Qing Dong

US Patent:

20190366473, Dec 5, 2019

Filed:

Aug 13, 2018

Appl. No.:

16/102049

Inventors:

XIAO DONG - Kirkland WA, US
QING DONG - Kirkland WA, US

International Classification:

B23K 20/12

Abstract:

The invention discloses a semi-solid additive manufacturing equipment and its manufacturing procedure. The equipment comprises a friction stir tool, a metal substrate and the additive metal material. The friction stir tool applies force to fixate the additive metal material to the metal substrate. The friction stir tool rotates, generate heat by making friction with the additive metal material and cuts into the additive metal material after it turns into semi-solid form. The friction stir tool moves along the direction of the additive metal material while continue applying force to fixate the metal material to the metal substrate. The said additive manufacturing equipment applies the concept of semi-solid formation, friction stir welding, and machinery theory to additive manufacturing and 3D printing. The results are improved process efficiency, enhanced product quality, increased material selections and cost reduction.