can be formed, machining is simple, accuracy and efficiency are high, cost is low, and popularization and application of the metal flow field plate of the fuel cell and a mini-type PEMFC are facilitated.