NOVELTY - A metal or ceramic plate is manufactured by forming an intermediate plate product. The intermediate product is then subjected to final shaping by placing it between at least two engraved molding tool parts, which are then stricken against each other to establish high relief pattern within field(s) region(s).    USE - The method is used for the manufacture of metal or ceramic plates useful in e.g., fuel cells or heat exchangers.    ADVANTAGE - The method is economical and provides a finished plate with high dimensional accuracy and acceptable density.    DETAILED DESCRIPTION - Manufacture of a plate (2) of metal or ceramic material involves forming an intermediate product (1). The intermediate product has a first portion (11) which is adapted to be utilized in forming high relief patterned field(s) (3), and second portion(s) (12) adapted for forming broad edge portions (4). The field(s) on the side(s) of the plate is high relief patterned so that relief with high projections and alternating deep valleys (9) or recess (8) are formed on the plate side within the area of the field(s), and a thin web (10) is formed between the sides of the plate. The intermediate product formed is then placed between at least two engraved molding tool parts, which are movable relative to each other. At least one of the molding tool parts is high relief engraved, and at least one of them is a punch. The tool parts, when maximally brought together, form a mold cavity corresponding to the final shape of the finished plate within the regions of the high relief patterned field(s) and at least near the final shape of the edge portions. The high relief pattern within the region(s) of the field(s) is established by striking the engraved tool parts against one another. The punch is stricken against the intermediate product so that the material within the regions of the first portion is caused to flow and fill the mold cavity to establish the high relief pattern essentially without transportation of material between the first and second portions. The broad edge portions have a thickness, which is larger than the mean thickness of the plate within the region(s) of the high relief patterned field(s).    DESCRIPTION OF DRAWING(S) - The figures show cross-sectional views of the intermediate product and the finished plate.    Intermediate product (1)    Plate (2)    High relief patterned field (3)    Edge portions (4)    Recess (8)    Valleys (9)    Thin web (10)    First and second portions of intermediate product (11, 12)