Design and Simulation Analysis of Low Temperature Air Deep Hole Processing System

Abstract:

In this paper, a unique design of low temperature of BTA deep-hole machining system based on the green manufacturing was proposed,in which the low temperature air cutting technology was applied to the BTA deep hole processing. Consequently, the system have the characteristics of low temperature air cutting and deep hole processing. The system presented here uses the large flow of cold air (-30 °C ~-20 °C) and oil mixing atomization gas (MQL) for chip removal, cooling and lubricating the tool, thus the use of deep hole cutting oil was decreased, the cooling and lubricating effect of the tool was strengthened and the tool life was also strengthened. In this article, the ANSYS CFX was used for simulating the internal flow field of chip removal channel. By means of simulations, it is concluded that the pressure difference between the low temperature cold wind is significantly greater than the pressure difference between the liquid, and the gas flow rate is greater than the liquid flow rate. The comprehensive analysis indicate that low temperature air system are likely to bring about a better ability of chip removal, which provides theoretical basis for the low temperature air cutting technology was applied to deep-hole machining system.

• Periodical: Key Engineering Materials (Volume 620)
• Pages: 154-159
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.620.154
• Online since: August 2014
• Authors: Hai Peng*, Qiang Wang
• Keywords: Deep Hole Processing, Flow Field Simulation, Low Temperature Air Cutting

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