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Magnesium alloy product punching shaping method

A stamping forming, magnesium alloy technology, applied in the direction of manufacturing tools, heat treatment process control, other manufacturing equipment/tools, etc., can solve the poor mechanical properties of products, magnesium alloy die-casting forming process is difficult to meet the requirements of 3C product applications, die-casting forming Low yield rate and other issues, to achieve high product yield, save manufacturing costs, and less burr waste

Inactive Publication Date: 2006-10-25
苏州有色金属研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the molten metal fills the mold cavity under high speed and high pressure, there are many pores inside the product of this process, which needs to be repaired. If there are too many holes and the size is too large, it is not conducive to repair, and the product can only be remelted and reprocessed.
Therefore, the yield of die-casting is low, and the mechanical properties of the product are poor.
Moreover, the wall thickness of products produced by die casting method is limited to more than 0.8mm
These shortcomings make it difficult for the magnesium alloy die-casting process to meet the application requirements of 3C products

Method used

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  • Magnesium alloy product punching shaping method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Cut a magnesium alloy thin plate with a thickness of 1mm to make a rectangular plate blank of 110×70mm;

[0020] (2) heat treatment billet, annealing at 280 ° C for 1 hour, and the billet is cooled with the furnace;

[0021] (3) Place the rectangular slab blank in the blanking mold, and the blanking is formed into a blanking workpiece;

[0022] (4) Heat the blanked workpiece to 160°C and keep it warm for 0.5 hours;

[0023] (5) The workpiece is quickly placed in the drawing die, and stretched into a box-shaped piece;

[0024] (6) The box-shaped part is placed in the punching die, and the punching becomes a semi-finished product;

[0025] (7) Trimming and other processing of semi-finished products;

[0026] (8) Subsequent surface treatment of semi-finished products;

[0027] (9) Prepare 1mm thick magnesium alloy thin-walled parts.

Embodiment 2

[0029] (1) Cut a magnesium alloy thin plate with a thickness of 0.5mm to make a rectangular plate blank of 110×70mm;

[0030] (2) heat treatment billet, annealing at 300°C for 1.5 hours, the billet is cooled with the furnace;

[0031] (3) Place the rectangular slab blank in the blanking mold, and the blanking is formed into a blanking workpiece;

[0032] (4) Heat the workpiece after blanking to 80°C and keep it warm for 1 hour;

[0033] (5) The workpiece is quickly placed in the drawing die, and stretched into a box-shaped piece;

[0034] (6) The box-shaped part is placed in the punching die, and the punching becomes a semi-finished product;

[0035] (7) Trimming and other processing of semi-finished products;

[0036] (8) Subsequent surface treatment of semi-finished products;

[0037] (9) Prepare 0.5mm thick magnesium alloy thin-walled parts.

Embodiment 3

[0039] (1) Cut a magnesium alloy thin plate with a thickness of 0.4mm to make a rectangular plate blank of 110×70mm;

[0040] (2) heat treatment blank, annealing at 250 ° C for 1 hour, and the blank is cooled with the furnace;

[0041] (3) Place the rectangular slab blank in the blanking mold, and the blanking is formed into a blanking workpiece;

[0042] (4) Heat the workpiece after blanking to 50°C and keep it warm for 1.5 hours;

[0043] (5) The workpiece is quickly placed in the drawing die, and stretched into a box-shaped piece;

[0044] (6) The box-shaped part is placed in the punching die, and the punching becomes a semi-finished product;

[0045] (7) Trimming and other processing of semi-finished products;

[0046] (8) Subsequent surface treatment of semi-finished products;

[0047] (9) A thin-walled part with a thickness of 0.4 mm is prepared.

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PUM

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Abstract

The invention discloses a method for punching and forming Mg alloy product. The process is: first to cut alloy blank and heat it, then to anneal at 150-300DEG C, then cool and put it into a blanking mould, blank it and heat it to 25-160DEG C and then stretch. The stretched product is set in the punching die to form the semi-product, at last finish the edges to get the product. So the process can improve the quality of the product, the forming ability of the wall and the mechanical character.

Description

technical field [0001] The invention relates to a magnesium alloy manufacturing process, in particular to a magnesium alloy stamping forming process that can improve the high-quality product rate and thin-wall forming ability. Background technique [0002] Magnesium alloy has many advantages such as light weight, high dimensional stability, anti-electromagnetic interference, excellent processing characteristics, excellent rigidity-to-weight ratio, good heat transfer and electrical conductivity, and recyclability, making it widely used in structural parts and processing. The application and demand of components has risen sharply. Most 3C (computer, communication and consumer electronics) equipment, auto parts, hand tools, transportation and other industries are markets where magnesium alloy technology can be applied. [0003] The currently used magnesium alloy forming process is mainly the die-casting method. The process is to heat and melt the magnesium alloy into a liquid ...

Claims

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Application Information

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IPC IPC(8): B23P23/04B21D35/00C21D1/26C21D11/00
Inventor 闫蕴琪翁文凭陈琦张慧钟皓詹志强
Owner 苏州有色金属研究院有限公司