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Blade forging preformed blank design method capable of accurately controlling material flow distribution

A material flow, precise control technology, applied in design optimization/simulation, manufacturing tools, metal processing equipment, etc., can solve the problems of increased material cost and forging cost, difficult to achieve, etc., to improve material utilization, reduce forging cost, The effect of improving utilization

Active Publication Date: 2020-03-31
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of aviation technology, blades, which are important parts of advanced aero-engine compressors, have increasingly stringent requirements for raw materials and forging blanks, resulting in a sharp increase in material costs and forging costs, which put forward higher requirements for traditional blade forging. It is not only necessary to provide blade forgings with qualified performance and size, but also to maximize material utilization, improve the dimensional stability of forgings, effectively extend the life of forging dies, and effectively reduce forging costs. For blades, the traditional prefabricated method and design make it difficult to achieve the above requirements

Method used

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  • Blade forging preformed blank design method capable of accurately controlling material flow distribution
  • Blade forging preformed blank design method capable of accurately controlling material flow distribution
  • Blade forging preformed blank design method capable of accurately controlling material flow distribution

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Embodiment 1

[0036] Step 1: Determine the forging direction of the forging, use 3D software, such as UG, to project the outline of the forging onto the 2D image on the forging surface, and perform horizontal segmentation in the 2D image. The number and position of the segmented segments depend on the structure and size of the forging. In principle, the divisions of the forgings with large changes are dense, and the more divisions, the more accurate the calculation results. After division, mark the midpoint of each division line, such as figure 1 As shown, from J 0 Split to J n , and point out the center point;

[0037] Step 2: Mark the center points obtained in Step 1 as P 0 -P n , make a spline through this set of center points, where P 2 -P (n-2) The curvature approximation of the spline line segment can simplify the line segment into a straight line for subsequent preform calculations, such as figure 2 shown;

[0038] Step 3: Pass the center point in step 2 to make the normal ph...

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Abstract

The invention discloses a blade forging preformed blank design method capable of accurately controlling material flow distribution. According to the technical scheme, the traditional design thought isbroken through; slicing type scanning analysis is carried out according to the designed forging structure; according to the novel design method, the prefabricated blank capable of achieving refined metal flow distribution is designed, then preparation of the prefabricated blank is achieved through a traditional blank manufacturing means, and the novel design method can effectively and greatly improve the material utilization rate, improve the deformation control requirement, reduce the equipment striking difficulty, prolong the service life of a die and reduce the forging cost.

Description

technical field [0001] The invention relates to the field of blade forging preform design, in particular to a blade forging preform design method capable of precisely controlling material flow distribution. Background technique [0002] With the development of aviation technology, blades, which are important parts of advanced aero-engine compressors, have increasingly stringent requirements for raw materials and forging blanks, resulting in a sharp increase in material costs and forging costs, which put forward higher requirements for traditional blade forging. It is not only necessary to provide blade forgings with qualified performance and size, but also to maximize material utilization, improve the dimensional stability of forgings, effectively extend the life of forging dies, and effectively reduce forging costs. For the blade, the traditional prefabricated method and design make it difficult to achieve the above requirements. Contents of the invention [0003] In ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F30/17B21D37/10B21C37/00
CPCB21D37/10B21C37/00
Inventor 黄明星鞠秀义汪大成张东丽单善
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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