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Heat-force coupled fatigue and wear accelerated testing apparatus and method

A technology of experimental device and experimental method, which is applied in the direction of measuring device, wear resistance test, instrument, etc., can solve the problems of single function of test device and expensive equipment, so as to ensure reusability, low manufacturing cost of equipment, and reduce test cycle and test cost effects

Inactive Publication Date: 2016-07-20
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a test mode that can provide a variety of hot working process environments, a short test cycle and a simple structure of the thermal-mechanical device for the defects of single function and expensive equipment in the prior art. Accelerated Experiment Apparatus and Method for Coupling Fatigue / Wear

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  • Heat-force coupled fatigue and wear accelerated testing apparatus and method
  • Heat-force coupled fatigue and wear accelerated testing apparatus and method
  • Heat-force coupled fatigue and wear accelerated testing apparatus and method

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0040] Such as figure 1 As shown, the accelerated experimental device of thermal-mechanical coupling fatigue / wear of the embodiment of the present invention includes a control system 1, and also includes:

[0041] The torsion-compression system includes a motor 4 connected to the control system 1 and an electro-hydraulic push rod 2. The motor 4 is connected to a heating and loading mechanism 6 for fixing the blank 11; the electro-hydraulic push rod 2 is used to fix the sample, and according to the control The control signal sent by the system 1 pushes the sample 10 and the blank 11 into contact wi...

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Abstract

The invention discloses a heat-force coupled fatigue and wear accelerated testing apparatus and method. The apparatus comprises a control system and also comprises: a torsion-compression system for fixing a sample, wherein the torsion-compression system pushes the sample to be in loaded contact with a blank according to control signal sent by the control system and drives a heating loaded mechanism to rotate so that the blank and the sample are subjected to a fatigue and wear test; a cooling and lubricating system for spraying a cooling lubricant to the sample and the blank in the fatigue and wear test according to a control signal sent by the control system; a sensing heating system for heating the sample and blank in the fatigue and wear test according to a control signal sent by the control system. The apparatus of the invention is simple in structure, high in universality and low in manufacture cost, and thermal fatigue and wear testing cost is greatly reduced.

Description

technical field [0001] The invention relates to the field of performance testing and analysis of hot working dies, in particular to an accelerated experimental device and method for thermal-mechanical coupling fatigue / wear. Background technique [0002] Hot work dies are tooling used to make heated metal or liquid metal into desired products, such as hot forging dies, hot extrusion dies, hot stamping dies, die-casting dies and glass forming dies, etc. The working status of the dies is repeated Heated and cooled, so that the metal on the surface of the mold cavity undergoes repeated thermal expansion and contraction, that is, repeated tensile and compressive stresses. Hot working dies, especially hot forging dies, are subjected to both thermal and mechanical loads, resulting in failures caused by wear, fatigue cracks, plastic deformation and other defects, making the dies must be replaced after a period of use. Therefore, the failure of the mold increases the economic cost, ...

Claims

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Application Information

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IPC IPC(8): G01N3/56
CPCG01N3/56G01N2203/0005G01N2203/0073G01N2203/0202G01N2203/0226G01N2203/0228G01N2203/0266
Inventor 王华君周小光洪峰姚亮燕松山谢冰孙博韩念
Owner WUHAN UNIV OF TECH