The manufacture method of annular shaped body

The manufacture method of annular shaped body

  • CN 105,228,771 A
  • Filed: 03/28/2014
  • Published: 01/06/2016
  • Est. Priority Date: 03/28/2013
  • Status: Active Application
First Claim
Patent Images

1. a manufacture method for annular shaped body, this manufacture method comprises:

  • forging step, and alloy part carries out forging the forging body with obtained discoideus;

    And looping mill rolling step, looping mill rolling is carried out to the cyclic intermediate prepared by forming through hole in described forging body, with obtained annular shaped body,It is characterized in that, described forging step comprises at least twice warm and hot forging step, and each time warm and hot forging step is implemented all under the following conditions;

    rate of straining is at most 0.5s -1, the absolute value ε

    θ

    1 of the strain of the circumference of described forging body is at least 0.3, and the absolute value ε

    h of the strain of the short transverse of described forging body is at least 0.3, and the ratio ε

    h/ ε

    θ

    1 between the absolute value of strain is in the scope of 0.4 to 2.5.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×