Title:
MANUFACTURING METHOD OF METAL HOLLOW MICROCAPSULE NEEDLE AND METAL HOLLOW MICROCAPSULE NEEDLE
Document Type and Number:
Japanese Patent JP2021115632
Kind Code:
A
Abstract:
To provide a manufacturing method of metal hollow microcapsule needle which includes a tapered portion and has electric conductivity and to provide such a metal hollow microcapsule needle.SOLUTION: A manufacturing method of metal hollow microcapsule needle using a dieless drawing process includes a process in which a tube made of superplastic metal is locally heated and the tube is pulled out while controlling tensile speed to form a tapered portion on the tube and a process in which, after forming the tapered portion, the tube is further pulled out to break the tube.SELECTED DRAWING: Figure 3
Inventors:
FURUSHIMA TAKESHI
Application Number:
JP2021011413A
Publication Date:
August 10, 2021
Filing Date:
January 27, 2021
Export Citation:
Assignee:
UNIV TOKYO
International Classes:
B21C1/00; B21C3/02; B21C9/00
Attorney, Agent or Firm:
Noritaka Yokota
Enoki Yasutaka
Omori Miko
Momoko Akahane
Naokazu Uchiyama
Enoki Yasutaka
Omori Miko
Momoko Akahane
Naokazu Uchiyama