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Method for controlling machining deformation of thin-walled part

A technology for processing deformed and thin-walled parts, applied in the field of mechanical processing, can solve the problems of high cost, achieve the effects of improving efficiency, reducing production costs, and saving costs

Active Publication Date: 2016-03-30
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses high-precision non-standard tools, and the cost is quite high; encrypted tool paths will double the processing time

Method used

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  • Method for controlling machining deformation of thin-walled part
  • Method for controlling machining deformation of thin-walled part
  • Method for controlling machining deformation of thin-walled part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for controlling machining deformation of a thin-walled part is carried out according to the following steps:

[0024] 1. Proportioning and melting filler: take the filler in proportion, each component in the filler is paraffin wax: liquid paraffin: rosin: glyceride = 9: 1: 1: 1.5; the paraffin wax is heated to 270°C, melt half of the solid paraffin into liquid, add liquid paraffin, mix and heat for 10 minutes, add the mixed powder of rosin glyceride while stirring, mix and heat until completely melted into liquid;

[0025] 2. Pouring filler: The state of the part before pouring filler is as follows figure 1 Shown: by figure 1 It can be seen that the thickness of the blade is very thin, and there is no support between the two blades, and the deformation of the blade is very easy to occur during processing. Protect the parts that need to be poured, using plastic bags: CORTEC BLUE for protection; cool the above liquid filler for 5-10 minutes before pouring, po...

Embodiment 2

[0032] A method for controlling machining deformation of a thin-walled part is carried out according to the following steps:

[0033] 1. Proportioning and melting the filler: take the filler in proportion, each component in the filler is paraffin wax: liquid paraffin: rosin: glyceride=10: 1: 1.3: 1.3; the paraffin wax is heated to 270°C, melt half of the solid paraffin into liquid, add liquid paraffin, mix and heat for 10 minutes, add the mixed powder of rosin glyceride while stirring, mix and heat until completely melted into liquid;

[0034] 2. Pouring filler: The state of the part before pouring filler is as follows figure 1 Shown: by figure 1 It can be seen that the thickness of the blade is very thin, and there is no support between the two blades, and the deformation of the blade is very easy to occur during processing. Protect the parts that need to be poured, using plastic bags: CORTEC BLUE for protection; cool the above liquid filler for 5-10 minutes before pourin...

Embodiment 3

[0037] A method for controlling machining deformation of a thin-walled part is carried out according to the following steps:

[0038] 1. Proportioning and melting the filler: take the filler in proportion, each component in the filler is paraffin wax: liquid paraffin: rosin: glyceride = 10: 1: 1: 1.5; the paraffin wax is heated to 270°C, melt half of the solid paraffin into liquid, add liquid paraffin, mix and heat for 10 minutes, add the mixed powder of rosin glyceride while stirring, mix and heat until completely melted into liquid;

[0039] 2. Pouring filler: The state of the part before pouring filler is as follows figure 1 Shown: by figure 1 It can be seen that the thickness of the blade is very thin, and there is no support between the two blades, and the deformation of the blade is very easy to occur during processing. Protect the parts that need to be poured, using plastic bags: CORTEC BLUE for protection; cool the above liquid filler for 5-10 minutes before pouring...

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Abstract

The invention belongs to the technical field of machining, and relates to a method for controlling machining deformation of a thin-walled part. The method comprises the following steps that 1, a filling agent is prepared and molten, wherein the mass percent ratio of solid paraffin to liquid paraffin to rosin to glyceride is 9-10:1:1-1.5:1-1.5, the solid paraffin is heated so that half of the solid paraffin can be molten into liquid, liquid paraffin is added, mixed powder of rosin and glyceride is added while stirring, and heating is carried out till the solid paraffin is fully molten into liquid; and 2, the filling agent is poured, wherein the part needing pouring is protected, the liquid filling agent is poured after being cooled for 5 minutes-10 minutes, cooling is carried out for 3 minutes after pouring the liquid filling agent by a quarter of volume, the liquid filling agent continues to be poured by a quarter of volume after liquid cannot flow, the step is repeatedly executed till the part needing to be supported is fully covered through pouring, cooling is carried out for 6 hours-8 hours at the natural temperature after pouring is finished, and then subsequent machining can be carried out. The method is used for controlling machining deformation of the part, machining chatter marks on the surface of a blade are eliminated, and subsequent polishing treatment on the blade is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a method for controlling processing deformation of thin-walled parts. Background technique [0002] Thin-walled parts have been widely used in various industrial sectors because of their light weight, material saving, and compact structure. However, due to their own characteristics, thin-walled parts will be affected by cutting force, cutting heat, and machine tool fixtures Due to the influence of various factors such as cutting tools and cutting tools, turning and milling of thin-walled parts has become a very difficult problem in machining. The reason is that thin-walled parts have poor rigidity and weak strength, and are easily deformed during processing, making the The shape and position error increases, which makes it difficult to guarantee the processing quality of the parts. [0003] Taking the blade milling of the blisk as an example, the blade ...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 沈兴辉仲维阔赵玉生
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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