Three-dimensional thermoplastic honeycomb plate product and production method thereof

The invention relates to a three-dimensional thermoplastic honeycomb plate product and a production method thereof. The three-dimensional thermoplastic honeycomb plate product comprises an upper surface layer, a lower surface layer and a middle honeycomb core layer, and at least one of the upper and lower surfaces of the three-dimensional thermoplastic honeycomb plate product has different heights in a vertical direction, and is concave-convex in shape. The production method comprises the following steps: 1, producing the three-dimensional honeycomb core layer; 2, heating the upper surface of the three-dimensional honeycomb core layer and the upper surface layer; 3, applying the upper surface layer to the upper surface of the three-dimensional honeycomb core layer; 4, heating the lower surface layer and the lower surface of the three-dimensional honeycomb core layer; and 5, applying the lower surface layer to the lower surface of the three-dimensional honeycomb core layer. The method realizes manufacturing of