A method to enhance heat transfer in dry cutting machining considering chip heat transfer

Abstract

The invention discloses a method for enhancing heat transfer in dry cutting processing considering chip heat transfer, comprising: constructing a cutting heat enhancement transfer control objective function for dry cutting processing; The constraint conditions of the cutting heat enhancement transfer control objective function corresponding to the target workpiece of thermal temperature and part processing quality; determine the value range of each decision variable corresponding to the target workpiece based on the cutting heat enhancement transfer control objective function constraint conditions corresponding to the target workpiece; Within the value range of each decision variable, the intelligent optimization algorithm is used to optimize the cutting heat enhancement transfer control objective function to determine the best value of each decision variable of the target workpiece. The invention provides a new control method for cutting heat transfer in dry cutting, which realizes the enhanced transfer of cutting heat by improving the chip heat exchange capacity, which is beneficial to reduce the negative impact of cutting heat, thereby improving the processing accuracy.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a method for enhancing heat transfer in dry cutting processing in consideration of chip heat transfer. Background technique [0002] Dry cutting can realize the manufacture of mechanical parts without using cutting fluid. It has the outstanding advantages of low environmental pollution in the workshop and small occupational health hazards for workers. It is an important development direction for the green transformation and upgrading of the machining industry. Different from the traditional wet cutting process, the dry cutting process faces severe thermal environmental challenges, especially cutting heat. On the one hand, due to the high cutting speed of dry cutting, a large amount of cutting heat is generated in a short time; on the other hand, since no cutting fluid is used, the ability of the cutting heat to diffuse outside the cutting area is limited, and it i...

AI Technical Summary

Problems solved by technology

However, the thermally symmetrical structural design of the machine tool and the temperature control effect of the compressed air assisted heat dissipation are affected by the experience level of the workers, and the thermal error compensation is more focused on the passive compensation after the event, and it is difficult to fully and efficiently control the heat flow law and its influence

Images