| 摘要 |
PROBLEM TO BE SOLVED: To appropriately control a welding temperature, and provide a manufacturing method for a vehicle part easy in mounting of a sound insulation material and high in sound insulation. SOLUTION: The sound insuration material 4 before foaming is set to the vehicle part 1, a part thereof is foamed by welding, and a after solidification in a state of enveloping ribs 6, the whole body is heated and foamed. |
