METHOD FOR MANUFACTURING PAINLESS INJECTION NEEDLE AND THE PAINLESS INJECTION NEEDLE

摘要

The present invention relates to a painless injection needle manufacturing method and the painless injection needle, and more particularly, a painless injection needle having an outer diameter of 0.2 mm or less in general is manufactured by a progressive stamping die process and a plating process. It relates to a method and a painless injection needle manufactured thereby. The present invention provides a method for manufacturing a painless injection needle, comprising the steps of: (a) making the tip of a thin plate a pointed plate by primary tentative notching; (b) reducing the thickness of the plate by forging the first tentatively notched plate material and increasing the strength by working hardening; (c) performing secondary bone notching in which the larger area by forging in step (b) is cut out to the original dimensions; And (d) chamfering the sharp tapered portion of the sharp tip cut by secondary bone notching in step (c) and rounding it. (e) forming the chamfered plate into a cylindrical shape; Consists of including.