Manufacturing method of friction welding stirring head

The invention relates to a manufacturing method of a friction welding stirring head, which comprises the following steps of: forging a stirring head rough blank by using H13 die steel according to a forging ratio of 3-5; machining the rough blank to obtain a formed part; and the formed part is subjected to spheroidizing annealing, vacuum quenching and vacuum tempering, and the stirring head is obtained. According to the manufacturing method of the friction welding stirring head, the H13 die steel is subjected to forging and spheroidizing annealing, and the vacuum quenching temperature is controlled to be 1000-1040 DEG C, so that steel defects of the stirring head are reduced, the organization structure is optimized, alloy is fully dissolved, grains are refined, the toughness of the stirring head is greatly improved, and the service life of the stirring head is greatly prolonged. 本申请涉及一种摩擦焊搅拌头的制造方法，包括如下步骤：以H13模具钢锻造搅拌头粗胚，锻造比为3-5；对所述粗胚进行机械加工，得到成型件；对所述成型件进行球化退火、真空淬火和真空回火，得到搅拌头。本申请实施例提供的摩擦焊搅拌头的制造方法，通过对H13模具钢进行锻造、球