Laser tailor-welded blank

The utility model discloses a laser tailor-welded blank. The tailored blank laser welding plate comprises a first sub-plate and a second sub-plate, wherein the first sub-plate is provided with a first side surface; the first daughter board is provided with a first accommodating hole, and the first accommodating hole penetrates from the first side surface to the opposite side of the first side surface; the second daughter board has a second side surface; the second daughter board is provided with a second accommodating hole, and the second accommodating hole penetrates from the second side surface to the opposite side of the second side surface; the first daughter board and the second daughter board are welded and connected to form a welding seam, and the first side face and the second side face are flush; the first accommodating hole and the second accommodating hole are arranged close to the welding seam; the first containing hole and the second containing hole are configured to be used for being filled with heat absorption substances.