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Equal-temperature hot drawing forming device and method for controlling wall thickness uniformity of component

A technology for controlling components and uniformity, applied in forming tools, manufacturing tools, metal processing equipment, etc., can solve problems such as bottom thinning and uneven deformation of blanks, achieve uniform deformation, eliminate uneven deformation, and increase thickness

Active Publication Date: 2019-07-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Equal-temperature hot drawing forming device and method for controlling wall thickness uniformity of component
  • Equal-temperature hot drawing forming device and method for controlling wall thickness uniformity of component
  • Equal-temperature hot drawing forming device and method for controlling wall thickness uniformity of component

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specific Embodiment approach 1

[0029] Specific implementation mode one: combine figure 1 To illustrate, this embodiment is an isothermal deep-drawing forming device for controlling the uniformity of the wall thickness of a component, including a thermoforming press 1, a mold and a gas cooler 8, wherein the mold includes a template 2, a fixed plate 3, an air inlet pipe 4, an outlet Air pipe 5, punch 6 and die 7; template 2 is assembled on the hot pressing plate on the upper side of the thermoforming press 1, and the die 7 is assembled on the lower hot pressing plate of the thermoforming press 1, and the punch 6 passes through The fixed plate 3 and the template 2 are airtightly fixed, the inside of the punch 6 is provided with a cavity, the punch 6 is arranged above the die 7, the axes of the punch 6 and the die 7 coincide, and the inside of the template 2 An air inlet pipe 4 and an air outlet pipe 5 are provided. One end of the air inlet pipe 4 extends into the cavity of the punch 6 and is close to the botto...

specific Embodiment approach 2

[0031] Embodiment 2: This embodiment differs from Embodiment 1 in that the depth of the air outlet pipe located in the cavity of the punch 6 is smaller than the depth of the air inlet pipe.

specific Embodiment approach 3

[0032] Specific embodiment 3: The forming method of the isothermal hot drawing forming device for controlling the uniformity of the wall thickness of the component described in the specific embodiment 1 is specifically carried out according to the following steps:

[0033] 1. Install the mold on the thermoforming press;

[0034] 2. Heat the thermoforming press to the thermoforming temperature, put in the sheet material, keep it warm for 10-60 minutes, and then pass the cooling gas into the punch through the air inlet pipe. When the temperature of the punch drops to the bottom preforming temperature, deep drawing is carried out Forming, after the punch and die are closed, stop feeding the cooling gas, keep the pressure for 5 to 30 minutes, and raise the temperature of the punch to the thermoforming temperature;

[0035] 3. Open the mold, take out the formed parts, cool to room temperature, inspect and accept the parts, and complete an isothermal hot drawing forming method that ...

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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...

Claims

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Application Information

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IPC IPC(8): B21D22/20B21D37/16
CPCB21D22/20B21D37/16
Inventor 卢振苏畅蒋少松
Owner HARBIN INST OF TECH
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