Friction head and friction additive manufacturing method of adjusting components and synchronously feeding material

A friction head comprising a friction body, a charging part and a feeding part, wherein the charging part and the feeding part are arranged from up to down in sequence and integrally formed;

• an axis of the friction body, an axis of the charging part and an axis of the feeding part are coincided with one another;
• and the charging part and the feeding part are sleeved on the friction body;
• the friction body comprises a grip portion, a connection portion and a friction portion that are arranged from up to down in sequence and integrally formed;
• the grip portion is a cylinder and an outer surface thereof has a grip surface;
• the friction portion is a cylinder, and one end of the friction portion is fixedly connected to the connection portion, and an other end of the friction portion is an inner concave surface;
• and the charging part and the feeding part are sleeved on the friction portion;
• the charging part is cylindrical and a circular through hole is formed in a center of a bottom surface thereof;
• the friction body is arranged in the charging part through the circular through hole;
• a periphery of the circular through hole is located on an upper surface of the feeding part;
• an inner wall of the charging part and the upper surface of the feeding part form an annular upper storage bin together with an outer surface of the friction portion;
• and at least one feeding hole which is symmetrical about the axis of the charging part are formed in the bottom of the charging part;
• and
• the feeding part is of a ring-shaped structure;
• at least one spiral groove extending in a same direction is formed in an inner ring wall of the feeding part;
• the at least one spiral groove extends through the inner ring wall of the feeding part and is symmetrical about the axis of the feeding part;
• the feeding part is sleeved in a lower portion of the friction portion;
• the at least one spiral groove and a lower outer surface of the feeding part form at least one spiral feeding channel;
• and an upper end of each of the at least one feeding channel is communicated with a corresponding one of the at least one feeding hole.