Variable-focus laser-heating thermal fatigue test bed

Abstract

The invention discloses a variable-focus laser-heating thermal fatigue test bed which comprises a variable-focus laser device and a workbench, wherein the variable-focus laser device is installed above the workbench, the variable-focus laser device includes a cross arm which can be adjusted up and down, the cross arm is installed on a stand column, a laser transmitting aperture is fixedly formed in the right end of the cross arm, the lower end of the laser transmitting aperture is connected with a focus lens, and the stand column is fixed on a base body of the workbench. According to the variable-focus laser-heating thermal fatigue test bed with the way adopted, local heating measurement can be conducted according to specimens of different types. The size of a heating range can be controlled by means of adjusting the focus of the lens. Moreover, the specimens can be unequally heated, so that simulation can accord with actual heating conditions, and the thermal fatigue degree of the specimens can be measured out.

Description

technical field [0001] The invention relates to the field of mechanical engineering, in particular to a variable-focus laser heating thermal fatigue test bench. Background technique [0002] The operation of machinery is often accompanied by heat generation. Production, processing, and power output will make mechanical components withstand high temperatures, and fatigue damage to components caused by this is quite common. The reason is that the temperature of the components changes repeatedly, and the stress generated during this process is difficult to eliminate, and some components are unevenly heated, which makes the internal stress too concentrated, thus destroying the internal structure of the mechanical parts. However, uneven heating of tiny components is always a major problem for debuggers. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a kind of variable-focus laser heating thermal fatigue test bench,...

AI Technical Summary

Problems solved by technology

The reason is that the temperature of the components changes repeatedly, and it is difficult to eliminate the stress generated in the process, and some components are unevenly heated, which makes the internal stress too concentrated, thus destroying the internal structure of the mechanical parts.

However, uneven heating of tiny components is always a major problem for debuggers

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