Internal high pressure forming equipment and method of micro metal T-shaped pipe

Abstract

The invention discloses an internal high-pressure forming device and a forming method for a micro-metallic T-shaped pipe, and relates to the technical field of metal pipe fitting processing. The forming equipment includes a forming die, two shaft end feed punches arranged in a straight line and a forming end balance punch used to limit the forming height of the T-shaped tube. The forming die includes an upper die and a lower die, and the upper die and the lower die are upper Both are equipped with a T-shaped cavity, and each shaft-end feeding punch is connected to a shaft-end feeding power device, and the forming-end balance punch is perpendicular to the two shaft-end feeding punches, and is connected to the forming-end balance power device Connection, one of the two shaft end feed punches is provided with a gas channel, the gas channel is connected to the high pressure gas supply device, and the bottom of the upper die and the top of the lower die are equipped with heating devices. The invention has the advantages of convenient operation and high safety performance, and can realize air pressure internal high-pressure forming of micrometallic T-shaped tubes under high temperature conditions, reduces requirements on forming pressure and equipment performance, and saves manufacturing costs.

Description

technical field [0001] The invention relates to the technical field of processing metal pipe fittings, in particular to an internal high-pressure forming device for a micrometallic T-shaped pipe and an internal high-pressure forming method for a micrometallic T-shaped pipe. Background technique [0002] In the 1990s, with the continuous development of the trend of miniaturization in the manufacturing field, the demand for micro parts is increasing, especially in micro machinery (Micro machine) and micro electro-mechanical system (Micro electro-mechanical system, MEMS) Among them, the typical application is the production of components for electronic products and medical devices. Two trends in scientific and technological research today are giantization and miniaturization. Among them, miniaturization is highly demanded by the market due to its advantages of mass production, high efficiency, high precision, low cost, and less pollution. At present, micro-forming is mainly d...

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Problems solved by technology

However, if the traditional hydroforming equipment is used for processing and forming under the premise of heating, the high temperature condition will easily lead to accidents such as the combustion of the liquid medium. Therefore, considering the limitation of the ignition point of the internal high-pressure liquid medium, it is not suitable for forming under high temperature conditions. To a certain extent, it limits the development of micro-metallic T-shaped tube forming technology

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