Heat pipe grinding wheel for dry cutting for difficult-to-machined materials and method for manufacturing heat pipe grinding wheel

Abstract

The invention discloses a heat pipe grinding wheel for dry cutting for difficult-to-machined materials and a method for manufacturing the heat pipe grinding wheel. The heat pipe grinding wheel comprises a matrix and abrasive particles arranged on the matrix, and is characterized in that the matrix comprises a base and an end cover, the abrasive particles are arranged on the end cover, solid lubricants are coated on the abrasive particles, a heat pipe cavity is further formed between the end cover and the base, an air exhaust hole is further arranged on the base, the inside of the air exhaust hole is communicated with the heat pipe cavity, a plug hole is arranged on the outside of the air exhaust hole, an inner plug and an outer plug which are coaxially arranged are disposed in the plug hole, working media are arranged in the heat pipe cavity, and condensation grooves are arranged on two outer surfaces, which are positioned in a condensation section of the heat pipe cavity, of the end cover at intervals. The heat pipe grinding wheel and the method have the advantages that the structure is simple, the cost is low, heat of a grinding arc area can be effectively dissipated when the difficult-to-machined materials are machined, and the bottleneck problem that coolant is difficult to be filled into an existing grinding arc area for effective heat exchange can be solved.

Description

Technical field: [0001] The invention relates to a structural improvement of a heat pipe grinding wheel for dry grinding of difficult-to-machine materials, and belongs to the field of high-efficiency grinding and grinding tools for difficult-to-machine materials. Background technique: [0002] When grinding difficult-to-machine materials, most of the heat generated is accumulated in the grinding arc area. Due to the poor thermal conductivity of the difficult-to-machine materials themselves, the temperature in the grinding arc area rises sharply. If the grinding arc area cannot be controlled in time and effectively If the temperature is too high, it may cause thermal damage such as oxidation, burns, residual stress and microcracks on the surface of the part. The traditional cooling method is to pour a large amount of coolant into the grinding arc area. The use of a large amount of coolant not only increases the processing cost, but also pollutes the environment and even endan...

AI Technical Summary

Problems solved by technology

[0002] When grinding difficult-to-machine materials, most of the heat generated is accumulated in the grinding arc area. Due to the poor thermal conductivity of the difficult-to-machine materials themselves, the temperature in the grinding arc area rises sharply. If the grinding arc area cannot be controlled in time and effectively temperature, it may cause thermal damage such as oxidation, burns, residual stress and microcracks on the surface of parts

The traditional cooling method is to pour a large amount of coolant into the grinding arc area. The use of a large amount of coolant not only increases the processing cost, but also pollutes the environment and even endangers the health of the operator. Therefore, how to channel the heat in the grinding arc area greenly and effectively It has become an urgent problem to be solved in the grinding of difficult-to-machine materials

[0003] At present, some people have proposed to apply the heat pipe technology to the grinding wheel, and use the high thermal conductivity of the heat pipe to dissipate the heat in the arc area, but this idea has not been applied to the actual grinding, and the heat pipe grinding wheel is still in the concept stage

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