(PDF) Investigation on float glass hole surface
specification of the float glass has been mentioned in T able 1. ... Also reported that the rotary ultrasonic machining and other vibration-assisted machining processes are used explicitly to ...
Rotary ultrasonic machining of carbon fiber–reinforced …
Rotary ultrasonic machining (RUM), a hybrid nontraditional cutting process, combines the material removal from the traditional grinding and the ultrasonic machining [].RUM is an efficient and effective method for hole making of carbon fiber–reinforced plastic (CFRP) composites or surface machining of CFRP composites [].As shown in Fig. 1, in …
A Mechanistic Approach to the Prediction of Material …
An approach to modeling the material removal rate (MRR) during rotary ultrasonic machining (RUM) of ceramics is proposed and applied to predicting the MRR for the case of magnesia stabilized zirconia. The model, a first attempt at predicting the MRR in RUM, is based on the assumption that brittle fracture is the primary mechanism …
Ultrasonic Machining | SpringerLink
Ultrasonic vibrations are used in various engineering applications such as cleaning, welding, and machining. Ultrasonic machining (USM) is the removal of materials by abrasive bombardment and crushing in which a soft flat-ended tool is made to vibrate at a frequency of about 20,000 Hz and amplitude of 0.001–0.003 in. ... Rotary …
Advances in rotary ultrasonic machining system for hard …
In 1964, the British scholar Legge proposed an ultrasonic machining method without abrasive slurry, which combined traditional ultrasonic machining with grinding machining; this method proved efficient and improved the material removal rate over traditional ultrasonic machining, 3 as shown in Figure 1.When the cutting tool for …
ULTRASONIC MACHINING—A COMPREHENSIVE REVIEW
Ultrasonic machining (USM) is a mechanical material removal process used to erode holes and cavities in hard or brittle workpieces by using shaped tools, high-frequency mechanical motion, and an abrasive slurry. ... research work reported on rotary mode USM, hybrid USM, process capabilities of USM have been extensively reviewed in …
Review on ultrasonic machining
Rotary ultrasonic machining (RUM). Here the tool is excited and simultaneously rotated so reducing out-of-roundness to about 1/3 the values obtained in …
Effects of High Frequency Vibration on the Surface Quality in Rotary …
Specifications of the RUM/CG process parameters ... Rotary ultrasonic machining (RUM) is a mechanical type non-traditional hybrid machining process which has been utilized potentially to machine a ...
(PDF) Rotary Ultrasonic Machining: A Review
Rotary ultrasonic machining (RUM) is a mechanical type non-traditional hybrid machining process which has been utilized potentially to machine a wide range of latest and...
Review of ultrasonic vibration-assisted machining in …
At present, based on the different machining processes, UVAM can be categorised into vibration-assisted cutting and rotary ultrasonic machining. ... Frequency is a key factor that affects the specification selection of vibration-assisted machining (VAM), which will be applied as a vibration generator in the CM [69, ...
Rotary Ultrasonic Machining of Advanced Materials: A …
Rotary ultrasonic machining is a non-conventional hybrid machining process that combines the material removal mechanisms of diamond grinding and ultrasonic …
Improvement effects of vibration on cutting force in rotary ultrasonic
Rotary ultrasonic machining (RUM) exhibits a high potential for a significant reduction in the cutting force, which directly associates with tool wear, machining accuracy, machining temperature, and surface integrity. ... Specifications of the diamond tools and the RUM scratching process parameters. Tool number Diameter (mm) Grain size (μm ...
Effect of rotary ultrasonic machining on surface
The maximum spindle speed of the machining center was 8,000 rpm. SY-2000 ultrasonic equipment was used to provide ultrasonic power with vibration frequency of 30 kHz. It provided electrical signal from ultrasonic generator, then converted into high-frequency mechanical vibration by transducer and provided vibration energy to cutting …
Rotary ultrasonic machining of CFRP: A comparison with grinding
Then rotary ultrasonic machining and grinding in drilling of CFRP are compared in five aspects, including cutting force, torque, surface roughness, hole diameter, and material removal rate and ...
Applied Sciences | Free Full-Text | Rotary Ultrasonic Machining …
Pocket milling has been regarded as one of the most widely used operations in machining. The surface quality of the machined pockets is an essential aspect of any engineering and medical applications. In the current study, rotary ultrasonic machining (RUM) was applied for milling micro-pockets on alumina (Al2O3) ceramic. The objective …
Advances in Rotary Ultrasonic-Assisted Machining
Rotary ultrasonic-assisted machining (RUAM) processes have been recognized as leading, non-traditional, high-precision machining processes that have …
In-situ characterization method for tool ultrasonic vibration in rotary
1. Introduction. Rotary ultrasonic machining (RUM) has been demonstrated to be a superior non-traditional machining method for difficult-to-machine materials such as glasses, ceramics, and superalloys [1], [2], which superimposes an ultrasonic frequency vibration on a rotary cutting tool (such as drilling tools, milling tools).The high-frequency …
Rotary ultrasonic machining of woven CFRP composite in a …
Rotary ultrasonic machining was performed on a woven CFRP composite in a cryogenic environment to investigate thrust force, exit burr area, and surface roughness. A regression model was developed for each output response, and the optimum levels of input parameters were predicted using desirability analysis. The following …
Theoretical and experimental investigations on rotary ultrasonic
Therefore, rotary ultrasonic micro-machining (RUμM) is investigated to conduct the surface micro-machining of brittle materials. Due to the small diameter cutting tool (<500 μm) and high accuracy requirements, the impact of input parameters in the rotary ultrasonic surface micro-machining (RUSμM) process on tool deformation and …
Edge trimming of carbon fiber-reinforced plastic composites …
The superior properties make carbon fiber-reinforced plastic (CFRP) composites attractive in many applications. After CFRPs' molding processes, additional machining processes are needed to produce final functional shapes with dimensional precision. Edge trimming is the primary process to cut the edge of CFRP composites. To …
Metals | Free Full-Text | Ultrasonic Assisted Machining …
A detailed analysis of the requisite system components and their technical specifications is presented, followed by identifying common issues within such systems. Solutions for the identified limitations are proposed, acting as design guidelines for future technological advancements. ... Komaraiah, M.; Reddy, P.N. Rotary ultrasonic …
Rotary ultrasonic machining of ceramic matrix composites…
However, significant challenges (such as the lack of specifications, databases, and in-service repair methodology, and high machining cost) still remain for their widespread applications. In this paper, rotary ultrasonic machining (RUM) is introduced into drilling holes on CMC panels for the first time. ... In the present paper, …
Performances of a Contactless Energy Transfer System for Rotary
In rotary ultrasonic machining (RUM), the contactless energy transfer (CET) system based on the rotary transformer can replace the well-established slip ring technology to supply power for the revolving ultrasonic vibrator. However, the transfer efficiency and power output capability of the CET system is usually a pair of contradictions. The high …
Review of ultrasonic vibration-assisted machining in …
This overview covers the evolution of typical hardware systems used to achieve vibratory motions from the one-dimensional UVAM to three-dimensional UVAM, …
Ultrasonic machining (USM) | OpenLearn
In rotary ultrasonic machining (RUSM), the tool is rotated as well as being vibrated. Most commonly used for drilling using diamond-plated drills, giving greater accuracy and cutting speed. Manufacture: An …
[PDF] Rotary ultrasonic machining of titanium alloy (Ti-6Al …
Therefore, to machine titanium alloys cost effectively still remains a challenge. In this paper, Rotary Ultrasonic Machining (RUM) of titanium alloy (Ti-6Al-4V) has been investigated. Four tools with different specifications (diamond grit size, diamond concentration and metal bond type) are used to drill holes in titanium alloy workpieces.
Ultrasonic Machining: Diagram, Working Principle, …
In ultrasonic machining, a tool vibrating longitudinally at 20 kHz to 30 kHz with an amplitude between 0.01 mm to 0.06 mm is pressed onto the work surface with a light force. As the tool vibrates with a specific frequency, an abrasive slurry, usually a mixture of abrasive grains and water of fixed ratio (20% – 30%), flows under pressure ...
Modeling and optimization of the magnetically coupled
S INCE the 21st century, fine ceramics and advanced composite materials have been widely used in various fields owing to their excellent properties. Still, it is quite challenging to process these materials efficiently with high quality. Rotary ultrasonic machining (RUM), a combination of ultrasonic vibration and traditional machining …
Rotary Ultrasonic Machining: Application for Cutting Edge
This book covers the process and conditions of Rotary ultrasonic machining (RUM) of hard materials and summarizes the recommendation of proper machining parameters. …
A systematic survey of RUM process parameter optimization …
In the present-day scenario, rotary ultrasonic machining (RUM) can be employed for machining of complex and tough structure material such as ceramic, titanium, glass, ...