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Magnesium alloy sheet material flow forming and molding process

A spinning forming and magnesium alloy technology, applied in the field of metal materials, can solve the problems of increased operational skill requirements, increased production costs, and short action time, achieving high production efficiency, improved production efficiency, and less heat loss.

Inactive Publication Date: 2009-02-18
THIXOMAG TECHNOLOGH WUHU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Stamping and forging are carried out on the corresponding mold, which is composed of two parts: concave and convex; in order to make the magnesium alloy have better forming process performance, the magnesium alloy material is carried out under heating during stamping and forging; but due to punching When forging, the force is large, the action time is short, and the plastic forming is completed in a short time, which is prone to a large number of waste products
In order to improve the yield, the production process parameters must be strictly controlled, especially the blank temperature, the temperature of the concave and convex mold, and the heating and holding time. This will not only increase the production cost, but also significantly increase the requirements for operating skills, and waste energy at the same time. The working environment is also relatively poor. Difference

Method used

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  • Magnesium alloy sheet material flow forming and molding process
  • Magnesium alloy sheet material flow forming and molding process
  • Magnesium alloy sheet material flow forming and molding process

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0047] 1. Intercept a magnesium alloy blank 1: The magnesium alloy blank 1 is a deformed magnesium alloy sheet AZ31B, with a thickness of 3.5mm. According to the shape, size and thickness of the molded product, after accurate calculation, the volume of the magnesium alloy blank 1 can be known. quantity.

[0048] 2. Heating the magnesium alloy billet 1: Put the magnesium alloy billet 1 into the heating constant temperature furnace, set the temperature to 310±10°C, and keep the holding time for 60 minutes. It is to homogenize the temperature of the material.

[0049] 3. Heating the spinning mold 2: Spinning the mold 2 and the top block 3 with an oxygen-acetylene flame, and the temperature is between 240 and 280 °C.

[0050] 4. Clamping of magnesium alloy billet 1: Quickly place the heated magnesium alloy billet 1 on the spinning die 2 to ensure the correct clamping position, and quickly move the top block 3 to clamp the magnesium alloy billet 1. The magnesium alloy billet 1 is ...

specific Embodiment approach 2

[0056] 1. Cut out a magnesium alloy blank 1: The magnesium alloy blank 1 is a deformed magnesium alloy sheet AZ61A with a thickness of 3.5mm. According to the shape, size and thickness of the molded product, after accurate calculation, the volume.

[0057] 2. Heating the magnesium alloy billet 1: Put the magnesium alloy billet 1 into the heating constant temperature furnace, set the temperature to 380±10°C, and keep the holding time for 35 minutes. It is to homogenize the temperature of the material.

[0058] 3. Heating the spinning mold 2: use an oxygen-acetylene flame to heat the spinning mold 2 and the top block 3, and the temperature is between 240 and 280 °C.

[0059] 4. Clamping of blank 1: Quickly place the heated magnesium alloy blank 1 on the spinning die 2 to ensure the correct clamping position, and quickly move the top block 3 to clamp the magnesium alloy blank 1, and the magnesium alloy blank 1 is spun The mold 2 and the top block 3 are clamped and fixed.

[00...

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Abstract

The invention discloses a process for spinning and molding a magnesium alloy sheet. The process comprises the following steps: a blank material is cut; a blank material of the magnesium alloy sheet is heated; a mould is heated; the blank material of the magnesium alloy sheet is clamped, spinned and molded; the edge of blank material is trimmed; and the blank material is subjected to postprocessing to obtain a finished product. With the technical proposal, the sheet has good molding capacity; a molded product has smooth surface and good tissue performance and dimension precision, thereby greatly improving the excellent and good rate of the product; the manufacturing process is rapid and stable, improves production efficiency, reduces the defective index, is more favorable for material molding and has less unedged scrap; and when a semifinished product is molded, less unedged scrap is produced, thereby effectively reducing production cost and obviously exalting the mechanical performance of the product.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and relates to a hot-pressing forming process for metal materials, more particularly, the invention relates to a spinning forming process for magnesium alloy sheets. Background technique [0002] Magnesium alloys are the least dense structural metal materials. It has excellent heat transfer and electrical conductivity; good electromagnetic shielding effect; good stiffness, high specific strength, excellent vibration damping and other characteristics, is an ideal industrial metal material. In the past, the application of magnesium alloys was limited to the aerospace field. Recently, with the development of magnesium alloy production technology and the development and improvement of various magnesium alloy forming and processing methods, the wide application of magnesium alloys as structural materials has become a reality, and has aroused great interest in the manufacturing industry. Espe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/16
Inventor 徐章跃赵之良何明修
Owner THIXOMAG TECHNOLOGH WUHU
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