The vibration exciter, a magnetostrictive transducer 1, is fixed to the body 2 of the acoustic head using the shoulder 3. Micro ultrasonic machining micro usm, is one of the efficient material removal processes especially suitable for the micromachining of hard and brittle materials. This type of weld is performed on childrens toys, lawn furniture, auto parts and other plastic equipments which are used daily both for domestic and commercial purposes. Usm is grouped under the mechanical group ntm processes. High speed machining hsm seminar and ppt with pdf report. This study reports the experimental results on the tool wear, cutting force, and surface roughness during rotary ultrasonic machining of a titanium alloy with four. Ultrasonic enhancement of an electrochemical machining. Ultrasonic metal welding seminar report, ppt, pdf for. Ultrasonic machining, or strictly speaking the ultrasonic vibration machining, is a subtraction manufacturing process that removes material from the surface of a part through high frequency, low amplitude vibrations of a tool against the material surface in the presence of fine abrasive particles. This tool will induce impact loads on to the abrasive particles which in. This process is used for drilling both circular and noncircular holes in very hard materials like carbide, ceramics, etc.
Ultrasonic machining is of particular interest for the cutting of nonconductive, brittle workpiece materials such as engineering ceramics. Dynamic analysis of the ultrasonic machining process. The process of metal removal by electro chemical dissolution was known as long back as 1780 ad but it is only over the last couple of decades that this method has been used to advantage. Particularly suited for very hard andorbrittle materials such asgraphite, glass, carbide, and. Find powerpoint presentations and slides using the power of, find free presentations research about ultrasonic machining ppt. Machining operations and part geometry each machining operation produces a characteristic part geometry due to two factors. Ultrasonic testing of ferritic or martensitic steel forgings. The ultrasonic machining center is also a fully capable conventional machining center. Miyan ram 1709653 1 introduction ultrasonic machining usm is the removal of hard and brittle materials using an axially oscillating tool at ultrasonic frequencies 1820 khz during that oscillation, the abrasive slurry of b4c or sic is continuously fed into the machining zone between a soft tool brass or steel and the workpiece. Using plastic welding, two plastics can be welded together. Ultrasonic machining free download as powerpoint presentation. Mechanical machining ultrasonic machining usm and waterjet machining wjm are typical examples of single action, mechanical non traditional machining processes.
Ultrasonic machining is a mechanical material removal process that uses formed tools, vibration of high frequency and abrasive slurry mix. Ultrasonic machining is nontraditional machining process which is used to machine brittle and hard material. Introduction glasses are preferred as the structural materials for biochemical analysis because of its superior stability. Ultrasonic machining usm is a mechanical material removal process used to erode holes and cavities in hard or brittle workpieces by using shaped tools, highfrequency mechanical motion, and an abrasive slurry. Ultrasonic horn design for ultrasonic machining technologies. Ultrasonic machining in ultrasonic machining, a tool of desired shape vibrates at an ultrasonic frequency 19 25 khz with an amplitude of around 15 50.
Today we will learn about ultrasonic machining, principle, working, equipments, application, advantages and disadvantages with its diagram. Mechanicaltype advanced machining processes mamp are of various types, as shown in figure 11. Pdf process characteristics in ultrasonic machining researchgate. The machining characteristics that are being investigated are tool wear rate and the quality of the. Schematic of ultrasonic machine tool usm is primarily targeted for the machining of hard and brittle materials dielectric or. This is the driving principle of the ultrasonic motor. Machining of titanium, however, is considered as cumbersome with the conventional manufacturing practices, and there is a critical need of developing and establishing costeffective methods of.
Ultrasonic machining usm is a nontraditional mechanical machining process and can be used in. In order to join the thermoplastics, when they are heated an under a particular pressure, this type of welding is employed. Ultrasonic machining is a nontraditional machining process. Ultrasonic machining is a contemporary manufacturing method usually employed for processing materials with higher hardnessbrittleness such as quartz, semiconductor materials, ceramics etc.
It is also known as ultrasonic impact grinding is an operation that involves a vibrating tool fluctuating the ultrasonic frequencies in order to remove the material from the work piece. Ultrasonic testing of ferritic or martensitic steel forgings bs en 102283. Thickness of the welded parts is limited by the power of the ultrasonic generator. Ultrasonic machining is a mechanical type nontraditional machining process. Ultrasonic refers to waves of high frequency above the audible range of 20 khz.
An experimental study on ultrasonic machining of pure titanium using designed experiments in the present research work, the effect of several process parameters on the machining characteristics of pure titanium astm gradei has been reported. Titanium is known as the metal of the future because of its excellent combination of properties such as high strengthtoweight ratio, low thermal conductivity, and high corrosion resistance. Monitoring of ultrasonic vibration micromachining process nobuyuki moronuki, satoshi saneshima and yasunori saito tokyo metropolitan university, 11 minamiohsawa, hachioji, tokyo 1920397, japan 1. Ultrasonic machining is a nontraditional process, in which abrasives contained in a slurry are driven against the work by a tool oscillating at low amplitude 25100 microns and high frequency 1530 khz. Explore ultrasonic metal welding with free download of seminar report and ppt in pdf and doc format. Ultrasonic machining it is a mechanical material removal process, used to erode material in the form of fine holes and cavities in hard or brittle workpiece. Ultrasonic machining 1 machining industrial processes. This chapter presents usm and rotary ultrasonic machining rum, including definitions, machine elements, input variables and their effects, applications, and advantages and disadvantages. Rotary ultrasonic machining rum is a mechanical type nontraditional hybrid machining process which has been utilized potentially to machine a wide range of latest and difficulttomachine. Thus we can say that the general principle of operation of ultrasonic motors is to generate gross mechanical motion through the amplification and repetition of micro deformations of the active material. Processing capabilities of micro ultrasonic machining for.
Ultrasonic machining from the technology data exchange linked to trusted tde listed vendors. Hadi is with the manufacturing department, university of tabriz, tabriz 51664, iran corresponding author to provide phone. Ultrasonic machining usm is a nontraditional mechanical machining process and can be used in many applications. This machining process comes into existence in 1950 for finishing edm surface. A new nontraditional machining method using cavitation. Rotary ultrasonic machining rum is a mechanical type nontraditional hybrid machining process which has been utilized potentially to machine a wide range of latest and difficultto machine. Ultrasonic technology poised for advance into general. Wallace says the typical use of this machine would be conventional metalcutting most of the time, with the ultrasonic head loaded into the spindle for the parts and operations benefitting most from this capability. It is employed to machine hard and brittle materials both electrically conductive and. This paper presents a dynamic analysis of the ultrasonic machining process based on impact mechanics.
Also explore the seminar topics paper on ultrasonic metal welding with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year mechanical engineering me or production automobile students for the year 2019 2020. The machining operation is simple and requires less time. Seminar report on ultrasonic machining prepared by. Ultrasonic machining is one of the types of nontraditional machining methods which produces circular, noncircular holes of very small size is ultrasonic machining method when very frequency vibrations are applied on to the tool, the tool is vibrating at a very high frequency. In this process abrasives contained in the slurry are driven against the work by a tool oscillating at low amplitude 25100 microns and high frequency 1530 khz.
He is currently an assistant professor in the department of industrial and manufacturing systems engineering at. Equations representing the dynamic contact force and stresses caused by the impinging of abrasive grits on the work, are obtained by solving the threedimensional equations of motion. If the object is very close to the sensor, the signal comes back quickly if the object is far away from the sensor, the signal takes. Study of parameters of ultrasonic machining ethesis. Towards partial fulfillment of requirement for the award of degree of master of mechanical. The ampltude of the acoustic vibrations is about 0.
The frequency of acoustic vibrations is in the range 20 to 70 khz commonly 2040 khz. Ultrasonic machining is ultrasonic machining processes, as being developed and applied at ewi, consist of the. There are two power transformations involved in the running of ultrasonic motors. Ultrasonic machining national institute of technology. This section deals with two commonly used mamp, viz. Working of ultrasonic machining usm process parameters. Applied and computationalmechanics4 2010 7988 ultrasonic horn design for ultrasonic machining technologies m. Pei received his phd in mechanical engineering from the university of illinois at urbanachampaign. Ultrasonic machining ppt with pdf seminar report study mafia. Relative motions between the tool and the workpart generating part geometry is determined by the feed trajectory of the cutting tool 2.
Unlike other nontraditional processes such as laser beam, and electrical discharge machining, etc. The tool travels vertically or orthogonal to the surface of the part at amplitudes of 0. Generally the tool is pressed downward with a feed force, f. The machined surface produced by ultrasonic machining is found to be free from any surface defects heat affected zone, cracks, recast layer, etc. The following report gives an overview of these parameters and how this affects. A transmitter that sends out a signal that humans cannot hear a receiver that receives the signal after it has bounced off nearby objects the sensor sends out its signal and determines how long the signal takes to come back. Ultrasonic machining basic terms and working learn and grow. Modeling the material removal rate in ultrasonic machining. It is also clear that whilst there is general agreement concerning some parameter effects, there is contradictory. View and download powerpoint presentations on ultrasonic machining ppt. The fundamental principles of stationary ultrasonic machining, the material removal mechanisms involved, proposed models for. It uses formed tools, vibrations of high frequency and a suitable abrasive slurry mix.
Machining submitted by sri sumit kumar samal in the fulfillment of the requirements. Basics of ecm process electrochemical machining ecm for conductive. Magnified view of the tool tip and the workpiece is shown in. This is to certify that the report entitled study of parameters of ultrasonic. Introduction the technology of high power ultrasonics, already extensively applied at ewi in the fields of welding, solderingbrazing and additive manufacturing, is now being extended to the field of ultrasonic machining. The machining medium is solid grains suspended in an abrasive slurry in the former,while a fluid is employed in the wjm process. In the present paper, an experimental study of the ultrasonicbased depassivation process and its benefits related to an ecm proces are presented and discussed. Ultrasonic machining introduction ultrasonic machining is a nontraditionalmechanical means of uniform stock materialremoval processit is applicable to both conductive andnonconductive materials. Ultrasonic machining is a mechanical material removal process that uses formed tools. Patel college of engineering, kherva382711 1 certificate ultrasonic machining.