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Aluminium alloy large-sized superplastic gas bulging forming die

A technology for forming molds and aluminum alloys, which is applied in the direction of forming tools, manufacturing tools, metal processing equipment, etc., can solve the problem that the sealing structure cannot meet the sealing requirements of the forming process of large workpieces, and achieve continuous sealing and avoid gas leakage.

Active Publication Date: 2010-08-04
KTK GRP
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to solve the technical problem that the sealing structure of the existing superplastic inflatable forming mold cannot meet the sealing requirements of the forming process of large workpieces, the present invention provides a large-scale superplastic inflatable forming of aluminum alloy Mold, which can ensure the continuous sealing of the mold during the production process

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  • Aluminium alloy large-sized superplastic gas bulging forming die
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Embodiment Construction

[0010] Such as figure 1 and 2 The embodiment of the aluminum alloy large-scale superplastic inflation forming mold shown in the present invention has movable mold 1 and static mold 2, is provided with one deck metal sealing layer 4 on the sealing surface of static mold 2, and this metal sealing layer 4 is in The workpiece is semi-solid during the forming process.

[0011] The trapezoidal mold sealing groove in the present embodiment, even if its structural design is ideal under the situation of processing, owing to being in the position of different size (x, y, z direction), affected by the high temperature zone, the rate of temperature rise (heat conduction) The situation is different, which affects the gap of the groove, so that the local pressure of the formed metal is different, especially in the Δ area, although the design tolerance requirement is small, but in the case of heating, a temperature change occurs, which increases the tolerance range of the gap. Since the me...

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Abstract

The invention relates to a superplastic air-bulking forming die, in particular to an aluminium alloy large-sized superplastic air-bulking forming die which is provided with a moving die and a static die. The sealing surface of the static die is provided with a metal sealing layer in a semi-solid state during the forming process of a workpiece. During the production process, the invention ensures the continuous sealing property, the safety, the reliability, the economy and the convenience of the superplastic air-bulking forming die and is better than other sealing methods beyond comparison. Furthermore, the invention solves the technical problem that the sealing structure of the prior superplastic air-bulking forming die can not meet the sealing requirement of the forming process of a large-sized workpiece.

Description

technical field [0001] The invention relates to a superplastic inflatable forming die, in particular to a large aluminum alloy superplastic inflatable forming die. Background technique [0002] Any shape of aluminum alloy sheet superplastic forming mold must consider the design of the sealing structure. It is a common practice to use sealing rings and sealing grooves. However, under high temperature conditions, when used to process large workpieces, for example, the length of the mold exceeds 2m , When the width exceeds 1m, in the continuous opening and closing movement, this conventional sealing structure cannot meet the sealing requirements of the process. Especially for the sealing of 3D (three-dimensional) complex profiles, the sealing structure is in various areas and different positions. Under high temperature and gas pressure, the sealing conditions of each point have changed. Once the gas pressure exceeds local Weak areas can cause leaks and result in failure of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/10F16J15/16
Inventor 戈建鸣乔心广王亦金刘仁民张建业蒋晓明
Owner KTK GRP
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