Title:
MANUFACTURING METHOD FOR TUBULAR COMPONENT
Document Type and Number:
Japanese Patent JP2022069709
Kind Code:
A
Abstract:
To provide a manufacturing method for a tubular component, by which the tubular component of a target shape can be accurately manufactured.SOLUTION: A manufacturing method for a tubular component includes a preparation step of preparing a plate blank having a hole penetrating therethrough, and a formation step of forming the blank into a tubular component by hole expansion drawing process. In the formation step, an outer diameter portion of the blank before the process becomes one end of the tubular component by the hole expansion drawing process. An inner diameter portion of the blank before the process becomes the other end of the tubular component by the hole expansion drawing process. In the preparation step, an outer-diameter-portion plate thickness (t0_out) of the blank before the process is set to have a first correlation with a target value of a wall thickness (a_up) of the one end of the tubular component. An inner-diameter-portion plate thickness (t0_in) of the blank before the process is set to have a second correlation with a target value of a wall thickness (a_down) of the other end of the tubular component.SELECTED DRAWING: Figure 1
More Like This:
Inventors:
SUGAMA JUNJI
KITORA KOJI
NISHIO KATSUHIDE
NISHIJIMA SHINNOSUKE
OKAMOTO JUNICHI
KITORA KOJI
NISHIO KATSUHIDE
NISHIJIMA SHINNOSUKE
OKAMOTO JUNICHI
Application Number:
JP2020178507A
Publication Date:
May 12, 2022
Filing Date:
October 26, 2020
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
B21D22/26; B21D51/10
Attorney, Agent or Firm:
Hidetoshi Ueba
Tetsufumi Yamauchi
Tetsufumi Yamauchi