A dual-nozzle liquid nitrogen cooling system suitable for inconel718 cutting

Abstract

The invention belongs to the related field of metal cutting machining, and discloses a double-sprayer type liquid nitrogen cooling system suitable for Inconel 718 cutting machining. The double-sprayer type liquid nitrogen cooling system suitable for Inconel718 cutting machining comprises a liquid nitrogen supply source, a flow unit, a liquid nitrogen conveying pipe and a liquid nitrogen sprayer unit, wherein the liquid nitrogen supply source is used for controllably outputting low-temperature liquid nitrogen; the flow unit is used for continuing to convey the liquid nitrogen to the liquid nitrogen conveying pipe and monitoring the flow speed of the liquid nitrogen flowing through the flow unit; the liquid nitrogen conveying pipe continues to convey the liquid nitrogen to the liquid nitrogen sprayer unit on the premise of keeping the liquid nitrogen not gasified. The sprayer unit is of a double-sprayer structure, so that the liquid nitrogen can be accurately controlled to be jetted to the front surface and rear surface of a cutter, and good application of the low-temperature liquid nitrogen is achieved in Inconel 718 alloy cutting machining. By means of the double-sprayer type liquid nitrogen cooling system suitable for Inconel 718 cutting machining, more accurate orientated control can be achieved on the aspects of the liquid nitrogen use amount, the liquid nitrogen jetting position, liquid nitrogen storing sealing performance and the like. The double-sprayer type liquid nitrogen cooling system further has the advantages of being clean, environmentally friendly, good in cutting quality and convenient to control.

Description

technical field [0001] The invention belongs to the related field of metal cutting, and more specifically relates to a double-nozzle liquid nitrogen cooling system suitable for Inconel718 cutting. Background technique [0002] Inconel 718 (nickel-based superalloy 718) is a precipitation-hardening nickel-chromium-iron alloy containing niobium and molybdenum. Due to its high strength, good toughness and corrosion resistance in high and low temperature environments, it has been awarded in many fields. widely used. However, Inconel718 alloy is a difficult-to-machine material. When the traditional cutting method is used to pour ordinary cutting fluid for processing, it will have adverse effects on the health of operators, environmental pollution, post-processing, and processing costs. [0003] In this case, under the promotion of the green manufacturing environment and modern processing mode, the cutting process of difficult-to-machine materials began to seek alternatives to tra...

AI Technical Summary

Problems solved by technology

However, how to accurately and efficiently spray liquid nitrogen to the deformation zone, and how to effectively solve the problem of low boiling point and difficulty in storage during the use of liquid nitrogen, are becoming technical difficulties that need to be solved urgently in this field.

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