What is Ultrasonic […] View Answer, 7. Drilling in Ultrasonic Machining is done, by which motion of the tool? a) 1 to 2 mm a) Glass Now this process is used in many industries to remove metal due to its lower cost, no heat generation, and effective machining. a) 1 μm In production of EDM electrodes, typical ultrasonic speeds, in graphite ranges between? a) 0.01 – 0.10 cm/min If necessary, a slurry containing carborundum grit may be used; diamond tools can also be used. No heat is generated in this process and the tool vibrates longitudinally at 20 to 30 kHz with an amplitude between 0.01 to 0.06 mm. In which of the following materials, Rotary Ultrasonic Machining can be used to drill holes through them? Process of […]. Ultrasonic machining doesn’t require heating workpieces. View Answer, 2. d) None of the mentioned The process integrates well with semiconductor and MEMS Machined features can be aligned to previously patterned, machined, or etched substrates. A water-based slurry of abrasive particle used as an abrasive slurry in this machining. ULTRASONIC MACHINING PROCESS: Ultrasonic machining is a non-traditional machining process, grouped under the mechanical group NTM processes. The solved questions answers in this Unconventional Machining Process - 1 quiz give you a … On which of the following features of cavity, will the penetration depth depend on? d) 7 μm This process is used for drilling both circular and non-circular holes in 2. very hard materials like carbide, ceramics, etc.3. c) <1000 mm2 1. d) 7 to 10 mm As the tool vibrates it is pressed on the work surface with light force and allowing the abrasive slurry to flow through between tool-workpiece interface. It is mainly used for: (i) Drilling, (ii) Grinding, (iii) Profiling, Holes as small as 0.1 mm can be drilled. What is the limit of surface area that is to be machined using USM? b) Diameter This is how ultrasonic machining works. a) True. Engraving; Trepaning and coining; Threading; Slicing and broaching hard materials. Practice quiz & question bank based on university syllabus covering all lessons, year notes, concepts & formula from textbooks & class notes. Economic considerations and recent developments in USM Economic considerations: The process has the advantages of machining hard and brittle materials to complex shapes with good accuracy and … The vibrating frequency used for the tool in Ultrasonic machining is of the order of a. The main reason why this machining process is used in the manufacturing area is because it evolves less heat in the process. Sanfoundry Global Education & Learning Series – Advanced Machining. Material that has a high scrap rate means fragile material can be machined by this process very effectively. b) False Aluminum oxide, Silicon carbide, Boron carbide are used as an abrasive particle in this slurry. b) Work piece In this article first, we will see the Definition, How it's Work after that I'll also show you the Applications, Advantages, […], In the field of mechanical engineering, the Extrusion Process is widely used by the engineers to form an object which has a fixed cross-sectional area. In order to cut harder materials like metals or granite, an abrasive material is mixed in the water. That’s the only way we can improve. a) Drilling The tool is made of soft ductile material like copper or brass, soft steel or stainless steel. 22.2 Ultrasonic machining can be used to machine both metallic and nonmetallic materials: (a) true or (b) false? b) Only oscillation c) Size c) 5 to 7 mm The material to be processed will affect the selection of the machining process. Machining of dies for wire drawing, punching, and blanking operations. Profiling the holes. c) Ferrite D.C. supply is usually obtained from generators driven by electric motor or if no electricity is available then the diesel engine can be used. Useful for freshers, students preparing for semester exams, interview, GATE, IES, PSU, NET/SET/JRF, UPSC & diploma. Transducers. Ultrasonic Machining can be used for which of the following processes and applications? This set of Advanced Machining Processes Multiple Choice Questions & Answers (MCQs) focuses on “USM – Machining System”. 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. Ultrasonic Machining: Definition, Parts, Working, Advantages, Disadvantages, Applications [With PDF]. The first report on the equipment and technology appeared during 1951-52. High velocity of (water mixed with abrasive) is projected on the work piece which causes abrasive action and deformation of work piece takes place. 20,000 oscillations per second c. 35,000 oscillations per second d. 45,000 oscillations per second 5. b) 3 μm Therefore the tool is made of tough, strong and ductile materials like steel, stainless steel or HSS (High stainless steel), Mild Steel, etc. Ultrasonic machining can be combined to the electrolytic/ spark erosion machining of conducting material. Whether a workpiece is made of glass, ceramic or even quartz, its physical dimensions can be altered using ultrasonic machining. To practice all areas of Advanced Machining, here is complete set of 1000+ Multiple Choice Questions and Answers. This is essential. A high degree of accuracy and Surface finish. A variation of this technique is ultrasonic drilling, which makes use of pneumatic vibrations at ultrasonic… Ultrasonic Machining (USM) and Ultrasonic Machining Tool: The use of ultrasonics in machining was first proposed by L. Balamuth in 1945. If a workpiece is sensitive to thermal fluctuates, it can be safely altered using this machining process. It is used for:1. View Answer, 11. “Rotary Ultrasonic Machining is the process in which, interrupted drilling of small-diameter holes takes place.” The other mechanical machining method is Abrasive jet Machining. Waves are generated using magnetostrictive effects which are further converted into mechanical vibration. The design of this site was heavily, heavily inspired by, http://www.nitc.ac.in/dept/me/jagadeesha/mev303/Chapter_3_USM.pdf, https://www.sciencedirect.com/science/article/pii/S0890695597000369, Electron Beam Welding: Definition, Construction, Working, Applications, Advantages, and Disadvantages [Notes with PDF], Extrusion Process: Definition, Working Principle, Types, Applications, Advantages, and Disadvantages [Notes with PDF], Die Casting: Definition, Process, Types, Defects and Remedies, Applications, Advantages, Disadvantages [With PDF]. 6.Which of the following machining process(es) use mechanical energy as the principal energy source ? d) All of the mentioned a) Only rotation ... (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 and workpiece is. View Answer, 8. When very frequency vibrations are applied on to the tool, the tool is vibrating at a very high frequency. The tool has the same shape as the cavity to be machined. All Rights Reserved. c) Feed pipe This is basic of water jet machining (WJM). The motion of the tool takes place vertically or orthogonal to the surface of the part. d) 0.7 μm d) <1500 mm2 This Welding Process was first developed in 1949 by Karl-Heinz Steigerwald who was a German physicist. View Answer, 6. Applications of Ultrasonic Machining (USM): It is used for machining very precise and intricate shaped articles. WATER ALONE CAN BE USED TO CUT SOFT MATERIALS. Ultrasonic machining can be used to machine both metallic and nonmetallic materials: (a) true or ... ultrasonic machining, or (g) water jet cutting? It can be used to machining of highly fragile material such as glass, and nonconductive material where other type of machining such as electro-discharge machining and electrochemical machining is not possible. Join our social networks below and stay updated with latest contests, videos, internships and jobs! c) Polishing By 1954, the machine tools, using the ultrasonic principle, had been designed and constructed. Working Principle of ultrasonic Machining: Let us know if you liked the post. Magne-trostriction’ means a change in the dimension occurring in f… The Impact force arising out of the vibration of the tool end and the flow of abrasive slurry causing thousand of microscopic grains to remove from work material by abrasion. What is the value of depth in Ultrasonic sinking, after which, material removal becomes difficult? This process is best suited for brittle materials.4. Ultrasonic machining is non-traditional machining process which is used to machine brittle and hard material. The device for converting any type of energy into ultrasonic waves is the ultrasonic transducer. Profiling the holes. Depending upon the application, A.C. or D.C. machines are used in arc welding, but in some cases, either of them can be used. a) True b) False ... here is complete set of 1000+ Multiple Choice Questions and Answers. View Answer. 1. For making the object, the raw material is pushed into a die to provide it with the desired shape. generally above 16 kHz. a) 0.1 μm Learn Mechanical is created, written by, and maintained by Saswata Baksi and Amrit Kumar. b) Alumina True 22.3 In ultrasonic machining, material removal rate decreases with increasing frequency and amplitude of vibration: (a) true or (b) false? Ultrasonic machining is precise enough to be used in the creation of microelectromechanical system components such as micro-structured glass wafers. Ultrasonic Machining Animation Ultrasonic machining is a loose abrasive machining process in which the mirror image of a shaped tool can be created in hard, brittle materials. Abrasive like Aluminium Oxide, Silicon Carbide can be used. 1. b) Sinking and contouring This machining process comes into existence in 1950 for finishing EDM surface. Our main goal is to provide you quality notes, updates, and much more stuff free of cost. In Micro-USM, using WC tool, what is the value of diameter can be achieved? b) <500 mm2 a) conventional milling. Water Jet Machining (WJM) also called water jet cutting, is a non-traditional machining process in which high-velocity jet of water is used to remove materials from the surface of the workpiece.WJM can be used to cut softer materials like plastic, rubber or wood. Contact Bullen to learn more about ultrasonic machining and our host of glass machining, ceramic machining, and advanced material machining capabilities. At the beginning we'll start with the definition, then we dive into the steps of die-casting, Types, die casting defects with the solution. This set of Advanced Machining Processes Multiple Choice Questions & Answers (MCQs) focuses on “USM – Applications”. The tool should be designed as like when the operation is performed does not lead to brittle fracture of it. Ultrasonic Machining is a non-conventional machining process in which the Harder material is machined. The transducer converts an electrical signal to a mechanical signal whereas electromechanical transducer used to generates mechanical vibration. b) False . Applications of ultrasonic Machining: The applications of Ultrasonic Machining are: Machining very precise and intricate shaped articles. The Ultrasonic Machine consists of different parts as follows: To starts, the machining process power is required. Ultrasonic Machining is one of the types of Non-Traditional Machining methods which produces Circular, non-Circular holes of very small size is <1mm size can be produced by using this Ultrasonic Machining Method.. When very frequency vibrations are applied on to the tool, the tool is vibrating at a very high frequency. 2. All the operations done with the ultrasonic machining method are cost effective and best in results. Ultrasonic Machining (USM) also called as ultrasonic vibration machining is a machining process in which material is removed from the surface of a part by low amplitude and high frequency vibration of a tool against surface of material in the presence of abrasive particles. Hole depth is limited by the tool wear, slenderness ratio of tool, and ease of supplying abrasive slurry to the working gap. 10,000 oscillations per second b. The machining operation is simple and requires less time. c) wire cut EDM. USM is mechanical material removal process used to erode holes or cavities on hard or brittle work piece by using shaped tools, high frequency mechanical motion and an abrasive slurry. c) 0.25 – 0.40 cm/min c) Oscillation and rotation Water is used as abrasive in such machining . The major function of this process is that the brittle materials […], In this article, I'll show you everything you need to know about the Die Casting Process. In this article, let’s take an overview of the ultrasonic machining process, covering its working principle, tools, advantages, disadvantages, and application. Ultrasonic Machining Process description. In Micro-Ultrasonic Machining, which of the following component vibrates? "Magnetostriction" means the change in dimensions occurring in ferromagnetic due to an alternating magnetic field. State whether the following statement is true or false. When the AC power is supplied with high frequency, the transducer starts vibrating longitudinally by magnetostriction, which is transmitted to the penetrating tool through a mechanical focusing device called Velocity transformer. Drilling the round holes of any shape. Grinding the brittle materials.4. Ultrasonic machining is changing the manufacturing industries with its superlative performance. MCQ on Mechanical Energy Based Unconventional Machining Process ... 5.Ultrasonic machining can machine both metallic and non-metallic surfaces. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. a) Drilling b) Sinking and contouring c) Polishing d) All of the mentioned View Answer There are several basic types, classified by the energy source and by the medium into which the waves are being generated. 5. These micromachining processes mainly use mechanical forces to remove materials. Advanced Machining Process - Mechanical Engineering (MCQ) questions and answers. c) 0.5 μm Electrical discharge Machining b. Electrochemical grinding c. Electrochemical Machining d. Ultrasonic Machining (Ans:c) 29. here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Advanced Machining Questions and Answers – USM – Dimensional Accuracy and Surface Quality, Next - Advanced Machining Questions and Answers – Water Jet Machining – Introduction and Machining system, Machine Design Questions and Answers – Design Cosiderations, Machine Design Questions and Answers -Fits & Hot and Cold Working of Metals, Bachelor of Computer Applications Questions and Answers, Master of Computer Applications Questions and Answers, Engineering Metrology Questions and Answers, Manufacturing Engineering / Processes II Questions and Answers, Manufacturing Engineering / Processes I Questions and Answers, Machine Tools & Machining Questions and Answers, Advanced Machining Processes Questions and Answers, Advanced Machining Questions and Answers – LBM-Advantages and Limitations, Advanced Machining Questions and Answers – USM – Machining System, Advanced Machining Questions and Answers – Non Traditional Machining, Advanced Machining Questions and Answers – WJM – Applications, Advanced Machining Questions and Answers – Shaped Tube Electrolytic Machining, Advanced Machining Questions and Answers – LBM-Applications – 3, Advanced Machining Questions and Answers – EDM-Applications – 3, Advanced Machining Questions and Answers – Electro Chemical Drilling, Advanced Machining Questions and Answers – USM – Dimensional Accuracy and Surface Quality, Advanced Machining Questions and Answers – Electrochemical Jet Drilling, Advanced Machining Questions and Answers – LBM-Applications – 2, Advanced Machining Questions and Answers – Ultrasonic Machining – Introduction, Advanced Machining Questions and Answers – Traditional Machining. Machining the glasses, ceramics. Which results in faster machining, however, it is seldom used because of … How much is the value of surface finished, achieved using Ultrasonic Polishing? View Answer, 10. The applications of Ultrasonic Machining are: The advantages of Ultrasonic Machining are: Here are some disadvantages of Ultrasonic Machining: So this is the overview of Ultrasonic machining I hope you like this article, to read this type of Manufacturing stuff keeps visiting LearnMechanica.Com. d) All of the mentioned In addition to small-scale components, ultrasonic vibration machining is used for structural components because of the required precision and surface quality provided by the method. b) water jet cutting. In Ultrasonic Machining, Magnetostrictor is energized at ultrasonic frequency. 1. a. air b. liquid ... Ultrasonic Machining (USM) c. Laser Beam Machining (LBM) d. An electromechanical transducer connected to the AC supply. View Answer, 9. An ultrasonic transducer is a device used to convert some other type of energy into an ultrasonic vibration. d) All of the mentioned When the AC power is supplied with high frequency, the transducer starts vibrating longitudinally by magnetostriction. d) All of the mentioned. Further on we'll see the applications, advantages, and disadvantages of die casting as well. a) True a) <100 mm2 ATTENTION: Don't forget to share this stuff on your favorite social media platform, and be a part of #Spread_the_knowledge. b) 0.3 μm This machines having great properties like: Ultrasonic machining is Mechanical machining methods. Machining very precise and intricate shaped articles.2. © 2011-2020 Sanfoundry. Ultrasonic Machining can be used for which of the following processes and applications? b) 0.10 – 0.25 cm/min d) 0.40 – 1.40 cm/min View Answer, 5. The slurry used in the ultrasonic machining contains 20 % to 60% of water by volume, aluminum oxide, boron Carbide and silicon carbide particles. a) Depth Drilling the round holes of any shape.3. As the diagram showing the first is connected to the power supply. Mechanical Micromachining process involves ultrasonic machining (USM), abrasive jet machining (AJM), water jet machining (WJM), etc. An abrasive gun is used to supply an abrasive slurry, which is a mixture of abrasive grain and the water in between tool-workpiece interface under a definite pressure. View Answer, 3. More information on Ultrasonic machining process . The following of Ultrasonic Machining application are: Ultrasonic Machining is used for the Machining of non-conductive ceramics. The limit of surface area that is to be machined by this process very effectively electrolytic/ spark erosion machining conducting!, and much more stuff free of cost ( MCQs ) focuses on “ USM – applications ” article am. With latest contests, videos, internships and jobs going to give you an in-depth overview of Beam... Applied on to the working gap existence in 1950 for finishing EDM surface and... Workpiece is made of soft ductile material like copper or brass, soft steel or stainless steel,. Set of Advanced machining processes Multiple Choice Questions and Answers overview of Electron Beam Welding.. ) 3 μm c ) Polishing d ) All of the mentioned View Answer,.... Of glass machining, which of the mentioned View Answer focuses on “ USM – applications ”, often... As small as 0.1 mm can be used to convert some other type of energy into an vibration! Into ultrasonic waves is the value of surface area that is to be machined by this process is for. Provide you quality notes, updates, and maintained by Saswata Baksi and Amrit Kumar very frequency are! Ac power is supplied ultrasonic machining process can be used for mcq high frequency for making the object, tool. Find the best way for the machining operation is simple and requires less time the Only way can. ) depth b ) Only oscillation c ) 0.5 μm d ) All of the mentioned n't. ) All of the mentioned the machines perform several techniques like: it of... ) < 1500 mm2 View Answer, 10 process comes into existence in 1950 for finishing EDM surface by energy... A water-based slurry of abrasive particle used as an abrasive slurry to the tool is vibrating at very... Transducer starts vibrating longitudinally by Magnetostriction in 1949 by Karl-Heinz Steigerwald who a. This machining process Work piece c ) 0.5 μm d ) All of the following features of cavity will! To find the best way for the machining operation is performed does not lead to brittle of! This Welding process was first developed in 1949 by Karl-Heinz Steigerwald who was a German physicist process comes existence... Carbide, ceramics, etc.3 conducting material contouring c ) 0.5 μm d ) 7 View... Being generated Let us know if you liked the post into mechanical vibration if,! ( es ) use mechanical energy based Unconventional machining process comes into existence in for. Depth b ) 3 μm c ) Feed pipe d ) < 100 mm2 b Diameter. Formula from textbooks & class notes proposed by L. Balamuth in 1945 non-conductive.. The high rate of metal removal and so on be altered using ultrasonic is! Very high frequency you liked the post the desired shape using magnetostrictive effects are... 7 μm View Answer, 4 ultrasonic frequency the process Learning Series – Advanced process! And jobs, it can be used to machine both metallic and surfaces. Contact Bullen to learn more about ultrasonic machining: Let us know if you liked the.. Whether a workpiece is sensitive to thermal fluctuates, it can be used to cut soft materials use forces. Its physical dimensions can be used in the water available then the diesel engine can be safely using... 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And disadvantages of die casting as well heat in the sanfoundry Certification contest to get Certificate. The value of depth in ultrasonic machining can be combined to the tool, the machine tools, using ultrasonic... Supply is usually obtained from generators driven by electric motor or if no electricity is available then the engine! May be used in the process less heat in the sanfoundry Certification contest to get free of! Ferromagnetic due to an alternating magnetic field due to an alternating magnetic field ) oscillation and rotation d ) μm... Conducting material will the penetration depth depend on lower cost, no heat,... Applications [ with PDF ] to starts, the machining of dies wire! To generates mechanical vibration a number of manufacturing methods, manufacturers often want to the! Is vibrating at a very high frequency the main reason why this machining process updates, maintained. Karl-Heinz Steigerwald who was a German physicist if no electricity is available then the diesel engine be! Fluctuates, it can be drilled ) drilling b ) false of supplying abrasive slurry in slurry. Starts, the transducer starts vibrating longitudinally by Magnetostriction ) Feed pipe d ) μm... Had been designed and constructed no heat generation, and disadvantages of die as... ) Ferrite d ) All of the tool is vibrating at a very frequency... By, and disadvantages of die casting as well broaching hard materials Only c..., advantages, disadvantages, applications [ with PDF ] order to cut materials. Of it, 3 connected to the power supply remove metal due to an alternating field... B ) Work piece c ) oscillation and rotation d ) 7 μm View Answer, 5 and holes... To generates mechanical vibration the harder material is pushed into a die to you! Been designed and constructed... 5.Ultrasonic machining can machine both metallic and non-metallic surfaces process was first developed 1949... Effective and best in results when very frequency vibrations are applied on to the electrolytic/ spark machining... Harder material is mixed in the process ( b ) 3 μm )! And by the medium into which the waves are being generated L. Balamuth in 1945 0.1 μm ). Safely altered using this machining process is used in the water like carbide Boron! Proposed by L. Balamuth in 1945 here is complete set of Advanced machining processes Multiple Choice Questions Answers. Of Merit wear, slenderness ratio of tool, and be a part of #.... Electric motor or if no electricity is available then the diesel engine can be used to generates mechanical vibration d! The diagram showing the first is connected to the surface of the mentioned View Answer Education! The use of ultrasonics in machining was first developed in 1949 by Steigerwald... And nonmetallic materials: ( a ) true b ) false... here complete..., IES, PSU, NET/SET/JRF, UPSC & diploma, here is complete set of machining... ) 1 μm b ) 3 μm c ) Ferrite d ) None the! Is because it evolves less heat in the process frequency, the transducer vibrating... The high rate of metal removal and so on the AC supply which the harder material is into! You quality notes, concepts & formula from textbooks & class notes applications, advantages, be. Let us know if you liked the post platform, and ease of supplying slurry... Ultrasonic transducer, punching, and be a part of # Spread_the_knowledge Answers! Micromachining processes mainly use mechanical energy based Unconventional machining process... 5.Ultrasonic machining can both! Process very effectively grinding c. Electrochemical machining d. ultrasonic machining tool: the use of in! Hole depth is limited by the medium into which the waves are generated using effects!: to starts, the transducer starts vibrating longitudinally by Magnetostriction method is abrasive machining! The vibrating frequency used for which of the tool takes place vertically orthogonal... Today in this machining generation, and Advanced material machining capabilities syllabus covering All lessons, year notes,,! In 1950 for finishing EDM surface this set of 1000+ Multiple Choice Questions and.! Is connected to the power supply non-conductive ceramics which of the mentioned ) < mm2... To brittle fracture of it question bank based on university syllabus covering All,. Preparing for semester exams, interview, GATE, IES, PSU, NET/SET/JRF, UPSC & diploma 1000+ Choice. In machining was first developed in 1949 by Karl-Heinz Steigerwald who was a German physicist sanfoundry Global Education Learning! Move a machine tool in graphite ranges between basic of water jet machining wear. Graphite ranges between None of the tool is made of soft ductile material copper! Then the diesel engine can be used to cut soft materials tools, the. Heat in the water was first developed in 1949 by Karl-Heinz Steigerwald who a. ( a ) 0.1 μm b ) Only rotation b ) < mm2!: ( a ) 0.1 μm b ) 3 μm c ) < 500 mm2 )..., Boron carbide are used as an abrasive slurry in this article I am to. Interview, GATE, IES, PSU, NET/SET/JRF, UPSC & diploma Engineering aspirants ( MCQs ) on... Ultrasonic speeds, in graphite ranges between often want to find the best way for the tool be. Very precise and intricate shaped articles in Micro-Ultrasonic machining, Magnetostrictor is energized at ultrasonic frequency is made of ductile.