Upsetting method of cake-shapedstainless steel billet

A technology of stainless steel and cake blanks, which is applied in the field of upsetting cake blanks, can solve problems such as uneven deformation of cake blanks, uneven structure and performance of cake blanks, and influence on product structure and performance, so as to achieve uniform deformation and improve the performance of forgings

Inactive Publication Date: 2016-05-04
GUIZHOU ANDA AVIATION FORGING
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with other areas of the cake base, this area has little or no deformation, resulting in uneven deformation of the cake base
The deformation inhomogeneity directly affects the inhomogeneity of the structure and properties of the cake blank, and even has a negative impact on the subsequent forging process, and finally affects the structure and properties of the product.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Upsetting method of cake-shapedstainless steel billet
  • Upsetting method of cake-shapedstainless steel billet
  • Upsetting method of cake-shapedstainless steel billet

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0030] The main chemical element content (percentage by weight) of the steel is: 0.10% to 0.16% of C, 10.50% to 12.00% of Cr, 1.40% to 1.80% of Ni, 1.50% to 2.00% of W, 1.50% to 2.00% of W, The Mo content is 0.35%-0.50%, the V content is 0.18%-0.30%, the Mn content is ≤0.60%, the Si content is ≤0.60%, the S content is ≤0.025%, the P content is ≤0.030%, and the balance is Fe.

[0031] The steps of this method are as follows:

[0032] Step 1: General upsetting.

[0033] Heat a stainless steel bar with a diameter of D and a height of H in a forging furnace to the forging temperature, and keep it warm for a period of time; put the bar on the lower cutting board of the forging press, in order to ensure the deformation of the middle area of ​​the stainless steel cake after upsetting The amount can reach 45% to 55%, and the bar is upset to a height of H 0 =(0.50~0.55)H, to obtain the middle cake base 1, such as figure 2 shown.

[0034] Step 2: Local upsetting of the upper end su...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an upsetting method of a cake-shapedstainless steel billet. The upsetting method comprises the following steps of upsetting a stainless steel bar by a conventional method first such that the deformation of the stainless steel bar reaches 45%-50%; and then locally deforming an end face of an intermediate billet by using a special fixture. Such a method is capable of effectively eliminating defects such as a deformation dead zone occurring in a conventional upsetting method and also capable of effectively improving the structure uniformity of the cake-shapedstainless steel billet, and therefore, the properties of forgings can be improved. The method is applicable to the upsetting of the cake-shapedstainless steel billets.

Description

technical field [0001] The invention relates to an upsetting method for a cake base, in particular to an upsetting method for a stainless steel cake base. Background technique [0002] Upsetting is a forging process that uses a forging press to reduce the height of the metal material and increase the cross-section. It is an important and most basic process in the forging industry. Provide blanks. Usually, during the upsetting process of the cake blank, due to the great friction between the upper and lower cutting boards of the forging press and the upper and lower end surfaces of the bar blank, there will eventually be a certain deformation dead zone on the upper and lower end surfaces of the cake blank (such as figure 1 shown). Compared with other areas of the cake base, this area has little deformation or even no deformation, resulting in uneven deformation of the cake base. The deformation inhomogeneity directly affects the inhomogeneity of the structure and properties...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B21J5/08
CPCB21J5/08
Inventor 江锦权杨晋刘志棋王高周建强
Owner GUIZHOU ANDA AVIATION FORGING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap