A kind of hot forming and quenching integrated forming method

A hot forming and hot pressing forming technology, applied in the field of precision sheet metal processing, can solve the problems of material deformation, long cycle time, high energy consumption, etc., and achieve the effects of low cost, less tooling, and low energy consumption

Active Publication Date: 2020-01-21
BEIJING HANGXING MACHINERY MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the influence of thermal stress and uneven heating and cooling during the heat treatment strengthening process, even if mold tooling is used, the formed material is easily deformed again, resulting in high cost, high energy consumption, long cycle and low precision of this method.

Method used

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  • A kind of hot forming and quenching integrated forming method
  • A kind of hot forming and quenching integrated forming method
  • A kind of hot forming and quenching integrated forming method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The thickness of the 2A12 hard aluminum alloy plate used in this example is 2mm, the lower end surface of the deep-drawn part is 70mm×70mm, the accuracy requirement is ±0.2mm, the height is 15mm, the upper end surface is 10mm long, and the center line of the fillet is R3. The accuracy requirements are ±0.1mm.

[0063] Specifically, proceed as follows:

[0064] (1) Plane unfolding: According to the relative position of the aluminum alloy plate, the thickness of the plate required for hot press forming is designed to be 2mm, and the plate size is 114mm×70mm. Grind and pickle the board and apply lubricant.

[0065] (2) Designing the forming die: When designing and manufacturing the hot-pressing forming die for the aluminum alloy plate, it is necessary to enlarge the processing according to the final size of the aluminum alloy plate part, and the enlargement factor is selected as 5‰. Design the diameter of the water inlet pipe and outlet pipe of the cooling device on the ...

Embodiment 2

[0071] The thickness of the 2A12 hard aluminum alloy plate used in this example is 2mm, the lower end surface of the deep-drawn part is 70mm×70mm, the accuracy requirement is ±0.2mm, the height is 15mm, the upper end surface is 10mm long, and the center line of the fillet is R3. The accuracy requirements are ±0.1mm.

[0072] Specifically, proceed as follows:

[0073] (1) Plane unfolding: According to the relative position of the aluminum alloy plate, the thickness of the plate required for hot press forming is designed to be 2mm, and the plate size is 114mm×70mm. Grind and pickle the board and apply lubricant.

[0074] (2) Designing the forming die: When designing and manufacturing the aluminum alloy plate hot-pressing forming die, it is necessary to enlarge the processing according to the final size of the aluminum alloy plate part, and the amplification factor is selected as 3‰. Design the diameter of the water inlet pipe and outlet pipe of the cooling device on the lower ...

Embodiment 3

[0080] The thickness of the 2A12 hard aluminum alloy plate used in this example is 2mm, the lower end surface of the deep-drawn part is 70mm×70mm, the accuracy requirement is ±0.2mm, the height is 15mm, the upper end surface is 10mm long, and the center line of the fillet is R3. The accuracy requirements are ±0.1mm.

[0081] Specifically, proceed as follows:

[0082] (1) Plane unfolding: According to the relative position of the aluminum alloy plate, the thickness of the plate required for hot press forming is designed to be 2mm, and the plate size is 114mm×70mm. Grind and pickle the board and apply lubricant.

[0083] (2) Designing the forming die: When designing and manufacturing the aluminum alloy plate hot-pressing forming die, it is necessary to enlarge the processing according to the final size of the aluminum alloy plate part, and the amplification factor is selected as 7‰. Design the diameter of the water inlet pipe and outlet pipe of the cooling device on the lower ...

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Abstract

The invention discloses a thermoforming and quenching integrated forming method. The thermoforming and quenching integrated forming method is used for machining and forming an alloy plate. The methodcomprises the steps of 1, mounting a forming die onto hot pressing forming equipment, and heating the forming die to the quenching temperature; 2, after the plate is heated to the quenching temperature in a heating furnace, taking the plate out, and fixing the plate into a cavity of a lower die; 3,starting the hot pressing forming equipment, in the process that thermoforming is conducted on the plate when the forming die is gradually closed, cooling the forming die and the plate through a cooling device, and controlling the temperature of the plate to be lowered to complete quenching, so thatthermoforming is completed after the forming die is closed completely; and 4, conducting aging treatment on the formed plate. According to the thermoforming and quenching integrated forming method, quenching is immediately conducted on the alloy plate after thermoforming; fine grain structures are preserved at the high temperature while work hardening is conducted, and material strength is effectively guaranteed; the quenching process is implemented in the die cavity, and it is effectively guaranteed that a formed part does not deform due to thermal stress; and forming precision is high.

Description

technical field [0001] The invention relates to a thermoforming and quenching integrated forming method, which belongs to the field of precision sheet metal processing. Background technique [0002] The formability of alloy sheets at room temperature is poor. Using traditional cold press processing or tailor welding forming methods, the precision is poor, the deformation resistance is large, and it is difficult to form parts with complex shapes. At present, the method of hot forming has gradually replaced the traditional process, such as hot stamping, superplastic forming, hot hydraulic forming technology, hot metal air pressure forming technology, etc., by improving the deformation performance of the material and reducing the deformation resistance of the material, so as to achieve the purpose of forming . However, with the development of lightweight technology, on the one hand, the structural design is gradually simplified, and on the other hand, light alloys such as alum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D22/02B21D37/10B21D37/16C21D8/00C21D1/18
CPCB21D22/022B21D37/10B21D37/16C21D1/18C21D8/00
Inventor 肖瑞韩维群李艳丽李保永秦中环刘奇刘伟徐凯徐柄桐
Owner BEIJING HANGXING MACHINERY MFG CO LTD
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