Title:
COMPRESSIVE FORMING PROCESSES FOR ENHANCING COLLAPSE RESISTANCE OF METALLIC TUBULAR PRODUCTS
Document Type and Number:
Japanese Patent JP2023088936
Kind Code:
A
Abstract:
To provide a method for enhancing the collapse resistance of metallic tubular products.SOLUTION: The method comprises identifying the types of stress applied to change a residual stress profile of a metallic tubular product that has undergone a straightening process to a residual stress profile improved in the collapse resistance. The metallic tubular product is subjected to radial compression processing to control the residual stress profile and to enhance the collapse resistance. The radial compression processing is performed after the metallic tubular product has been subjected to the straightening process.SELECTED DRAWING: Figure 4
Inventors:
PETER W MOORE
LIN BISEN
LIN BISEN
Application Number:
JP2023039378A
Publication Date:
June 27, 2023
Filing Date:
March 14, 2023
Export Citation:
Assignee:
UNITED STATES STEEL CORP
International Classes:
B21J5/06; B21C1/24; B21C37/08; B21D3/02; B21J5/00; B21J5/04
Attorney, Agent or Firm:
Maruyama International Patent Office