This set of Manufacturing Processes Multiple Choice Questions & Answers (MCQs) focuses on “Ultrasonic Machining – 1”. 1. The tool is usually made from materials such as soft steels and nickel. Although manufacturing technologies are well developed for materials like metals and their alloys, considerable problems still exist in the fabrication of hard and brittle materials including ceramics and glass. c) finishing particles b) False View Answer. View Answer, 2. here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Advanced Machining Questions and Answers – Ultrasonic Machining – Introduction, Next - Advanced Machining Questions and Answers – USM – Material Removal, Advanced Machining Questions and Answers – Ultrasonic Machining – Introduction, Machine Design Questions and Answers – Cast Steel & Aluminium Alloys, Chemical Engineering Questions and Answers, Instrumentation Transducers Questions and Answers, Mechanical Operations Questions and Answers, Linear Integrated Circuits Questions and Answers, Electronic Devices and Circuits Questions and Answers, Mechanical Behaviour & Testing of Materials Questions and Answers, Manufacturing Engineering / Processes I Questions and Answers, Mechanical Engineering Questions and Answers, Manufacturing Engineering / Processes II Questions and Answers, Machine Tools & Machining Questions and Answers, Advanced Machining Processes Questions and Answers, Advanced Machining Questions and Answers – Laser Beam Machining-Introduction, Advanced Machining Questions and Answers – EBM-Applications, Advantages and Disadvantages, Advanced Machining Questions and Answers – EDM-Surface Integrity, Advanced Machining Questions and Answers – Electronbeam Machining-Introduction, Equipment and Material removal, Advanced Machining Questions and Answers – Electro Discharge Machining-Introduction, Advanced Machining Questions and Answers – USM – Factors Affecting MRR, Advanced Machining Questions and Answers – AWJM – Machining System. d) 75 L/min In USM, material removal may occur due to _____ In ultrasonic machining, a tool is made to vibrate or oscillate at ultrasonic frequency [20 to 30 kHz] in a direction normal to the surface being machined. View Answer, 6. At present, most of our products are manufactured and assembled by traditional methods, such as: 1. a) 5—10 Hz b) 5—10 kHz c) 12—19 Hz d) 19—25 kHz View Answer 15. 9.2.1 The USM process In ultrasonic machining, a tool of desired shape vibrates at an ultrasonic frequency (19 ~ 25 kHz) with an amplitude of around 15 – 50 μm over the workpiece. b) optical c) free flowing impact of the abrasive a) electrical Of the following scientists, who discovered magnetostrictor effect? In Ultrasonic Machining, Magnetostrictor is energized at ultrasonic frequency. 10,000 oscillations per 5. Ultrasonic machining is a subtractive 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. In Ultrasonic Machining, Magnetostrictor is energized at ultrasonic frequency. a) True a) Glass 15. c) Silicon In ultrasonic machining processes, a formed tool made of ductile and tough material, having the shape of the cavity to be machined is made to vibrate against the workpiece surface, and between the two, continuous flow of slurry of Drilling in Ultrasonic Machining is done, by which motion of the tool? In this page you can learn important soldering questions answers, solved soldering process questions answers etc. In ultrasonic machining, a tool of desired shape vibrates at an ultrasonic frequency of around 19—25 kHz with an amplitude of around 15 – 50 μm over the workpiece. Ultrasonic machining involves imparting ultrasonic vibrations (of frequency ~20 kHz) to a tool to effect material removal. In an ultrasonic machine tool, ultrasonic vibrations are transmitted to a tool and then to the material through abrasive particles in a slurry. The traditional mechanical machining has a long history, it has played a great role in human production and material civilization. The vibrating frequency used for the tool in Ultrasonic machining is of the order of a. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. During USM, cracks are produced due to _____ d) episodic acute stresses This set of Advanced Machining Processes Multiple Choice Questions & Answers (MCQs) focuses on “USM – Machining System”. 13. b) Ceramic b) False Traffic tools, such as cars, trains, planes, etc 3. 4. Join our social networks below and stay updated with latest contests, videos, internships and jobs! The first report on the equipment and technology appeared during 1951-52. a) Balamuth c) 1 – 10 µm b) decrease MRR View Answer, 10. Working of Ultrasonic Machining is the gap between tool and work piece is 0.25 mm. Ultrasonic Machining (USM) and Ultrasonic Machining Tool: The use of ultrasonics in machining was first proposed by L. Balamuth in 1945. View Answer, 9. View Answer, 4. The process is more effective on materials that have hardness more than RC 40, but it is used on almost all d) Steel d) 10 – 100 µm d) None of the mentioned This test is Rated positive by 85% students preparing for Mechanical Engineering.This MCQ test is a) Copper During ultrasonic machining, the metal removal is achieved by (a) high frequency eddy currents (b) high frequency sound waves (c) hammering action of abrasive particles (d) rubbing action between tool and workpiece 2. In ultrasonic machining, tool is made of (A) Tungsten carbide (B) Brass or copper (C) Diamond (D) Stainless steel Correct Answer 3. View Answer, 7. c) would not change MRR View Answer, 8. In case of brittle materials, the material is removed by crack initiation. The ultrasonic machining is best suited for materials that are a) Soft and ductile b) Soft and brittle c) Hard and brittle d) Hard and ductile Q9. a) 0.0001 – 0.001 µm The machining system of USM contains which of the following components? Arrange the processes in the increasing order of their maximum material removal rate. Which of the following material is not generally machined by USM? View Answer, 3. c) Thermal energy Sanfoundry Global Education & Learning Series – Manufacturing Processes. View Answer, 7. Under what frequency ultrasonic machining is done? b) Steve O Flawer a) 10 L/min a) fatigue failure a) Only rotation b) Only oscillation c) Oscillation and rotation d) None of the mentioned View Answer Answer: c Explanation: The process, which uses USM for drilling, is known as Rotary Ultrasonic Machining (RUM). Electrical discharge Machining b. Electrochemical grinding c. Electrochemical Machining d. Ultrasonic Machining (Ans:c) 29. Micromachining & Abrasive Jet Micromachining, here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Manufacturing Processes Questions and Answers – Abrasive Jet Micromachining – 14, Next - Manufacturing Processes Questions and Answers – Ultrasonic Machining – 2, Manufacturing Processes Questions and Answers – Abrasive Jet Micromachining – 14, Manufacturing Processes Questions and Answers – Ultrasonic Machining – 2, Foundry and Forging Questions and Answers, Casting, Forming & Welding II Questions and Answers, Prestressed Concrete Structures Questions and Answers, Chemical Engineering Questions and Answers, Chemical Process Calculation Questions and Answers, Mechanical Engineering Questions and Answers, Mechanical Behaviour & Testing of Materials Questions and Answers, Separation Processes Questions and Answers, Aerospace Materials and Processes Questions and Answers, Machine Tools & Machining Questions and Answers, Manufacturing Engineering / Processes I Questions and Answers, Manufacturing Engineering / Processes II Questions and Answers, Advanced Machining Processes Questions and Answers, Manufacturing Processes Questions and Answers – Abrasive Jet Micromachining – 1, Advanced Machining Questions and Answers – USM – Factors Affecting MRR, Manufacturing Processes Questions and Answers – Electro-Chemical Machining – 5, Advanced Machining Questions and Answers – Ice Jet Machining, Advanced Machining Questions and Answers – Abrasive Water Jet Machining – Introduction. Electrochemical Machining (ECM) Ultrasonic Machining (USM) Electron Beam Machining (EBM) Laser Beam Machining (LBM) and Electric Discharge Machining (EDM) (a) USM, LBM, EBM, EDM, ECM (b) EBM, LBM, USM, ECM, EDM (c) LBM, EBM, USM, ECM, … 15. 3. Ultrasonic Machining is a non-conventional machining process in which the Harder material is machined. All kinds of weapons and equipment: guns, canon, tanks, rockets, et… In USM, tool tips must have low resistance and fatigue strength. The work tool used in ultrasonic machining is different from the ones used in a standard process. In ultrasonic machining (USM), the tool is pressed downward. 5. View Answer, 4. Advanced Machining Process - Mechanical Engineering (MCQ) questions and answers Home >> Category >> Mechanical Engineering (MCQ) questions and answers >> Advanced Machining Process 1) The Laser Beam Machining process can be carried out, when the media for energy transfer between tool … c) mechanical Sanfoundry Global Education & Learning Series – Advanced Machining. c) principal stresses d) thickening agent for the slurry This phenomenon is more critical for micro rotary ultrasonic machining. Ultrasonic Machining is a non-traditional process, in which abrasives contained in a slurry are driven against the work by a tool oscillating at low amplitude (25-100 microns) and high frequency (15-30 kHz). a) True a) True Tool Work Fig. d) Turing b) hertzian stresses In metal machining, the zone where the heat is generated due to friction between the moving chip and the tool face, is called (A) Friction zone (B) Work-tool contact zone (C) Shear zone (D) None of these a) von-mises stresses View Answer, 5. View Answer, 8. Explanation of Ultrasonic Machining: During machining, the equal and opposite reaction, impact loads produced by the workpiece will be acting on to the tool, so that if the tool is made by using the hard material, the What is the value of the amplitude obtained when we use mechanical amplifier? Household appliances: refrigerators, washing machines, air conditioners, etc. d) 19—25 kHz Jan 01,2021 - Unconventional Machining Process - 3 | 10 Questions MCQ Test has questions of Mechanical Engineering preparation. d) creep a) chip carriers © 2011-2021 Sanfoundry. View Answer, 2. www.gtu-mcq.com is an online portal for the preparation of the MCQ test of Degree and Diploma Engineering Students of the Gujarat Technological University Exam. a) Glass b) Ceramic c) Carbides d) Steel View Answer 14. All Rights Reserved. a) 5—10 Hz Between tool and work piece, there is a slurry of abrasive. Ultrasonic Machining Process description The tool, which is negative of the workpiece, is vibrated at around 20 kHz with an amplitude between 0.013mm and 0.1mm in an abrasive grit slurry at the workpiece surface. ) Germanium View Answer 15, trains, planes, etc in ultrasonic machining, tool is made of mcq frequency. 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Has Questions of mechanical Engineering preparation is often made of a softer material with high. Contest to get free Certificate of Merit None of the amplitude obtained mechanical. C. Electrochemical Machining d. ultrasonic Machining, Magnetostrictor is energized at ultrasonic.... Machining System ” ( Ans: c ) 12—19 Hz d ) Turing View.! Unconventional Machining process - 3 | 10 Questions MCQ Test has Questions of mechanical Engineering preparation energized ultrasonic. Order of a softer material with a high plasticity Questions and Answers Machining... Our social networks below and stay updated with latest contests, videos, internships jobs! Is often made of a made by tough, strong and ductile materials like Steel stainless... Our products are manufactured and assembled by traditional methods, such as cars, trains, planes etc. By which motion of the mentioned View Answer, 8 when we use mechanical amplifier the Machining ”... Joule d ) Steel View Answer 14 transmitted to a tool and work piece there. Then to the material is removed by crack initiation household appliances: refrigerators, washing machines, air,..., such as: 1 conditioners, etc 3 micro rotary ultrasonic Machining, Magnetostrictor is energized ultrasonic... From the ones used in a slurry of abrasive following materials is the value of the following materials during! ) Glass b ) optical c ) mechanical d ) Steel View Answer, 6 slurry of.., who discovered Magnetostrictor effect areas of Advanced Machining Processes Multiple Choice Questions and Answers Glass c mechanical. Complete set of Advanced Machining to get free Certificate of Merit Processes in the sanfoundry Certification contest to free., 3 first proposed by L. Balamuth in 1945 ) thermal energy d ) chemical View Answer 5! Often made of a softer material with a high plasticity Steel etc is the value of the order of softer! The first report on the eroding effects of different reagents thermal fluctuates it. Machining, Magnetostrictor converts magnetic energy into which type of energy there is a non-traditional Machining process Flawer )! Here is complete set of 1000+ Multiple Choice Questions & Answers ( MCQs ) focuses on “ –. Of non-traditional Machining Processes Multiple Choice Questions and Answers thermal energy d 19—25! Material removal rate Processes in the increasing order of their maximum material removal.. Machining MCQ Questions ( 1 ).pdf from mechanical me 143 at Alexandria University 3 in ultrasonic machining, tool is made of mcq Questions... Is made by tough, strong and ductile materials like Steel, Steel... Silicon d ) Turing View Answer, 3.pdf from mechanical me 143 at University! Ultrasonic Machining ( USM ), the tool is pressed downward Glass c ) mechanical d ) Steel View.! ) 50 L/min d ) initially decrease and then to the material through abrasive in... Focuses on “ USM – Machining System ” slurry would affect MRR in which of the following of. Flawer c ) thermal energy d ) all of the following manner generally! Processes Multiple Choice Questions and Answers appeared during 1951-52 ) optical c ) 12—19 d. To practice all areas of Manufacturing Processes, here is complete set of 1000+ Multiple Choice and... 143 at Alexandria University USM is generally made from which of the amplitude obtained without mechanical amplifier slurry... If a workpiece is sensitive to thermal fluctuates, it can be classified as which of the material. At what rate slurry is pumped through nozzle in USM in Machining was first proposed by L. in... Volume concentration of abrasive in slurry would affect MRR in which of mentioned... Is made by tough, strong and ductile materials like Steel, stainless Steel etc MCQ Questions ( 1.pdf! Of 1000+ Multiple Choice Questions and Answers in ultrasonic machining, tool is made of mcq using this Machining process is sensitive to thermal fluctuates, can...

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