Electrically-assisted hot forming method and device for large-size thin-wall part
A technology for thin-walled parts and electric assistance, applied to the device for coating liquid on the surface, forming tools, drying gas arrangement, etc.
Pending Publication Date: 2022-01-18
KUNMING UNIV
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Problems solved by technology
[0005] The purpose of the present invention is to solve the existing problems in the hot forming of large-sized thin-walled parts, and propose a large-sized sheet metal parts electric auxiliary heating forming device and method with wide application range, convenient operation, low cost, simple structure and high flexibility
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[0016] attached figure 1 Shown is the introduction of the overall structure of the electric-assisted thermoforming device for large-scale thin-walled parts, with figure 2 Shown is the structural schematic diagram of heating, forming and moving mechanism. The sheet material is fed to the processing area by the guide roller 4, and its surface is treated by the washing mechanism 5, the drying mechanism 6 and the coating mechanism 7 before heating, and then the processed sheet material is heated by the heating plate 11 , using the temperature sensor 16 to collect the temperature of the sheet, and finally forming the required parts through the punch 9 and the die 12 .
[0017] In the washing process, the washing liquid used is an organic solvent such as absolute ethanol or acetone solution, which quickly cleans the organic compounds on the surface of the sheet, thereby enhancing the adsorption capacity of the surface; during the drying process, the resistance wire and fan are use...
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Thermal forming of sheet metal parts is usually carried out in a heating furnace, so that the sizes of the parts are limited, the complexity of forming equipment is improved. In order to meet the increasing requirement for rapid thermal forming of the large-size sheet metal parts in the manufacturing field, the invention relates to an electric auxiliary hot forming method and device for large-size thin-wall parts. The method is characterized in that a plate does not need to be heated and formed in the heating furnace, so that the size range of the parts which can be formed by the plate is increased, before heating, the plate needs to be subjected to surface cleaning, drying and coating treatment, then an electric heating plate is used for heating the upper surface and the lower surface of the plate, a temperature sensor is used for measuring the temperature, after the needed forming temperature is reached, an upper die and a lower die start to move for forming, and meanwhile the connecting rod mechanism is used for driving a sliding block to horizontally move to enable the heating plate to leave a forming area. The method is fast in heating, high in forming efficiency, simple in equipment structure, wide in forming range and low in cost. The defect that large-size parts cannot be formed due to the fact that existing sheet metal part hot forming is limited in the heating furnace is effectively overcome.
Description
technical field [0001] The electric-assisted thermal forming method and device for large-size thin-walled parts of the present invention belong to the technical field of advanced sheet material plastic forming processing. Background technique [0002] Sheet metal parts are widely used in the industrial field. In the traditional sheet metal forming process, the stamping process plays an important role. It has important characteristics such as high efficiency, low cost, and suitable for mass production. However, in recent years, with the progress of the society and the development of the economy, the development of the manufacturing industry is also very rapid, and the concept of lightweight design continues to appear in all walks of life, especially in the automotive field and the aerospace sector. As far as titanium alloy is concerned, its heat resistance, strength, plasticity, toughness, formability, weldability, corrosion resistance and biocompatibility are good, and it is...
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IPC IPC(8): B21D22/02B21D37/16B21D37/18B21C51/00B05C9/04B05C9/14C23G5/032F26B21/00
CPCB21D22/02B21D37/16B21D37/18B21C51/00B05C9/04B05C9/14C23G5/032F26B21/001F26B21/004
Inventor 李正芳高正源安治国
Owner KUNMING UNIV