Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for eliminating seaming coarse grains of rolling vane

A technology of rolling blades and bites, which is applied in metal rolling, engine components, mechanical equipment, etc., can solve the problems of blade performance impact, abnormal coarse grains, etc., and achieve the effect of uniform grains

Inactive Publication Date: 2010-01-06
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the rolling process of the blade, there are abnormal coarse grains at the tenon of the blade and the transition R to varying degrees. This is an unavoidable technical problem that cannot be avoided in the traditional cold-rolling manufacturing process of the blade body directly after the billet is made by hot die forging. Coarse grains in this part will affect the performance of the blade

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
  • Method for eliminating seaming coarse grains of rolling vane
  • Method for eliminating seaming coarse grains of rolling vane
  • Method for eliminating seaming coarse grains of rolling vane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The material is the GH150 alloy grade 5 rectifier blade as the carrier, and the blade forging is designed by the equal proportion margin method. The process route is extrusion pre-forged billet→finish forging→edge trimming→solid solution→cold correction of blade body edge→solution→cold forging tenon and transfer R (deformation amount 10%~15%)→rolling.

[0028] 1) Design of the pre-forging die: the pre-forging adopts the rhombus design of the blade body, and is extruded on a 160-ton punching machine, and the extrusion heating temperature is 1130°C. The stroke frequency of the slider of the punch press is 32 times / min, the stroke of the slider is 160mm, and the extrusion die is a split die. The deformation of the airfoil from pre-forging to final forging is 50%, and the deformation of tenon is 16%. The joint R between the tenon and the blade body is the place where the metal flow is the most violent, and a cast superalloy is welded at the R to enhance the wear resistance...

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 relates to a method for eliminating seaming coarse grains of a rolling vane, which comprises the following steps: adopting equal-proportion allowances to design the addition of a vane body; directly forming a bar stock into a pre-forging blank through extrusion; performing finish-forging and solution hardening on the pre-forging blank to obtain a vane rough material; using a cold forging die to perform cold forging on a vane tenon and a switching R part of the vane tenon and the vane body before rolling the vane rough material; and directly performing cold rolling on the rough material after the cold forging. The method for eliminating the seaming coarse grains of the rolling vane can roll to a degree without residual vanes once, the vane forge piece body, the switching R part and the tenon grain size satisfy the standard requirements, and the grains are uniform, and the switching R part has no abnormal coarse grain zones.

Description

technical field [0001] The invention belongs to the field of blade rolling. Background technique [0002] During the rolling process of the blade, there are abnormal coarse grains at the tenon of the blade and the transition R to varying degrees. This is an unavoidable technical problem that can not be avoided by the traditional hot die forging billet and the direct cold rolling manufacturing process of the blade body. Coarse grains in this part will affect the performance of the blade. Therefore, a new process is urgently needed so that the blade will not appear "bite coarse grain" during rolling, so as to improve the uniformity of the structure of the blade body, tenon and transfer R, and improve the vibration fatigue strength and Use reliability. Contents of the invention [0003] The purpose of the present invention is to provide a method for eliminating the coarse grains at the bite of the rolled blade, which can cold-roll the blade until there is no margin at one t...

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): B23P15/02B21C23/02B21K3/04B21H7/00
Inventor 崔树森郑渠英李深亮邵勇赵长利关红李治华唐玉良
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION