Abstract
It is generally observed that special channels exit in many key components of machine, such as non-linear tube, applied in military or civil industries. Its surface finish is a crucial factor in the whole performance of machine. In military and civil fields, many key parts have special passages, such as non-linear tube. The surface quality of non-linear tube usually decides the general using property of the whole equipment. The abrasive flow machining technology can effectively improve the surface quality of non-linear tube parts and promote the using property of the whole equipment. The technology of solid-liquid two-phase abrasive flow machining can obtain higher enhancement in surface quality. To investigate the processing technology of abrasive flow machining for non-linear tube–injection nozzle, we performed a full factorial experiment modifying critical process parameters such as particle density, particle size, and abrasive viscosity during the machining. The study investigated the relationship among abrasive particle physical property, surface quality of non-linear tube, and the optimal parameters. At the same time, we deduced the regression equation which takes the abrasive particle physical property as the key factor. Through full factorial experimental study, it is found that under the experimental conditions of this article, abrasive flow polishing process serves best when the abrasive concentration is 10% and the particle size is 6 μm. Moreover, the verification experiment of the non-linear nozzle is carried out. The average value of the experimental data is located in the prediction interval, which confirmed the accuracy of the whole factor test. The experimental results can provide technical support for further research of abrasive flow machining theory. The research results in this article have profound theoretical significance and practical value for improving the machining efficiency of non-linear parts and obtaining high-quality-surface passages. The study data possess important theory significance and practical value for improving the processing efficiency for non-linear tube and obtaining a high-quality surface channel. The experimental results can provide technology support for further study on abrasive flow machining theory.
Highlights
It is necessary that the analysis does not include the third-order interaction items
Using the self-developed abrasive flow medium, nozzle is taken as the research object to carry out the whole factorial experiment
In the whole factorial experiment, the abrasive density, abrasive particle size, and abrasive viscosity are taken as main factors to explore in depth the effect of abrasive medium physical property on non-linear tube surface with abrasive flow machining (AFM) and optimum parameter combination was obtained
Summary
It is generally observed that high-performance channels exit in many key component of the military and civil industries, ranging from some critical component in oil feeding system to intake and exhaust system of infantry fighting vehicle, from aircraft engine air-cool channel to special channel, and cross inner hole in satellite. Abrasive flow machining (AFM) technology comes true into being. AFM technology plays an effective role in ultra-precision machining for complex component inner channel surface.[2,3]. Abrasive flow polishing is a latest developed processing method in recent decades, using liquid (oil) as the carrier and hard particles (silicon carbide as general) as cutting tools which flow through the surface of a workpiece under a certain value of speed or pressure, so as to achieve precision machining.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
