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A kind of magnesium alloy sheet stamping forging composite forming method

A composite molding and magnesium alloy technology, which is applied in the field of stamping and forging composite molding of magnesium alloy sheets, can solve the problems of long working hours, high cost, and low mechanical properties of casting and die-casting parts, so as to reduce complexity, lower downforce requirements, and improve The effect of molding success rate and production efficiency

Active Publication Date: 2020-09-29
上海正玺新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mechanical properties of casting and die-casting parts are low, especially die-casting parts; machining requires a long time and high cost

Method used

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  • A kind of magnesium alloy sheet stamping forging composite forming method
  • A kind of magnesium alloy sheet stamping forging composite forming method
  • A kind of magnesium alloy sheet stamping forging composite forming method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment involves the production process of a finished product whose outer dimensions are 340mm×290mm×10mm, the thickness of the facade is 5mm, and the thickness of the bottom surface is 3.5mm:

[0039] Cut the 3.5mm thick magnesium alloy rolled plate into 640mm width and 1480mm length, stack multiple plates to a thickness of about 100mm, put them into the heat treatment furnace together, and place a 100mm thick flat steel plate on the top of the plate. Heat the heat treatment furnace to 350°C, keep it for 3.5h, and cool down to room temperature with the furnace cooling.

[0040] The cooled plate is taken out from the heat treatment furnace, cut into a size of 370mm×320mm, and blanked through a blanking die.

[0041] The blanked plates are loaded into the preheating furnace, and the temperature is kept at 200°C for 15 minutes.

[0042] At the same time, the drawing die starts to be heated by electricity, the blank die is heated to 300°C, the concave die is heate...

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Abstract

The invention discloses a stamping and forging compound forming method for a magnesium alloy plate; the process includes plate annealing, plate blanking, plate preheating, drawing forming, drawing part annealing, forging preforming, and forging forming. It is characterized in that die forging is carried out on the basis of traditional stamping and deep drawing forming, the elevation of the drawn part is forged and die forged to the required shape, the radius of the bottom fillet is reduced, and the local thickness of the bottom material is increased. Compared with traditional stamping and forming, this method can produce products with more complex shapes.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a stamping and forging composite forming method for a magnesium alloy plate. Background technique [0002] In the field of magnesium alloy stamping processing, the existing methods include isothermal stamping forming method, differential temperature stamping forming method, and step-by-step stamping forming method based on the former two, but none of the above methods can process structures with obvious differences in thickness. pieces. [0003] In the aspect of metal die forging, the pie-shaped metal billet is generally put into the mold, and the metal billet is extruded by the die to generate flow inside the metal billet, and finally form the shape of the inner cavity of the die. This processing method has a great impact on the die forging machine The downforce requirement is extremely high, the investment in equipment is large, and the production cost is high....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C37/02B21J5/00B21J13/02B21D22/20B21D37/10B21D37/16B21C51/00C22F1/06
CPCB21C37/02B21C51/00B21D22/20B21D37/10B21D37/16B21J5/002B21J13/02C22F1/06
Inventor 董斌斌李云良任兵
Owner 上海正玺新材料科技有限公司