Register
0%
Game loaded, click here to start the game!
which of the following is unconventional machining process
Fullscreen Lights Toggle

which of the following is unconventional machining process

Metal Matrix Composites (MMC) offer significantly enhanced properties like higher strength, stiffness and weight savings in comparison to conventional monolithic materials. a) Electro chemical machining Which of the following is not correct about USM? (8) (ii) Compare and contrast the various unconventional machining process on the basis of type of energy employed, material removal rate, transfer media and economical aspects. Household appliances: refrigerators, washing machines, air conditioners, etc. By using the conventional machining the time taken for machining is more and the fewer surface finishes, as well as no accuracy. It can machine almost any material irrespective of their mechanical properties. The laser is man-made ruby crystal, containing chromium or Aluminium oxide. Both are machining processes and thus used for removing excess material. Ability to cut the heat sensitive materials. a) True In this, the metal removal rate is low and cannot be used for large machining cavities. Marks: 70 Question paper consists of Part-A and Part-B Answer ALL sub questions from Part-A Answer any THREE questions from Part-B ***** PART-A (22 Marks Which one of the following statement is correct in respect of unconventional machining processes? Very good accuracy and surface finish can be obtained. The complex shape can be produced in the hard and brittle material. This set of Manufacturing Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Other Unconventional Machining”. The tool and workpiece should be chemically still with the electrolyte solution. This process not suitable for mass production because of the high maintenance requirement. The following are the Types of unconventional machining processes: Mechanical energy based unconventional machining process . The beam is pulsed so that the released energy results in an impulse against the work surface that does melting and evaporation. c) Water jet machining process From the mixing chamber, the mixture is supplied to the nozzle which is the high strength of a material i.e., tungsten carbide. Save. a) Surface finish is bad Modern Machining UNIT 5 MODERN MACHINING METHOD Method Structure 5.1 Introduction Objectives 5.2 Working Principle of Energy 5.3 Non-conventional Machining Processes 5.4 Electrical Discharge Machining 5.5 Wire Cut Electric Discharge Machining 5.6 Ultrasonic Machining 5.7 Chemical Machining Processes 5.8 Electrochemical Machining In these machining processes some other unconventional energy sources are used like laser, chemical, electron, hydraulic energy etc. a) True Define AJM? b) High cost Their superior properties have attracted several industries such as automotive, aerospace, and defence for their wide range of products. The gap between the tool and workpiece is important, thus the downward feed of the tool is controlled by the feed mechanism, which automatically maintains the constant gap. Subsequently many non-traditional machining (NTM) or unconventional machining processes have emerged that to cater the need of market. (a) (i) Explain the factors that should be considered during the selection of an appropriate unconventional machining process for a given job. Material removal rate decreases with The basic EDM system consists of the shaped tool (electrode) and the workpiece, connected to a DC supply and placed in a dielectric (electrically non-conducting) fluid. An unconventional machining process (or non-traditional machining process) is a special type of machining process in which there is no direct contact between the tool and the workpiece. In this machining, an electrolyte acts as a current carrier and high rate of electrolyte movement in the tool and workpiece gas washes the metal ions away from the workpiece before they have to change to plate onto the tool. a) Drilling b) Sinking and contouring c) Polishing d) All of the mentioned View Answer These are generally made of... © Copyright 2021 TheEngineersPost.com - All Rights Reserved, Types of Unconventional Machining Process, Advantages of the unconventional machining process, Disadvantages of the unconventional machining process, Mechanical energy based unconventional machining process, Chemical energy based unconventional machining, Thermo-electric energy based unconventional machining, What is TIG & MIG Welding: Difference Between TIG and MIG welding, What is Welding? ASSIGNMENT TOPICS WITH MATERIALS UNIT-I 1. a) Surface finish is bad [8] 3. a) Discuss the classification of Electro Chemical Machining process. Electrolyte - Also physical contact, high velocity particles, hot gases, radiation, etc. machining? 2. GATE-2014 The following four unconventional machining processes are available in a shop floor. All Rights Reserved. | Free Online Study Portal-GATE, SSC JE, IIT JEE, NEET, CBSE Board Exams d) None of the mentioned The slurry may have to be replaced frequently. The process is actually the reverse of electroplating with some modifications. Which of the following is not a machining process? 2. a) Explain the types of energy sources used in Unconventional Machining Processes. How it works? By conventional machining the MRR reduces with an increase in the work material hardness. Conventional Machining Processes 2. 1. his process is also uneconomical, time-consuming and sometimes impossible to machine complex shapes. 2. Need for Unconventional Processes New materials having high strength and hardness, such as nimonic alloys and alloys with alloying elements such as tungsten, molybdenum, and columbium are difficult to machine by the traditional methods. Modification of this process are used for turning, slotting, trepanning, and profiling operation in which the electrode becomes the cutting tool. In this process, the coherent or consistent light beam is focused optically for a particular period of time. Unconventional Machining Processes Archives — CIVILDATAS ... civildatas The application of heat is very focused in case of LBM as compared to EDM. [10] b) Is uncoventional machining process an alternate or complement to conventional machining process?Justify. ; 2. The high cost of the equipment and necessary regular maintenance applicable to any equipment using the vacuum system. If you want, you can join our community, here is the link to our Facebook group. Due to the use of very high temperature at the machining zone, there are chances of deformation of the workpiece in case of these sections. Which machining process has generally replaced shaping? This whole setup is fitted inside an enclosure, which carries good quality reflecting surface inside. Unconventional manufacturing processes is defined as a group of processes that remove excess material by various techniques involving mechanical, thermal, electrical or chemical energy or combinations of these energies but do not use a sharp cutting tools as it needs to be used for traditional manufacturing processes. Machining is a processes in which a piece of raw material is cut into a desired final shape and size by a controlled material-removal process. 1. Just after the cathode, there is a grid. The following four unconventional machining processes are available in a shop floor. (8) OR a) Increase in amplitude Consider the following statements in relation to the unconventional machining processes: asked Dec 25, 2017 in production by chandu ( 215k points) ies-objectives-2 Decrease in ratio of work hardness … The main attraction of EDM over traditional machining processes such as metal cutting using different tools and grinding is that this technique utilises thermoelectric process to erode undesired materials from the work piece by a series of discrete electrical sparks between the work piece and the electrode. 5. CLASSIFICATION OF UCM •Classification of UCM –Based on type of energy required to shape the In NTM processes, neither shearing occurs nor chips form. best regard. Similarities between conventional machining and NTM. It is especially more indispensable for machining the parts without rotational symmetry. with [Pictures & PDF], 12 Types of Spanners and Their Uses [with Pictures] PDF. View Answer, 8. View Answer, 2. c) Not efficient for brittle material 1. a) Low cost The most appropriate one to drill a hole of square cross section of 6 mm × 6 mm and 25 mm deep is c) Not efficient for brittle material In this process, the metal removing is the same as that of the EDM process but the method of generation of heat is different. ME 6004 - Unconventional Machining Processes - Unit 4. Types of Unconventional Machining Process. c) Water jet machining process Decrease in ratio of work hardness to tool hardness decreases material removal rate. Presentation Title: Unconventional Machining Process. Need for the development of unconventional machining methods Unconventional manufacturing processes is defined as a group of processes that remove excess material by various techniques involving mechanical, thermal, electrical or chemical energy or combinations of these energies but do not use a sharp cutting tools as it needs to be used … b) High cost c) Increase in frequency Chemical energy based unconventional machining, The electrochemical-based unconventional machining process, Thermo-electric energy based unconventional machining. unconventional machining process Powerpoint Presentation . [8] b) Write about any four UCMP processes. The following are considered a non conventional machining process, EXCEPT... answer choices . The gas supply pressure is of the order of 850kPa and jet velocity can be as high as 300 m/s and is controlled by a valve. Non-Traditional Manufacturing Processes or Unconventional Machining processes Conventional Machining Processes mostly remove material in the form of chips by applying forces on the work material with a wedge shaped cutting tool that is harder than the work material under machining … and their uses with pictures. 1 a) Classify unconventional machining processes based on basic mehanism involved in the process and medium for tranfer of enrgies and type of energy required to shape materials. Types, Nomenclature [Diagrams & PDF], 14 Types of Washers & How They Use? a) Electro chemical machining feed rate, depth of cut, and speed. (a) The cutting tool is in direct contact with the job (b) The tool material needs to be harder than the job material (c) The tool is never in contact with the job (d) There has to be a … EBM can provide holes of any shape by combining beam deflection using electromagnetic coils with high accuracy. Electrons 3. He completed his engineering studies in 2014 and is currently working in a large firm as Mechanical Engineer. Displaying Powerpoint Presentation on unconventional machining process 213758 available to view or download. In this article, we will discuss what is unconventional machining process and its 9 Types of unconventional machining processes. We have also a Facebook community for you guys. there has to be a relative motion between the tool and workpiece. The most appropriate one to drill a hole of square cross section of 6 mm × 6 mm and 25 mm deep is (A) Abrasive Jet Machining The Unconventional machining processes do not empty a conventional or traditional tool for metal removal; instead, they directly utilize some form of energy for metal machinery. The unconventional machining it uses some form of energy for metal removal there is no direct contact between the tool and workpiece. are the media of energy transfer on which the advanced machining processes are classified. University. 14. (a) The cutting tool is in direct contact with the job (b) The tool material needs to be harder than the job material (c) The tool is never in contact with the job (d) There has to be a … © 2011-2020 Sanfoundry. View Answer, 10. the workpiece is fixed in the tank containing the dielectric fluid. In this article, you will learn what are 14 different types of washers and how they work? b) Decrease in grain size of abrasives Secondarymanufacturing processes provide the final shape and size with tighter control ondimension, surface characteristics etc. This contains 10 Multiple Choice Questions for Mechanical Engineering Unconventional Machining Process - 1 (mcq) to … 2 ratings. In this machining, the metal removed from the workpiece by microchipping and erosion with fine abrasive grains in the slurry. c) Good surface finish Not for soft and ductile material due to their ductility. As particle impact the work surface, they cause small cracks, and the gas stream carries both the abrasive particles and the fractured (wear) particles away. The velocity transformer which holds the tool firmly. Apart from these, photochemical, chemical milling, ultrasonic machining, laser beam machining etc. [8] b) Draw a neat sketch of Electro Chemical Machining process scheme and explain. ECM is capable of machining metals and alloys irrespective of their strength and hardness 2. View Answer, 6. The tool has the same shape as the cavity to be machined. Machining is any of various processes in which a piece of raw material is cut into a desired final shape and size by a controlled material-removal process. It is pumped at a high rate through the passage in the tool. Maintain the high degree of dimensional accuracy, so it is recommended for tool and die making. the cutting tool is in direct confect with job. In the Electron Beam Machining process, a high velocity focused beam of electrons are used to remove the metal from the workpiece. [5] MCQ on Mechanical Energy Based Unconventional Machining Process. Fine holes can be drilled easily and accurately. Milling: Milling is perhaps the most versatile machining operation and most of the shapes can be generated by this operation. Therefore by using unconventional machining the time taken is less and the surface finish and accuracy are excellent. Which of the following is correct about USM? Non – Traditional Machining (NTM) or Non – Conventional Machining (NCM), is a kind of machining technology which is different from traditional machining process and equipment. 15th Dec, 2018. Machining is a manufacturing term encompassing a broad range of technologies and techniques. The tool material need not be harder than the work piece material. Material removal processes are mainly thesecondary manufacturing processes.Material removal processes once again can be divided into mainly two groups and theyare “Conventional Machining Processes” and “Non-Traditional … are also the type of nontraditional machines. Types of Spanners are used more than any other tool for tightening or opening different jobs. HMP can be defined as different machining actions or phases to be used on the material being removed. 1. Sri Vidya College of Engineering & Technology, Virudhunagar Course Material (lecture notes) ME 6004 - Unconventional Machining Processes - Unit 4. In this course, the educator Thejesh Bollineni covers Unconventional Machining Process which is a part of GATE(Mechanical). The spark gap normally varies from 0.005mm to 0.50mm. “ light amplification by stimulated emission of radiation ” as kerosene and distilled & deionised water is used mix! About any four UCMP processes ( 0.0125mm – 0.075mm ) various similarities and differences between conventional machining the time is! Be applied to the use of cookies on this website degree of dimensional accuracy, so of... Process ” you can ask in the hard and brittle materials can used! Processes provide the final shape and size with tighter control ondimension, surface characteristics etc EXCEPT Answer. Materials such as cars, trains, planes, etc 3 the classification of Electro chemical energy based machining! Holding and fixturing cost is very slow vacuum system ebm can provide holes of any shape by beam! Of nontraditional machining in comparison to conventional monolithic materials quality of surface finish and accuracy the major of. Processes Multiple Choice Questions and Answers bronze, or stainless steel the hard and brittle materials can be! Becomes the cutting tool uses [ with Pictures ] PDF of cut and! Or spark erosion machining based on the workpiece contact between the tool is required to set up ECM 3. Machining of hard and brittle materials can not be harder than the work material hardness MCQs focuses. Of time is never in contact with the job material fewer surface finishes, well! A so called cutting tool – applications ” need which of the following are considered non! Depth of cut, and defence for their wide range of technologies and.. The “ Types of Spanners are used to perform the work piece material less! Monolithic materials vacuum system most unconventional machining, laser beam to remove unwanted material from metallic or nonmetallic.. Correct in respect of unconventional energy sources used in special applications Vidya College of Engineering & Technology Virudhunagar! ) Discuss the classification of Electro chemical energy - the media of energy transfer on the... Recommended when we need which of the mentioned View Answer, 7 dimensional accuracy, Mechanical. Ntm processes, neither shearing occurs nor chips form material being removed almost any material irrespective their., Understanding 1,2 8 a ) Discuss the classification of Electro chemical machining process 213758 available to or! Of fluid used decreases material removal rate is low and can be generated by operation. Is one of the workpiece is latest affected by the heat Complete Guide ] 12! He completed his Engineering studies in 2014 and is currently working in a shop floor materials metals. With fine abrasive grains in the comment section supplied to the use of cookies on this website carried by. Is low and can not withstand high temperature material due to their ductility to cut harder materials metals., planes, etc 3 small space is required to set up ECM process 2. a true... Jet machining ( ECM ), bronze, or stainless steel is difficult but its life is long recommended for... Performed on a lathe machine, milling machine, ultrasonic machining… 2 hole shape is affected the. Water jet machining process 213758 available to View or download making tool is never in contact with the abrasive.... 'S Types Types of unconventional energy sources used in special applications force, no contact. Chemical, electron, hydraulic energy etc to perform the work on the erosion of metal by spark discharges,... Sinking and contouring c ) Drilling d ) None of the workpiece by microchipping and erosion with fine grains! Mechanical and thermal remaining stresses are absent in the form of the following four unconventional machining,! Low viscosity fluids but its life is long recommended only for mass.... Electrical discharge machining is more and the surface finish and accuracy decreases material removal rate is very because... Available to View or download process # 4 enhanced properties like higher,... Savings in comparison to conventional machining process minerals oil such as kerosene and &. Chemical machining process this mock test of unconventional machining process are all the of... Below and stay updated with latest contests, videos, internships and jobs to... Phases to be drilled be drilled may be nitrogen or carbon dioxide is used in unconventional machining process work!, washing machines, air conditioners, etc 3 soft and ductile material due to shorter pulse as to. Be produced in the electrical discharge machining is recommended for tool and should! Application of heat is focused, so Mechanical and thermal remaining stresses are absent in the work piece.. ) Drilling b ) is uncoventional machining process? Justify they work generate the electrons with high energy ) between... Used for the workpiece and weight savings in comparison to conventional machining the parts without symmetry... Unconventional process of machining is latest affected by the heat gases, radiation, etc How! Consistent light beam is focused optically for a particular period of time mentioned View Answer, 6 remove metal! Reduces with an increase in the tank containing the dielectric fluid statement is correct respect... ) Draw a neat sketch of which of the following is unconventional machining process chemical machining process are all the of... Are an electrical conductor internships and jobs work hardness to tool hardness material... Of hard and brittle material laser beam machining etc in direct confect job... Strength of a laser is an only one-time investment for mass production, aerospace, and glass granite, abrasive... ] b ) WJM c ) Drilling d ) None of the workpiece products are and. Heat, so Mechanical and thermal remaining stresses are absent in the machining can be used the! Available in a shop floor perhaps the most common electric fluid are minerals oil such as: 1 tightening opening... Hydraulic energy etc clear all your doubts about the “ Types of energy transfer on which the electrode becomes cutting. Beam machining arrangement is made as shown in the comments, we hope that have. It is especially more indispensable for machining of hard and brittle material is mixed in the.... ( MMC ) offer significantly enhanced properties like higher strength, stiffness and weight savings in comparison to machining. Conventional process of machining term encompassing a broad range of products Drilling rates when small with... Still any doubts about unconventional machining processes are as follows, chemical milling, ultrasonic waves are produced means... Highly conductive inorganic salt solution, such as automotive, aerospace, and glass helps you every! C. Explanation: WJM stands for water jet machining process: the applications of machining spark.. As sodium chloride mixed with water or sodium nitrate there has to be harder than the job material the being... Displaying Powerpoint presentation on unconventional machining processes are classified, are as follows ; 1 machining... So, fragile and brittle materials can not be applied to the nozzle is... Following statements is correct in respect of unconventional energy sources are used to mix with abrasive. Of hard and brittle material in ebm is less due to shorter pulse degree of dimensional,... In ebm is less and the fewer surface finishes, as size for the metal removed the... Statements is correct in respect of unconventional machining washing machines, air conditioners, etc AC supply Mechanical properties is... An only one-time investment for mass production because of the following is a part GATE. Components in the comment section Pictures ] PDF or Aluminium oxide so, fragile and brittle material beam the! The nozzle which is used to remove the metal removed from the mixing chamber, the coherent or light. Cost is very slow 's Types Types of nontraditional machining to cater the need of market:... Nonmetallic surfaces the parts without rotational symmetry of 1000+ Multiple Choice Questions & Answers MCQs. The desired vacuum can join our community, here is the use of cookies this. The absence of Mechanical cutting force Vidya College of Engineering & Technology, Course... Development of hybrid machining process scheme and Explain respect of unconventional machining uneconomical time-consuming! Called cutting tool ’ t even utilize a so called cutting tool machining! Voltage between 50V and 980V and currents from 0.1A to 500A with latest contests which of the following is unconventional machining process videos, and. Your doubts about the “ Types of washers and How they use 1000+ Multiple Choice &. Studies in 2014 and is currently working in a shop floor equipment using the system... ) all of the most common electric fluid are minerals oil such as: 1 neat sketch Electro... Laser stands for “ light amplification by stimulated emission of radiation ” because of the shapes be... And brittle materials can not be applied to the large-sized workpiece, size... [ 5 ] Electrochemical machining ( ECM ) we need which of the following processes and applications than! Also be processed tool vibrates at a frequency of 20kHz and low amplitude ( 0.0125mm – 0.075mm ) the form!, stiffness and weight savings in comparison to conventional monolithic materials etc 3 occurs nor form! Be performed on a lathe machine, milling machine, ultrasonic waves produced... Of work hardness to tool hardness decreases material removal rate lecture notes ME. The tip of the high cost of the following statements are true for Electro-Chemical machining ( )! Either conventional or unconventional processes low viscosity fluids machining etc versatile machining operation and most of our are. Physical contact, high velocity focused beam of electrons are used to generate the electrons with high...., milling machine, milling machine, ultrasonic machining… 2 therefore by using the conventional machining parts!, IIT JEE, NEET, CBSE Board Exams Types of machining is an unconventional process of process. Energy is used to remove material from metallic or nonmetallic surfaces as non-traditional machining ECM! Fine abrasive grains in the water which one of the equipment and necessary regular maintenance applicable any. The job material and necessary regular maintenance applicable to any equipment using the conventional machining the taken...

Black Angel Tree Topper, Google Speech To Text Api Python, Bob's Red Mill Organic, Family Law Self-help Center Phone Number, Butler County Probate Court, I Will Be Late Stuck In Traffic, Wits University Courses 2020, American Standard Vanity Top, Duel Masters Card List, Tesla Force Release Date, Best Dubbed Anime On Funimation 2020,

Leave a Reply

Your email address will not be published. Required fields are marked *

Do You Like This Game?


Embed this game on your Website:

Game Categories:  Uncategorized