Composite forming method for thin-wall special-shaped part

A technology for composite forming and special-shaped parts, applied in forming tools, metal processing equipment, manufacturing tools, etc., can solve problems such as difficult realization and complicated rolling forming process, reduce pressure, solve scratches or tears, improve The effect of product quality

Active Publication Date: 2021-06-01
西安西材三川智能制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, roll forming technology has certain limitations. It is easy to realize for general thick metal plate part

Method used

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  • Composite forming method for thin-wall special-shaped part
  • Composite forming method for thin-wall special-shaped part
  • Composite forming method for thin-wall special-shaped part

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0049]Example 1

[0050]This embodiment includes the following steps:

[0051]Step 1, according to the product product, i.e., the nominal diameter DN is 200 mm, the wall thickness is 0.5 mm, the wall thickness is selected to select TA2, and water cut is selected to obtain a circular slab;

[0052]Step 2, the circular slab obtained in the step first cleans the surface of oil and debris and coating the high temperature resistant anti-oxidation coating of the thickness of 0.2 mm to 1.0 mm, which is placed in the heating furnace to heat at a temperature of 200 ° C. 0.5h, then quickly lifting and looking forward, placed on the first lower mold 5 of the punching mold and assembles the first pressure plate 3, using the first lock member 2, the first pressure plate 3, the circular slab and the first down The mold 5 is locked, and then the first upper mold 1 is placed at the circular slab in the first pressure plate 3, and the opening press drives the first upper mold 1 to perform the first thermal s...

Example Embodiment

[0062]Example 2

[0063]This embodiment includes the following steps:

[0064]Step 1, according to the purpose product, ie, a nominal diameter DN is 300 mm, a layer of 3 mm of a wall thickness is selected to select a titanium plate and a water cut is performed to obtain a circular slab;

[0065]Step 2, the circular slab obtained in the step first cleans the surface of the surface of oil and debris and coating a high temperature resistant anti-oxidation coating having a thickness of 0.2 mm to 1.0 mm, and is heated under the temperature of 600 ° C in the heating furnace. 1h, then quickly lifting and looking forward, placed on the first lower mold 5 of the stamping mold and assembled the first pressure plate 3, using the first pressure plate 3, a circular slab and the first downward mold using the first locking member 2 5 lock, then place the first upper mold 1 at the circular slab in the first pressure plate 3, open the punching machine to drive the first upper mold 1 to perform the first ther...

Example Embodiment

[0075]Example 3

[0076]This embodiment includes the following steps:

[0077]Step 1, according to the product product, i.e., a nominal diameter DN of 100 mm, a stainless steel thin-walled portion of the wall thickness is 0.5 mm, and the stainless steel plate is selected and cut to obtain a circular slab;

[0078]Step 2, the circular slab obtained in the step first cleans the surface of oil and debris, placed under the heating furnace to heat 1 h under the temperature of 200 ° C, then quickly lift and find positive, placed in a stamped mold. The first pressure plate 3 is assembled on the first lower mold 5, and the first block 2, the circular slab and the first down mold 5 are used, and the first upper mold 1 is placed in the first The circular slab in the pressure plate 3 is opened, and the first upper mold 1 is opened to perform the first thermal stamping of the circular slab, forming a first receetle on the circular slab, and obtains the first stamping member 4- 1, such asfigure 1 Indicat...

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Abstract

The invention discloses a composite forming method for a thin-wall special-shaped part. The method comprises the following steps that firstly, a plate is selected according to a target thin-wall special-shaped part and is cut to obtain a round plate blank; secondly, the round plate blank is subjected to first-time hot stamping to obtain a first stamping part; thirdly, the first stamping part is subjected to second-time hot stamping to obtain a second stamping part; fourthly, the second stamping part is trimmed through numerical control machining to obtain a semi-finished product; fifthly, the semi-finished product is subjected to first-time rolling flanging to obtain a first rolling part; sixthly, the first rolling part is subjected to second-time rolling flanging to obtain a second rolling part; and seventhly, the second rolling part is subjected to third-time rolling flanging to obtain the thin-wall special-shaped part. According to the method, stamping and rolling are combined, work hardening and stress concentration are reduced or eliminated through multi-die multi-time hot stamping and multi-die multi-time rolling flanging, it is guaranteed that the hot stamping and rolling forming process is completed, meanwhile, the defects such as bumps, wrinkles or snap are reduced or eliminated, the forming precision is improved, the product quality of the thin-wall special-shaped part is improved, and the forming period is shortened.

Description

technical field [0001] The invention belongs to the technical field of molding, and in particular relates to a composite molding method for thin-walled special-shaped parts. Background technique [0002] It is not only difficult to guarantee the quality of the product by using the traditional molding method to prepare thin-walled special-shaped parts, but also the cost is high, which is not conducive to mass production. Using the stamping process can produce thin-walled special-shaped parts with high quality, which saves time and effort compared with sintering and machining processes. [0003] The object of the stamping process is metal. The process essentially uses the plastic deformation of the metal, and also uses the mold and stamping equipment to exert pressure on the sheet, so that the sheet is separated into a specified shape or plastically deformed to obtain a conforming shape or The parts prepared by this process are called stamping parts. The surface quality of t...

Claims

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Application Information

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IPC IPC(8): B21D37/10B21D37/16B21D35/00B23P15/00
CPCB21D37/10B21D37/16B21D35/002B23P15/00
Inventor 王丽朱亮杨华李格妮王鹏飞黄张洪李军刘利
Owner 西安西材三川智能制造有限公司
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