FIELD: materials processing.
SUBSTANCE: invention relates to the field of mechanical processing of materials and can be used to study the temperature state of the cutting process when drilling by the method of a naturally forming thermocouple. The method includes fixing the workpiece by means of a split metal sleeve, a split ebonite sleeve and an ebonite spacer, which are located in a metal glass, in a three-jaw chuck, which is fixedly installed on the table of a drilling machine, and drilling said workpiece by means of a drill electrically isolated from the machine, installed in a three-jaw chuck, located on the spindle of the drilling machine. In this case, during drilling, the thermo-EMF is measured using a millivoltmeter electrically connected to the drill and to the said workpiece by means of, inter alia, electric wires placed in a container with ice.
EFFECT: use of the invention improves the accuracy of thermo-EMF measuring.
1 cl, 3 dwg
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|
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RU2734315C1 |
