Lubricating and cooling method for cutting process and device thereof

Abstract

The invention discloses a lubricating and cooling method for cutting process and a device thereof. The method comprises the following steps: adding nano-particles with particle size of 20-40 nm at a volume ratio of 1-5% into vegetable oil or deionized water; adding dispersant at a volume ratio of 0.05-0.15% while conducting ultrasonic vibration at a frequency of 10-40 kHz so as to obtain uniform oil-based or water-based nano-particle suspension with high dispersibility; and under the effect of compressed air with pressure of 0.3-1 MPa, sufficiently atomizing the nano-particle suspension into atomized particles with micron-level diameter, wherein the high-pressure atomized particles break through a cutter through a nozzle and an air barrier layer on the workpiece surface and then are ejected to a cutting area so as to lubricate and cool the cutting area. Through the lubricating and cooling method for cutting process and the device thereof which are disclosed by the invention, the cooling medium with high lubricating performance and heat conducting performance can be effectively injected into the cutting area so as to improve the lubricating state of the cutting area and reduce friction and heat emission; and the generated heat is taking away in real time.

Description

technical field [0001] The invention relates to a method for lubricating and cooling cutting operations, and also to a device for implementing the method. Background technique [0002] During the cutting process, especially for high-hard and difficult-to-machine materials, a large amount of heat will be generated in the processing area. In order to avoid thermal damage to the workpiece, the processing area must be lubricated and cooled to reduce heat generation, and the generated heat will be taken away in time. Walk. At present, the methods for lubricating and cooling the processing area mainly include: pouring cutting fluid method, water vapor cooling method, liquid nitrogen cooling method, low-temperature cold air cooling method and minimal quantity lubrication (MQL) technology. Among them, in the process of pouring cutting fluid, the amount of cutting fluid that can enter the cutting area and actually play a role in lubrication and cooling is very small, and the small p...

AI Technical Summary

Problems solved by technology

Among them, in the process of pouring cutting fluid, the amount of cutting fluid that can enter the cutting area and actually play a role in lubrication and cooling is very small, and the small part of cutting fluid that enters the cutting area will quickly vaporize into a "steam film" after being heated. The emergence of new cutting fluids will hinder the entry of new cutting fluids into high-temperature cutting areas. At the same time, the extensive use of cutting fluids will pollute the environment; the water vapor cooling method will accelerate the rusting of metal material workpieces; the cost of liquid nitrogen cooling is very high; low-temperature cold air cooling and MQL technology They adopt gas phase and gas-liquid two-phase cooling respectively, and the cooling effect is not ideal

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