Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
EXTREMELY SMALL LOT MANUFACTURING METHOD FOR BENT PROFILE PIPE COMPONENT
Document Type and Number:
Japanese Patent JP2018001248
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a reasonable manufacturing method premised on using a general-purpose machine tool or a tool and using a general-purpose pipe material as a starting material as much as possible regarding manufacturing of a small-lot bent profile pipe component.SOLUTION: This extremely small lot manufacturing method for a bent profile pipe component 1 is a method for manufacturing only small lots of the bent profile pipe component 1 having a sectional shape change in the midway and a bent part in the midway with one or both of opening shapes/sizes of both ends different is characterized in that a roughly rectified intermediate workpiece is cut to a desired size including each bent part 10 in a material pipe selection step, then in a bending step, then in a hydroform step, and then in a cutting step, then a diameter and a shape are rectified to desired shapes in a finish rectifying step, and a rectified finish workpiece is obtained by eliminating ring welding in all the steps.SELECTED DRAWING: Figure 1

Inventors:
NAKAJIMA ISAMU
FUJII RYUSAKU
Application Number:
JP2016134076A
Publication Date:
January 11, 2018
Filing Date:
July 06, 2016
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SAKURA KOGYO KK
International Classes:
B21D53/84; B21D3/14; B21D7/06; B21D26/033; B21D26/053; B21D35/00
Attorney, Agent or Firm:
Takahiko Higashiyama