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In-situ cup drawing device

A cupping, in-situ technology, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of inability to maintain the loaded state, complex equipment, etc., and achieve the effect of reducing experimental costs, small size, and ensuring accuracy and rationality.

Inactive Publication Date: 2017-06-06
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the object of the present invention is to provide an in-situ cupping device to solve the problems that the existing in-situ experimental equipment is too complicated or unable to maintain the loading state during the experiment

Method used

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Embodiment Construction

[0014] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0015] Such as figure 1 The in-situ cupping device shown includes a base 6, a cylinder 3 obliquely arranged on the base, a pressing part 1, a transitional pressing bar 4 and a loading part 5, and the bottom of the transitional pressing bar 4 is in contact with the loading part 5 , the top end of the cylinder 3 places the sample piece 2 and is compressed by the pressing part 1 , and the transition pressure rod 4 is pushed into the inner cavity 32 of the cylinder 3 by the rotation of the loading part 5 at the bottom end.

[0016] In this embodiment, the pressing part 1 is a blanking nut, the loading part 5 is a loading nut, and the inclination between the axis of the cylinder and the vertical direction is 70°, which is suitable for EBSD testing in common electron microscopes, and can also be used as needed Pick a specific other angle. The t...

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Abstract

The invention relates to an in-situ cup drawing device, comprising a base, a cylinder arranged on the base in an inclined way, a compression part, a transitional press rod and a loading part, wherein the bottom of the transitional press rod is contacted with the loading part; a sample piece is arranged on the top end of the cylinder and is compressed by the compression part, and the bottom end of the cylinder pushes the transitional press rod into the cylinder by means of the rotation of the loading part. The in-situ cup drawing device can control the loading condition and maintain a loading state by controlling the precession amount and precession speed, thus being suitable for experiments in sample rooms with narrow electron microscopes.

Description

technical field [0001] The invention belongs to the field of physical property testing and relates to an in-situ cupping device. Background technique [0002] The use of high-strength sheet metal forming materials has increased greatly in recent years. In order to improve the production efficiency of sheet metal processing and save production costs, it is necessary to conduct in-depth and detailed research on the microstructure evolution process in the sheet metal forming process. The stress state of sheet metal is a typical plane stress state, which is different from the uniaxial stress state during uniaxial tension. Therefore, special test methods are required to measure the formability of sheet metal. One such test that has been widely used is the Erikson cupping test. The national standard GB / T4156-2007 points out the principle of the cupping test: a punch with a spherical end is punched against a sample clamped in the pad die and the die to form a dent until a penetrat...

Claims

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Application Information

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IPC IPC(8): G01N3/08G01N3/02
CPCG01N3/08G01N3/02G01N2203/0019G01N2203/0037
Inventor 黄光胜夏大彪黄伦潘复生
Owner CHONGQING UNIV
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