Experimental device for obtaining basic performance parameters of pipe hydraulic bulging

An experimental device, hydraulic bulging technology, applied in the direction of applying stable tension/pressure to test material strength, etc., can solve problems such as deviation, inability to obtain material performance parameters, and obstruction of material flow in the radial direction, so as to reduce trial production costs and shorten The effect of the industrialization development cycle

Active Publication Date: 2017-06-06
SHANGHAI HUIZHONG AUTOMOTIVE MFG
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Problems solved by technology

[0003] At present, there are two main methods to obtain the performance parameters of the pipe: one is to use the single-tension test of the plate to determine the material parameters. The test method is simple, but the result data is directly applied to the liquid-filled bulging finite element simulation of the pipe, which will produce large deviations
The other is the traditional pipe bulging test, but due to problems such as sealing and rigid mold clamping, the flow of materials in the radial direction is blocked, friction, etc., and more accurate material performance parameters cannot be obtained.

Method used

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  • Experimental device for obtaining basic performance parameters of pipe hydraulic bulging
  • Experimental device for obtaining basic performance parameters of pipe hydraulic bulging
  • Experimental device for obtaining basic performance parameters of pipe hydraulic bulging

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Embodiment Construction

[0015] Such as Figure 1 to Figure 5 As shown, the experimental device for obtaining basic performance parameters of pipe hydraulic bulging includes a base and two end clamping mechanisms. The end clamping mechanism includes a fixed body and a movable body. The movable body can move axially in the fixed body. The movable body has a structure capable of clamping the ends of the pipe, so that the two ends of the pipe can be clamped by the two end clamping mechanisms respectively. The movable body is an inner and outer clamping block and an adjusting block, and the fixed body is a guide block. The base includes a bottom plate 1 and a fixing plate 2. The outer clamping block 65 is divided into upper and lower clamping blocks 6, 5, and the guide block 43 is also divided into upper and lower guide blocks 4, 3 for easy disassembly and assembly. figure 1 The experimental device for obtaining the basic performance parameters of pipe hydraulic bulging includes bottom plate 1, fixed plate...

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Abstract

The invention provides an experiment device for acquiring pipe hydro-bugling basic property parameters. The experiment device can acquire accurate material performance parameters. The experiment device for acquiring pipe hydro-bugling basic property parameters comprises a base and two end clamping devices, the end clamping mechanism comprises a fixing body and a movable body, the movable body can axially move in the fixed body, and the movable body has a structure capable of clamping a pipe end so that two ends of the pipe can be respectively clamped by the two end clamping mechanisms.

Description

Technical field [0001] The invention relates to an experimental device for pipe hydraulic bulging, in particular to an experimental device for obtaining basic performance parameters of pipe hydraulic bulging. Background technique [0002] The liquid-filled bulging technology of pipes has a great relationship with pipe performance parameters, such as strain hardening index n, anisotropy index r, etc., and the accuracy of these parameters affects the accuracy of finite element simulation technology and the process of thin-walled structural parts. Optimization has a significant impact, so it has become an urgent problem in the automotive industry and aerospace industry. [0003] At present, there are two main methods to obtain the performance parameters of pipes: one is to use the single tensile test of the plate to determine the material parameters. The test method is simple, but the result data is directly applied to the finite element simulation of the pipe liquid-filled bulging, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/12
Inventor 武海王韬叶勇董新陆红军
Owner SHANGHAI HUIZHONG AUTOMOTIVE MFG
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