Manufacturing method for embedded thermocouple type composite processing temperature measuring sample
A technology of composite materials and thermocouples, applied in metal processing equipment, metal processing machinery parts, measuring/indicating equipment, etc., can solve the problems of poor effect and stability, and achieve improved service life, good fixing effect, and stable and reliable temperature data Effect
Inactive Publication Date: 2015-05-13
DALIAN UNIV OF TECH
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[0003] In view of the poor effect and stability of the current embedded thermocouple temperature measurement sample preparation method, especially the deficiency that the embedded thermocouple temperature measurement can only obtain the instantaneous temperature of the processing point, the present invention invented a built-in thermocouple composite Material processing temperature measurement sample preparation method
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[0013] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings. The preparation method of the embedded thermocouple type composite material processing sample is as follows: firstly, a carbon fiber reinforced composite material sample plate 1 with a size of 30mm×20mm is cut, and the thickness is 3mm. On one side of the carbon fiber reinforced composite material sample plate 1, drill a small hole 2 for an embedded thermocouple with a diameter of 1.6 mm and a hole depth of 10 mm. The center of the small hole is located at the center of the surface. The axes of the holes are parallel to the upper and lower bottom surfaces and the left and right sides. Peel off the sheath at the end of the thermocouple to expose the length of the thermocouple wire slightly longer than 5mm. Starting from the end of the wire, tighten the thermocouple wires together so that the thermocouple wires form mul...
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Abstract
The invention discloses a manufacturing method for an embedded thermocouple type composite processing temperature measuring sample and belongs to the field of cutting area temperature measurement. The manufacturing method is suitable for cutting area temperature measurement in experiments such as carbon fiber reinforced composite drilling and milling. The sample manufactured by the adoption of the manufacturing method is composed of a composite sample plate, a special thermocouple twisted into a twisted shape, adhesive metal, non-metallic instant adhesive and adhesive which is high in heat conductivity and low in electrical conductivity. A small hole is drilled in one side face of the sample plate, the specific thermocouple is buried in the hole, and secondary fixation is performed on the thermocouple through the adhesive metal, the non-metallic instant adhesive and the adhesive which is high in heat conductivity and low in electric conductivity. The thermocouple in the sample has a good fixation effect, temperature data obtained in the machining process are stable, and temperature monitoring in the whole machining process can be achieved through the specific thermocouple. According to the manufacturing method, adhesive strength is enhanced, it is guaranteed that the obtained temperature data in the temperature measuring and machining experiments are reliable, and the service life of a tool is prolonged.
Description
technical field [0001] The invention belongs to the field of temperature measurement in a cutting area, and is suitable for measuring the cutting temperature in experiments such as drilling and milling of carbon fiber reinforced composite materials. Background technique [0002] In the process of material cutting, since the machinability of the material itself and the performance of the tool change greatly with temperature, the temperature of the cutting zone is an important factor affecting the quality of cutting and the form and degree of tool wear. Especially in the processing of carbon fiber reinforced composite materials, due to the characteristics of the material itself, such as heterogeneity, low thermal conductivity, and obvious anisotropy, thermal damage is easily induced during the processing of composite parts. When the processing temperature is higher than the glass transition temperature of the composite matrix, the thermal influence of cutting is intensified, a...
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IPC IPC(8): B23Q17/00
CPCB23Q17/0985
Inventor 贾振元钱宝伟王福吉付饶何春聆宿友亮
Owner DALIAN UNIV OF TECH