An isothermal hot drawing forming device and forming method for controlling component wall thickness uniformity

Abstract

The invention discloses an equal-temperature hot drawing forming device and method for controlling wall thickness uniformity of a component, and relates to the field of equal-temperature hot drawing forming devices and methods by controlling the wall thickness uniformity of the component, which solves the technical problem that in an existing hot drawing technology method, bottom part reduction issevere, and thus blank deformation is nonuniform. The equal-temperature hot drawing forming device includes a hot forming press machine, a die and a gas cooler, wherein the die includes a template, afixing plate, an air inlet pipe, an air outlet pipe, a male die and a female die. The method includes the steps that 1, the die is mounted on the hot forming press machine; 2, heating is conducted, sheet materials are put into, heat insulation is conducted, cooling gas is introduced, drawing forming is conducted, and pressure maintaining is conducted; and 3, the die is opened and is cooled to a room temperature, and inspection and acceptance are conducted. According to the equal-temperature hot drawing forming device and method, circulating helium is introduced into a male die hollow structural cavity through an air passage of an upper male die to lower the temperature of the upper die, the degree of deformation of the contact part of the sheet materials and the upper male die is reduced,the thicknesses of the arc positions of the bottom parts of the sheet materials are increased, and uniform deformation of a formed part is achieved. The equal-temperature hot drawing forming device and method are used for preparing sheet material parts.

Description

technical field [0001] The invention relates to the field of an isothermal hot drawing forming device for controlling the uniformity of the wall thickness of a component and a forming method thereof. Background technique [0002] In the current traditional isothermal hot forming process, for plate members characterized by thin walls and large surface areas, isothermal hot drawing is generally adopted. Due to the high temperature of the part in contact with the mold during the drawing process, the deformation increases. Too large will cause the part of the billet in contact with the mold to be too thin, resulting in uneven deformation and a decrease in tensile strength, and cracking will occur, which is not conducive to improving product quality and production efficiency. At the same time, the liquid cooling speed is not easy to control, and it is greatly affected by the number of cooling times in actual production, which is prone to waste liquid, pollutes the environment, an...

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Problems solved by technology

[0003] The invention aims to solve the technical problem of uneven deformation of the blank due to serious bottom thinning in the existing thermal deep drawing process, and provides an isothermal thermal deep drawing forming device and forming method for controlling the uniformity of the wall thickness of the component

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