Research of Abrasive Suspension Magnetic Fluid Jet Technology

Abstract

Through analyzing the existing abrasive jet technology, and discussing the MHD technology principle and its advantages, this paper proposes a new method of abrasive suspension magnetic fluid jet technology. The experimental device validates that conductive fluid can produce a boost effect Conductive fluid can produce a boost effect. This paper points out the key technologies involved in the new technology of the magnetic fluid jet of the suspended abrasive, and expounds the research status of the key technology and the main technical problems, and provides a new research direction for the development of abrasive jet.

Research Progress in Abrasive Water Jet Processing Technology

“…Among them, microabrasive water jet technology is the latest development of the microfabrication technology method, which is applied in the field of precision machining and micromanufacturing; it has obvious advantages in terms of processing quality, such as kerf quality, kerf width, etc., but the shortcomings are the existence of high equipment costs, processing and maintenance process with equipment processing difficulties, maintenance inconvenience, and poor stability [ 130 , 131 ]. Zhang et al [ 132 ] proposed a suspended abrasive magnetic fluid jet technology based on abrasive jet technology, using electromagnetic force to effectively control the abrasive in the magnetic fluid, so that the jet has good clustering and stability, which is of great importance for the update of abrasive jet technology. Researchers have developed abrasive water suspension jet technology based on abrasive water jet technology [ 14 , 127 ], where the stability of the abrasive suspension is achieved by adding a quantitative amount of additives, and the abrasive suspension is pressurized by a high-pressure pump to obtain a high-velocity jet with a strong clustering to achieve the processing of the target object.…”

Design of Alternating Current Abrasive Magnetic Fluid Jet Generator Based on Permanent Magnet

“…The permanent magnets are placed on the upper and lower sides of the runner where electric fields are applied to the left and right sides.In the interaction environment, the abrasive magnetic fluid in the runner is subjected to the action of electromagnetic force and moves rapidly along its direction, thus forming a DC abrasive magnetic fluid jet [1]. Established a test runner with length, width and height set as: 800mm, x100mm, x20mm.During the test, the NdFeB permanent magnets as the magnetic field were respectively arranged in the runner on both sides, energized graphite electrode plates were arranged on the left and right sides, saturated NaCl solution as the magnetic fluid, the test produced liquid level difference of 20cm.The field test device is shown in Fig.…”