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Aluminum alloy constant-temperature fine die forging process

A technology for isothermal precision die forging and aluminum alloy, which is applied in the field of aluminum alloy die forging technology, and can solve the problems of unstable process, excessive forging blanks, and insufficient temperature.

Inactive Publication Date: 2012-05-02
HARBIN ZHONGFEI NEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an aluminum alloy isothermal precision die forging process to solve the problems that the current aluminum alloy isothermal precision die forging die temperature is not enough, the forging blank is too large to produce waste, the process is unstable, and it is easy to stick to the mold.

Method used

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Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0015] Embodiment 1: The method of this embodiment includes the following steps: Step 1: Determine the size of the forging blank;

[0016] Step 2: Heating the forging mold and the forging blank: install the forging mold on the die base of the forging press and heat it to 380±3°C; after heating for 5 hours, heat the forging blank in a pit furnace at a temperature of 480 ±3°C; at the same time, heat the box furnace and set the temperature at 480°C;

[0017] Step 3: After the material temperature reaches, lift the forging blank from the pit furnace and put it into the No. 1 basket of the box furnace, and continue to keep warm;

[0018] Step 4: Apply graphite lubrication on the mold, then place the forging blank on the mold, and the position of the forging blank should be adjusted;

[0019] Step 5: Press the down button of the forging press console to carry out forging until the mold is completely closed. After holding the pressure for 5 seconds, press the up button of the forgin...

specific Embodiment approach 2

[0022] Embodiment 2: In step 1 of this embodiment, the weight of the blank is determined as the net weight of the forging + 0.08kg, so as to determine the size; avoiding waste. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0023] Specific implementation method three: the forging pressure in step five of this embodiment is 7000-8000KN; The upper mold is coated with more graphite to prevent the upper mold from sticking to the mold, and the forming effect is good. Other steps are the same as in the first embodiment.

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Abstract

The invention discloses an aluminum alloy constant-temperature fine die forging process, relating to an aluminum alloy die forging process. Aiming at problems of low temperature, waste generation due to overlarge forging blank materials, unstable process and easiness in soaking a mould of the traditional aluminum alloy constant-temperature fine die forming mould, the aluminum alloy constant-temperature fine die forging process comprises the following steps of: 1, determining a size of a forging piece blank material; 2, heating a forging mould and a forging piece blank material; 3, after the material temperature is reached, hoisting a forging piece blank material in a well furnace outside and then placing a first basket of a box furnace, continuously preserving the temperature; 4, smearing graphite lubricant on a mould, then placing the forging piece blank material on the mould; 5, forging and pressing; 6, starting an ejector rod for ejecting a button, ejecting a forming piece, clamping the forging piece by using a material clamp, placing on a counter top; and 7, grinding burrs on the bottom of the forging piece by using a angle grinder cleanly, and placing on the counter top for reducing the temperature. The invention is suitable for aluminum alloy constant-temperature fine die forging.

Description

technical field [0001] The invention relates to an aluminum alloy die forging process. Background technique [0002] Isothermal die forging, referred to as isothermal forging, is a die forging in which the die is heated to the deformation temperature of the blank and deformed at a low strain rate. Isothermal forging technology has been maturing since the 1970s, and is widely used in the manufacture of important structural parts of aerospace vehicles, and has achieved very obvious technical and economic benefits. [0003] Isothermal forging technology is mainly used in the aerospace industry for the production of difficult-to-form material forgings with complex shapes, thin webs and high ribs, and high internal quality requirements on the surface of forgings. Not only that, compared with conventional die forging, isothermal die forging technology is also an energy-saving technology. However, isothermal die forging is only suitable for medium and small batch production of fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/02
Inventor 李念奎范长龙
Owner HARBIN ZHONGFEI NEW TECH CO LTD
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