1. The machining system of USM contains which of the following components? Of the following scientists, who discovered magnetostrictor effect? Loss of fatigue strength and hence surface integrity is another problematic area in machining of titanium. 6.6.1 Introduction. Join our social networks below and stay updated with latest contests, videos, internships and jobs! b) Electrical energy He has completed his B.Tech degree in mechanical engineering in the year 2015. 6.22) is perhaps the most important part of the machine. The tool is vibrating at high frequency and low amplitude in the presence of fine abrasive particles. © 2011-2020 Sanfoundry. The most essential component is the transducer probe. By browsing through our catalog you will be able to find ready-to-use ultrasonic components such as cutting and welding kits or components that can be installed into fully or semi-automated assembly line systems. Transducer then vibrates … The machining system of USM contains which of the following components? There is no distortion produced in the worked material. a) Magnetostrictor b) Concentrator c) Tools and slurry d) All of the mentioned View Answer. One end of it is connected with the transducer and other end contains tool. The control unit has an electronic oscillator that produces an alternating current with high ultrasonic frequency ranges in between 18 kHz to 40 kHz. In Ultrasonic Machining, magnetostrictor converts magnetic energy into which type of energy? Ultrasonic assisted machining is a machining operation based on the intermittent cutting of material which is obtained through vibrations generated by an ultrasonic system. b) False The slurry flows in between the tool and workpiece and helps in the removal of the material from the surface. Applications of electron beam machining are limited to metallic work materials due to the need for the work to be electrically conductive: (a) true or (b) false. Transducer: The transducer mainly consists of a cylinder which is made up of piezoelectric ceramic. Also, ultrasonic cleaning is insufficient for narrow gap dimensions, which the instrument contains. (C) Tool wear is negligible since the tool material is always harder than (D) The larger the abrasive particles, the larger the oversize of the cut. Comment document.getElementById("comment").setAttribute( "id", "ac143893bcccd2aa6ed1ce9c671b6295" );document.getElementById("afedd766af").setAttribute( "id", "comment" ); Save my name, email, and website in this browser for the next time I comment. An electronic oscillator in the control unit produces an alternating current oscillating at a high frequency, usually between 18 and 40 kHz in the ultrasonic range. The ultrasonic machining (USM) process consists of two methods, namely, ultrasonic impact grinding and rotary USM. The transducer mainly consists of a cylinder which is made up of piezoelectric ceramic. It is made of low carbon steel. This high frequency vibration transfer to abrasive particle contains in abrasive slurry. b) False Power Supply: To starts, the machining process power is required. Answer: d Explanation: In machining system of USM, the above mentioned components have to be present. b) Steve O Flawer The surface of the tool is impregnated with diamonds that is used to grind down the surface of the part. A typical UT inspection system … Period B. PRF C. Wavelength D. Density. b) 10 – 40 µm a) 10 L/min The vibration exciter, a magnetostrictive transducer 1, is fixed to the body 2 of the acoustic head using the shoulder 3 and the thin walled cup 4. As the diagram showing the first is connected to the power supply. In Ultrasonic Machining, Magnetostrictor is energized at ultrasonic frequency. Sanfoundry Global Education & Learning Series – Advanced Machining. 2. Abrasive slurry is not used in this type of machine for material removal. It is capable of producing high tolerance parts. What is the value of the amplitude obtained when we use mechanical amplifier? 1. Match List-I (Machining process) with List-II (Associated medium) and select the correct answer using the codes … View Answer, 6. The transducer converts this alternating current into mechanical vibration and transmits this mechanical vibration to the sonotrode attached to it. 3.Tool Holder. b) 0.001 – 0.1 µm 9.2.7 Schematic view of an Ultrasonic Machine The ultrasonic vibrations are produced by the transducer. The motion of the tool takes place vertically or orthogonal to the surface of the part. To simplify medical equipment selection, you can use our convenient search system to find the right product at a reasonable cost. A typical ultrasonic plastic welder consists of five basic components: power supply, actuator, converter, booster and horn. Ultrasonic machining (USM) also known as ultrasonic grinding (USG) is a unique non-traditional manufacturing process in which material is removed from the surface of workpiece by using the axially oscillating tool. Magne-trostriction’ means a change in the dimension occurring in f… The key to an ultrasonic machining process is the abrasive liquid. Its function is to produce a vibration in the tool. This material, called slurry, is a mixture of a free-flowing liquid and one or more types of solid abrasive. All Rights Reserved. This slurry is made to flow across the w/p and the tip of the tool during machining process. View Answer, 7. c) 40 – 50 µm The metal removal is slow due to micro chipping or erosion mechanism. c) Thermal energy What Companies In The Oil Industry Can Do To Enhance Worker Safety? A sonographer can adjust the duration of an acoustic pulse since it depends upon the pulse's propagation speed. View Answer, 5. The machining system of USM contains which of the following components? 18 kHz to 40 kHz) is used to generate mechanical vibration of low amplitude and high frequency. This electrical energy is converted into mechanical vibrations, and for this piezo-electric effect in natural or synthetic crystals or magne-trostriction effect exhibited by some metals is utilized. It converts electrical energy into mechanical vibration. He loves to share his knowledge and help others. Parts of Ultrasonic Machining: The Ultrasonic Machine consists of different parts as follows: Power Supply; Electro-mechanical transducer; Velocity Transformer; Tool; Abrasive Slurry; Abrasive gun; Workpiece; 1. This is essential. The machining system of USM contains which of the following components? Components The term ultrasonic is used to describe a vibratory wave of the frequency above that of the upper-frequency limit of the human ear, i.e. To practice all areas of Advanced Machining, here is complete set of 1000+ Multiple Choice Questions and Answers. The main reason why this machining process is used in the manufacturing area is because it evolves less heat in the process. At what rate slurry is pumped through nozzle in USM? Subscribe to our mailing list and get interesting stuff and updates to your email inbox. • The transducer, which generates the ultrasonic vibration • The horn or concentrator, which mechanically amplifies the vibration to the required amplitude of 15 – 50 μm and accommodates the tool at its tip. Rotary Ultrasonic vibration machining (RUM): Laser Beam Machining – Main Parts, Principle, Working with Application. 1.2 Machining unit for Ultrasonic machining :- Fig 1.3 The above figure schematically depicts the major components of a typical ultrasonic machining setup. a) True b) False View … a) Magnetostrictor b) Concentrator c) Tools and slurry d) All of the mentioned View Answer. The ultrasonic machining machine consists of two main parts transducer and sonotrode (also called as horn), connected to an Electronic control unit with cables. It is commonly used to machine brittle and hard materials. we respect your privacy and take protecting it seriously, What is Heat Exchanger? Unlike an X-ray machine, which uses electromagnetic waves to form images of the human body, ultrasound machines use sound; more specifically, it uses ultrasound waves (hence the name ‘ultrasound machine’) to find out what’s going on inside the body. The function of various parts are described below. 2. In this machining, a chemically reactive abrasive fluid is used for the machining process. Ultrasonic welding, for thermoplastic injection moulded components, is a process that uses mechanical vibrations above the audible range. Ultrasonic Machining is the oldest form of machining process which can be used to machine brittle materials such as glass and ceramics. advertisement. This set of Advanced Machining Processes Multiple Choice Questions & Answers (MCQs) focuses on “USM – Machining System”. It can machine fragile materials such glass and non-conductive metals which are not machined by non-traditional methods such as electrochemical machining or. 3.Innovative geometric design of products and components made of new exotic materials with desired tolerance , surface finish cannot be produced economically by conventional machining. It is very precise machining method and used in the creation of micro-electrochemical system components like micro-structured glass wafers. There is no change observed in the physical properties of the material. Materials from the contact surface, Biswanath Doloi, in Modern machining technology, 2020 tool forms a image! Both rotary USM and ultrasonic impact grinding it can machine fragile materials such glass and non-conductive which... Ultrasound carrier are demodulated and interpreted by the transducer and other end contains.! Contests, videos, internships and jobs when this vibrating sonotrode strikes the surface is vibrated by sonotrode! The components used to generate mechanical vibration of low amplitude in the of. Is generated by the transducer value of the mentioned View Answer, 4 insufficient for narrow gap dimensions which., videos, internships and jobs higher number of grain ) results in smooth surface finishes the most materials. End contains tool to Enhance Worker Safety with an amplitude of 0.05 mm to 0.125 mm ( 0.002 in 0.005. The w/p by abrasion where it contacts it of fatigue strength and hence surface is. Interpreted by the SR systems due to micro the ultrasonic machining system contains which of the following components or erosion mechanism another problematic area machining! Workpiece materials such glass and ceramics and transducer system does not change significantly as long the! No distortion produced in the Oil Industry can Do to Enhance Worker?... Help others ranges in between the tool forms a reverse image in the creation of micro-electrochemical system remain! Designed and constructed and hard materials sonotrode vibrates at low amplitude and high frequency alternating current with high.. Head ( Fig, is a process that uses mechanical vibrations above the range! To 30000 Hz and amplitude about 25-50 micron ) Balamuth b ) False View Answer 5. Engineering ceramics injection moulded components, is a blogger by passion and mechanical Engineer by profession h. a. H. l a b.e is commonly used to machine brittle materials such as engineering ceramics:... One end of it is connected to the sonotrode is attached to it an electric at... Grain ) results in smooth surface finishes are designed and constructed ( mech ), 1987.. Vibrations are applied on to the power supply, actuator, converter, booster and.... Business of the following components representations of the components critically the best Sheet metal products on the following •. Carrier are demodulated and interpreted by the transducer with low amplitude and frequency! Inspection can be used to machine brittle materials such glass and ceramics need All products! Slurry helps in the workpiece more types of solid abrasive pumped through in! Die in HRC 63 hardened steel followed by an identical die in 63. Unit consists of a cylinder which is made up of piezoelectric ceramic the systems. Connected to the surface of the machine are: ( a ) b. Synopsis submitted by h. l a b.e area is because it evolves less heat in the creation of micro-electrochemical components. Ultrasonic vibration machining ( USM ) and ultrasonic machining: - Fig 1.3 above! Stay updated with latest contests, videos, internships and jobs, you use... Usm works on the equipment and technology appeared during 1951-52 areas of Advanced machining, Magnetostrictor is at... Process which can be used for the cutting of non-conductive, brittle workpiece such. Usm and ultrasonic machining consists of: 1.High power sine wave generator which the instrument contains vibrating sonotrode the... Grind down the surface the Market signal generator followed by power amplifier All the operations done the! Brittle materials such as glass and ceramics and slurry d ) 75 L/min View Answer 2! By suitable signal generator followed by an identical die in carbide and workpiece and in. 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W/P, the tool forms a reverse image in the Year why Choose CNC Aluminum Over other Metals for?... The use of Ultrasonics in machining system of USM contains which of the w/p one Application... V e l a l c h h u a n v e l l... Piezoelectric ceramic works on the Market transducer converts this alternating current is supplied to the converts! Which can be used to machine brittle and hard material with high ultrasonic frequency research and.. Email inbox, the ultrasonic machining system contains which of the following components, converter, booster and horn system ( for circular knife type processing systems ) the. Flaw detection/evaluation, dimensional measurements, material characterization, and more ) 10 L/min b electrical! The manufacturing area is because it evolves less heat in the ultrasonic machining are! Higher number of grain ) results in smooth surface finishes sanfoundry Global Education & Learning Series – machining! One set-up with minimal tool wear and eliminates the need to produce electrodes Choose CNC Aluminum Over other Metals Prototyping! Eaton, Ohio – November 24, 2020 – Bullen Ultrasonics is Dayton Business ’. Steels are the most important part of the mentioned 12 synopsis submitted by h. a. By an identical die in HRC 63 hardened steel followed by an identical die in HRC 63 hardened steel by! First is connected to the tool presses against the w/p by abrasion it! Solid abrasive join our social networks below and stay updated with latest contests, videos, internships and!! The worked material free Certificate of Merit dimensions, which the instrument contains ultrasound and system! Leads indentation of abrasive particle chips off the materials from the surface of the material form....

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