Drawing forming process of aluminum alloy deep paraboloid cylindrical part

A forming process and paraboloid technology, applied in forming tools, metal processing, metal processing equipment, etc., can solve the problems of difficult control of surface quality and dimensional accuracy of parts, poor product consistency, low drawing efficiency, etc., and achieve dimensional accuracy. , Simple design, high drawing efficiency

Active Publication Date: 2020-02-18
SICHUAN AEROSPACE ZHONGTIAN POWER EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the above problems, the present invention provides a deep drawing forming process of aluminum alloy deep parabolic cylindrical parts, which is used to solve the problems of low drawing efficiency of parts, poor product consistency, difficulty in surface quality and dimensional accuracy of parts in the existing technology problem of control

Method used

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  • Drawing forming process of aluminum alloy deep paraboloid cylindrical part
  • Drawing forming process of aluminum alloy deep paraboloid cylindrical part
  • Drawing forming process of aluminum alloy deep paraboloid cylindrical part

Examples

Experimental program
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Embodiment 1

[0042] Such as Figure 1-9 As shown, a deep drawing forming process of an aluminum alloy deep parabolic cylindrical part comprises the following steps:

[0043] Step 1: Calculate and determine the diameter D of the blank, and determine the diameter of the blank according to the principle of equal surface area. The blank here can be a circular plate with a thickness of 2 mm;

[0044] Step 2: Deep drawing the blank into a large cylinder 51 whose diameter is equal to the cylinder diameter of the deep paraboloid 111. The shape of the blank, the diameter of the blank and the minimum drawing coefficient of the aluminum alloy sheet determine the number of drawing. Under the premise that the diameter of the large cylinder 51 is equal to the diameter of the deep paraboloid 111 and the large end 52 has an oblique flange edge, calculate Determine the size and drawing process diagram of each drawing process;

[0045] Step 3: Take the inclined flange edge of the big end 52 as the stress ...

Embodiment 2

[0051] Such as Figure 1-9 As shown, on the basis of the above-mentioned embodiments, this embodiment provides a more specific deep-drawing process. That is, in step 1, the calculation and determination of the diameter of the blank is based on the surface area of ​​the blank equal to the surface area of ​​the qualified part 11 plus the trimming allowance, and the diameter D of the blank is calculated.

[0052] Preferably, in step 2, the drawing coefficient is calculated according to the formula m=d / D, and the drawing process diagram and size are determined; wherein, d is the diameter of the neutral layer of the deep paraboloid 111 cylinder, in millimeters, and D is the diameter of the blank , in millimeters. Calculate the drawing diameter of this process according to the drawing coefficient of each time and the diameter of the previous process, determine the arc radius of drawing, and then calculate the drawing height according to the principle that the surface areas before a...

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Abstract

The invention relates to the technical field of drawing forming processes, in particular to a drawing forming process of an aluminum alloy deep paraboloid cylindrical part. The process is used for solving the problems of low drawing efficiency, poor product consistency and difficult control of part surface quality and dimensional accuracy in the prior art. The process comprises the steps of calculating and determining the diameter D of a blank; drawing the blank into a stepped cylindrical semi-finished product with an inclined flange edge at the large end, and calculating and determining the drawing frequency, drawing process sizes and drawing process diagrams; taking the inclined flange edge at the large end as a stress point, and drawing and expanding the deep paraboloid through a drawing die; straightening the inclined flange edge at the large end into a cylindrical shape equal to the diameter of the cylinder of the deep paraboloid; shaping the deep paraboloid and a large cylinder by using a shaping die; and obtaining the qualified part by turning the large end face. Accordingly, the quality of the surface of the part can be improved, the dimensional accuracy of the surface of the part is easier to control, the drawing efficiency is higher, and the product consistency is better.

Description

technical field [0001] The invention relates to the technical field of deep drawing forming technology, in particular to a deep drawing forming process of an aluminum alloy deep parabolic cylindrical part. Background technique [0002] The outer cover is an aluminum alloy thin plate deep paraboloid sheet metal part in a key model undertaken by our company, and the part has a deep paraboloid. Because the relative height of the part is small, the relative thickness is small, the diameter ratio of the large and small ends is large, and the diameter ratio reaches 6.5, so the overall deep drawing of the part is difficult. [0003] In the prior art, the part is formed by integral deep drawing, which makes it difficult to control the quality and dimensional accuracy of the part surface, low drawing efficiency, and poor product consistency. Therefore, we urgently need a deep drawing process that can make the surface quality and dimensional accuracy of the outer cover easier to cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/20B21D3/00B21D37/10B21C51/00B23P23/04
CPCB21C51/00B21D3/00B21D22/20B21D37/10B23P23/04
Inventor 冯定艳石勇唐小虎肖永印
Owner SICHUAN AEROSPACE ZHONGTIAN POWER EQUIP CO LTD
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