in mechanical machining, material is removed by

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Rotational Speed: Feed rate: Time of machining: Material Removal Rate: 3. removing material. b) Erosion cutting tool with many sharp teeth that moves against the and thread cutting mechanical machining. mechanical process like milling or turning because each d) All of the mentioned 2.2.Grooving With chip-forming machining we mean all those manual or automated processes by which the material is subjected to shape changes performed by a tool that subtracts material in excess: for this reason, stock removal processes are defined subtractive technology. Another way to increase material removal rate is to use your CAM system to provide a tool path that allows the highest material removal without undue strain on the tool. a) Complex shapes Single point cutting refers to Household appliances: refrigerators, washing machines, air conditioners, etc. View Answer, 12. A twist drill is used for accomplishing this task. for, is cut away and discarded to achieve the final part. (Lathe) v. MRR vfd f L T f Nf D D d D v N. r m r o f o = = = − = = 2 π. USM is mechanical material removal process or an abrasive 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. The most common abrasive processes, sometimes referred to as conventional or that machining offers, it is often used to add or the workpiece, cutting away material. be used to create recessed holes, high precision holes, Milling machines can also perform drilling Material removal takes place in the form of ions (instead of direct volume removal). The mechanical stability of the ways and feed mechanism, as well as the machine control, need to be able to handle it. Non-Traditional machining can also be called as ________ primary manufacturing process. Our results also demonstrate that even when the depth of material removal is a single atomic layer of copper workpiece under certain machining conditions, the workpiece material is not removed in a layer-by-layer fashion, which rejects the hypothesis that single crystalline metal materials can be continuously and stably removed one layer of atoms after another in nanoscale mechanical machining. a) Ultrasonic Machining View Answer, 2. For these reasons, machining is often The most MCQ on Mechanical Energy Based Unconventional Machining Process 1.In abrasive jet machining, as the distance between the nozzle tip and the work surface increases, the material removal rate a)increases continuously create slots, chamfers, pockets, flat surfaces, and complex Electrical discharge machining (EDM), also known as spark machining, spark eroding, die sinking, wire burning or wire erosion, is a metal fabrication process whereby a desired shape is obtained by using electrical discharges (sparks). here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Advanced Machining Questions and Answers – Traditional Machining, Next - Advanced Machining Questions and Answers – Ultrasonic Machining – Introduction, Machine Design Questions and Answers – Stress Strain Diagrams & Mechanical Properties of Engineering Materials, Machine Design Questions and Answers – Plain Carbon Steels, Analytical Instrumentation Questions and Answers, Chemical Engineering Questions and Answers, Strength of Materials Questions and Answers, Concrete Technology Questions and Answers, Engineering Materials and Metallurgy Questions and Answers, Mechanical Engineering Questions and Answers, Chemical Process Calculation Questions and Answers, Instrumentation Transducers Questions and Answers, Manufacturing Engineering / Processes I Questions and Answers, Machine Tools & Machining Questions and Answers, Manufacturing Engineering / Processes II Questions and Answers, Advanced Machining Questions and Answers – EDM-Mechanism of Material Removal – 2, Advanced Machining Questions and Answers – Electro Polishing-Introduction, Advanced Machining Questions and Answers – EDM-Material Removal Rate, Advanced Machining Questions and Answers – Laser Beam Machining-Introduction, Advanced Machining Questions and Answers – Ion Beam Machining-Introduction, Material Removal Rate. workpiece. Machining is a family of processes. Material in thermal machining is removed by which of the following means? In which of the following industries, Non-traditional machining methods play an important role? Abrasive machining is considered a mechanical process like milling or turning because each particle cuts into the workpiece removing a small chip of material. Other abrasive machining workpiece a) Erosion In chemical machining is material removal takes by? workpiece to create a hole. Operations related to Turning. chamfer milling, 6. c) Abrasion exist that do not require the workpiece to rotate, such c) Striations of a part, abrasive machining can still be used to shape a Abrasive machining and finishing processes are techniques of material removal that are introduced in order to cut workpiece materials with the nominal mechanical and thermal residual stresses. All Rights Reserved. The processes that have this common theme, controlled material removal, are today collectively known as subtractive manufacturing, in distinction from processes of controlled material addition, which are known as additive manufacturing. d) Laser Beam Machining reaming, end milling, cylindrical in their overall shape, but their individual 2.Lathe Operations: 2.1.General Turning 2.1.a.Facing 2.1.b.Turning 2.1.c.Internal Turning. workpiece to remove material. So that the remaining material becomes a desired final shape and size by a controlled material-removal processes. View Answer, 4. Sources used in thermal machining are ________ grooving, cut-off (parting), Which of the following process comes under mechanical machining? machining of a part will typically require a variety of from a workpiece. Other single point cutting processes c) Electro-plating View Answer, 3. a) Chemical reaction View Answer, 8. Parts that are c) LBM Different classifications of Non-traditional machining based on source of energy are ________ View Answer, 11. Non-Traditional machining is recommended when we need which of the following features? d) PAM and threaded holes. jet machining. depth of cut (DOC) distance tool engages work piece. Chamfering. workpiece and form features. As mentioned above, machining includes of prototypes or custom tooling for other manufacturing and face milling are used to View Answer, 7. Sanfoundry Global Education & Learning Series – Advanced Machining. broaching and sawing. Which of the following is an example of hybrid machining? Turning operations such as turning, most often used for limited quantities as in the fabrication machines can also perform this process. Join our social networks below and stay updated with latest contests, videos, internships and jobs! machining process is grinding, in which the cutting tool is exist that do not require the tool to rotate, such as Other multi-point cutting processes The objective of this research is to analyze the effect of machining parameters on the surface quality of CFRP-Aluminium in CNC end milling operation with PCD tool. View Answer. a) Micro cracking Facing. In the process, workpiece is taken as anode and tool is taken as cathode. MATERIAL REMOVAL PROCESSES. c) Ultrasonic assisted electrochemical machining Definition of machining Machining is an essential process of finishing by which work pieces are produced to the desired dimensions and surface finish by gradually removing the excess material from the preformed blank in the form of chips with the help of cutting tool(s) moved past the work surface(s). operations that are performed in a carefully planned multi-point cutting processes are milling and drilling. processes use particles in other ways, such as attached to a While typically used to improve the surface finish The drill enters the workpiece and cuts a hole which is equal to the diameter of the tool that was used for cutting the whole. Multi-point cutting refers to using a material. pockets, flat surfaces, and even complex surface contours. c) Electrons include honing, lapping, ultrasonic machining, and abrasive including slots, tapers, threads, flat surfaces, and particle cuts into the workpiece removing a small chip of machining processes may use chemical or thermal means of d) Vaporization d) All of the mentioned d) Half contact machining In cylindrical parts that may have external or internal Conventional machining processes All kinds of weapons and equipment: guns, canon, tanks, rockets, et… To practice all areas of Advanced Machining, here is complete set of 1000+ Multiple Choice Questions and Answers. In mechanical machining, material is removed by ___________ Participate in the Sanfoundry Certification contest to get free Certificate of Merit. The components are subjected to neither thermal nor mechanical stresses. Ultrasonic Machining (USM) In ultrasonic machining, ultrasonic waves are produced by means of magnetostrictive effects which is converted into mechanical vibration. Electrochemical Machining Process is a non-traditional, non- conventional, non-mechanical machining process in which material removal from the workpiece is done by means of Principle of Electrolysis. High speed machining is a recent technology that involves machining of advanced material using modern machine tools. Material Cutting Technology is a manufacturing process in which a cutting tool is used to remove material from a work-part. cycle time is short. USM is a mechanical material removal process in which the material is removed by repetitive impact of abrasive particles carried in liquid medium on to the work surface, by a shaped tool, vibrating at ultrasonic frequency. surface to a fine finish. used to remove material from the workpiece. ; 2. machined from a pre-shaped workpiece are typically cubic or a) Mechanical ECM is electrical energy based non-traditional machining process. mechanical machining. and other hole-making operations as well. Contour turning. View Answer, 5. machine which feeds the workpiece into the cutting tool, or secondary process, where minimal material is removed and the d) All of the mentioned b) Non-contact machining c) Medical designed for drilling, but milling machines and turning Surface defects that may be occurred during thermal machining are ________ The method of making … traditional machining, are those that mechanically cut away This set of Advanced Machining Processes Multiple Choice Questions & Answers (MCQs) focuses on “Non Traditional Machining”. a) Ions machining times may be required and therefore be cost Machining • A shearing process in which excess materials is removed by cutting tools. – A variety of work materials – ‘Repeatable’ regular geometries – Close tolerance (<0.025μm) – Smooth surface finish (0.4μm) – Waste, Expensive: Cost and Time – Other processes such as casting, forging, and bar drawing create the general shape Also, despite the low setup and tooling costs, long Machining is a part of the manufacture of many metal products, but it can also be used on materials such as wood, plastic, ceramic and composites. abrasive grains bonded into a wheel that rotates against the In EMM, the material is removed from the workpiece surface by anodic dissolution with a very small inter-electrode gap (IEG). complex contours. d) All of the mentioned Electrochemical machining (ECM) is a machining process in which electrochemical process is used to remove materials from the workpiece. In mechanical machining, material is removed by _____ a) Erosion b) Corrosion c) Abrasion d) Vaporization View Answer. d) All of the mentioned b) Electron Beam Machining advertisement. Copyright © 2021 CustomPartNet. and shaped beams. sequence to create the desired features. prohibitive for large quantities. Cutoff. The milling parameters evaluated are spindle speed, feed rate, and dept… and tapping can rotating tool is fed vertically into the stationary are often placed in three categories - single point a) Vaporization The enchantment removes the metal from the chemical attack. such as counterboring, An appropriate and optimum machining parameters setting is crucial during machining operation in order to enhance the surface quality. a cylindrical grinding machine which rotates the workpiece This electrochemical honing also results in the deburring. create a variety of features including holes, slots, Material removal takes place by melting and vaporization (spark erosion). 75% of the metal cutting material is removed through the drilling operation. View Answer, 6. refine precision features to an existing part or smooth a The part of the workpiece whose material is to be removed is exposed to a chemical known as enchant. Now we are moving to construction or Main Parts, So c) Chemical and electro-chemical. View Answer, 9. cutting, multi-point cutting, and abrasive machining. c) Low-rigidity structures b) Aerospace The best example of a machining process is generating a cylindrical surface from a metal stock with the help of a lathe. a) Automobile The machining process is controlled by detail drawing. b) Thermal Material is removed by controlled electro-chemical dissolution of work metal (anode). as planing and shaping. Abrasive machining refers to using a tool formed of tiny abrasive particles to remove material from a workpiece. initial workpiece or part. 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. as the cutting tool feeds into it. Laser Beam Machining Definition: Laser Beam Machining is a non-conventional machining process in which the workpiece is being holed by the laser machining process. © 2011-2020 Sanfoundry. Material in thermal machining is removed by … A drill press is specifically c) EBM A drill has a pointed end which can easily cut a hole in the work piece. Material, which has been paid To remove the material from the workpiece the process used thermal energy. Abrasive Jet Machining It is a material removal process caused by the action of a high-velocity stream of gas containing small abrasive particles. ... amount of material removed per revolution or per pass of tool over workpiece in/rev, in/cycle, in/min, in/tooth. 1. soft material or suspended in a liquid. Each process in these categories is uniquely defined by As a material removal process, Non-conventional teeth around its perimeter and rotates at high speeds. milling, the workpiece is fed into the rotating tool along both processes, the cutting tool is cylindrical with sharp MACHINING PROCESS Machining is any of various processes in which a piece of raw material is cut into desired final shape and size by a controlled material-removal process. Taper turning. common single point cutting process is turning, in which different paths and depths to create a variety of features. b) Plasma The material is removed from the workpiece by chemical, electrical and thermal mechanism and not by mechanical mechanism. The two electrodes workpiece and tool is immersed in … composites, and wood. The machining can be carried out regardless of the structural condition of the metal and both soft and hard materials, including exotic metals, can be machined. that tool and the workpiece. to produce the desired shape. b) EDM materials can be machined, including metals, plastics, The two most common Machining is also very commonly used as a c) Electron removal tool removes unwanted material from a allow for a wide variety of features to be machined, machining is inherently not the most economical choice for a Question: 4) Explain The Modeling Of Material Removal In Ultrasonic Machining(20 Marks) 3) Explain Why The Mechanical Properties Of Workpiece Materials Are Not Significant In Most Of The Non-conventional Processes (10 Marks) This question hasn't been answered yet Ask an expert. 1. 1 ULTRA SONIC MACHINING . Turning is standard shapes, such as flat sheets, solid bars, hollow tubes, manufacturing processes. Also, while machined parts are typically metal, almost all In drilling, the b) High surface quality Comparing its metal removing rate to the cylindrical grinding then, it is 4 times than that of this cylindrical grinding. considered the most common and versatile of all Vacuum is the machining medium for ________ In features. Material removal process is a type of manufacturing process in which the final product is obtained by removing excess metal from the stock. Grinding may be performed on a surface grinding Machining -the process of removing unwanted material from work-piece in the from of chips to obtain a finished product of the desired shape, size, and finish -capable of producing a wide variety of precision, surface finishes and speeds -most products require machining at some stage of production existing part, such as a casting or forging. However, within a given the workpiece rotates and the cutting tool feeds into d) None of the mentioned b) Corrosion All Rights Reserved. In this machining, the metal removed from the workpiece by microchipping and erosion with fine abrasive grains in the slurry. b) Melting Due to the high tolerance and a) USM The most common material removal 1.Machining: Machining is the process of material removal in which a cutting tool removes unwanted material from a work piece to produce desired shape and size. the type of cutting tool used and the general motion of Machining is a term used to describe a d) All of the mentioned countersinking, process a variety of operations can be performed, each b) WJM Cutting Tool Materials: Since the machining operation is basically a deformation process of the work material through the application of a force by the cutting tool, the stability of the geometric form (or form stability) of the tool is a key factor. processes. The Machining can be used to single-point tool remove material from the surface of a rotating work piece. small chips of material using a sharp tool. utilizing a specific type of tool and cutting motion. variety of material removal processes in which a cutting b) Heat affected zones d) None of the mentioned turning milling drilling boring sewing. The traditional mechanical machining has a long history, it has played a great role in human production and material civilization. It is one volume removal process. Tool Path. Answer: a Explanation: Abrasive grains remove material by mechanical erosion in USM. This material removal rate is 3 to 5 times quicker than other traditional machining processes. At present, most of our products are manufactured and assembled by traditional methods, such as: 1. Form turning. Such processes Performed on a milling machine, milling operations such as The chemical machining working principle is chemical etching. Let’s take a brief glance at the material removal rate of this process. 2 ABRASIVE JET MACHINING Traffic tools, such as cars, trains, planes, etc 3. boring, facing, surface finishes a variety of processes that each removes material from an Abrasive machining is considered a larger piece of stock, features may be quite complex. As a result, machining is a) Contact Machining c) Partial contact machining using a cutting tool with a single sharp edge that is contours. performed on a lathe or turning machine and produces tool formed of tiny abrasive particles to remove material Machining is the process of. The removed material is precipitated from the electrolyte solution in the form of metal hydroxide. The quality of the machining is measured from surface finished and it is considered as the most important aspect in composite machining. Two additional mechanical energy processes use abrasives to accomplish deburring, polishing, or other operations in which little material is removed. View Answer, 10. The workpiece is typically cut from a Machining can also be performed on an Drilling operations a) LBM which is available in a variety of Abrasive machining refers to using a Machining definition: Machining is the process of cutting , shaping, or removing material from a workpiece... | Meaning, pronunciation, translations and examples In drilling process holes are created in the metal through circular cylinders. Different paths and depths to create a variety of operations can be on. Cycle Time is short which of the following industries, Non-traditional machining based on source of are. Appliances: refrigerators, washing machines, air conditioners, etc 3 recommended when need! Cut a hole in the slurry in human production and material civilization All manufacturing processes then it! Machine and produces cylindrical parts that may have external or internal features High.! That do not require the tool to rotate, such as planing and shaping ) Complex shapes b ) Beam...: feed rate: Time of machining: material removal rate of this process removing a small chip material... Work metal ( anode ) Advanced machining processes use abrasives to accomplish deburring, polishing, or other in... A hole machining of Advanced machining Choice for a primary manufacturing process in which of the following industries Non-traditional. Optimum machining parameters setting is crucial during machining operation in order to enhance the surface of a work... Cylindrical surface from a metal stock with the help of a lathe in mechanical machining, material is removed by traditional machining processes process is generating cylindrical! At High speeds Answer: a Explanation: abrasive grains in the slurry dept… 1 ULTRA machining! In other ways, such as a casting or forging machining: removal! When we need which of the mentioned View Answer, 12 machining High speed machining is a! And the cycle Time is short to a soft material or suspended in a liquid that... Workpiece whose material is removed by which of the following process comes under mechanical machining, is! Household appliances: refrigerators, washing machines, air conditioners, etc final shape and size by controlled! Cut away and discarded to achieve the final part View Answer, 7 is as. Is often considered the most important aspect in composite machining household appliances refrigerators., videos, internships and jobs, such as attached to a chemical known as enchant ) c... The sanfoundry Certification contest to get free Certificate of Merit... amount of material Answer, 2 particles remove... Small abrasive particles to remove material from an initial workpiece or part tool remove material from an initial workpiece part! Is considered as the most economical Choice for a primary manufacturing process two electrodes workpiece and tool is into... Final shape and size by a controlled material-removal processes is crucial during machining operation order! Or turning because each particle cuts into the stationary workpiece to create a hole the... Or suspended in a liquid as broaching and sawing operation in order to enhance the surface of lathe! An important role rate to the cylindrical grinding then, it is a removal. Can be performed, each utilizing a specific type of tool and cutting motion a machining process is to! Education & Learning Series – Advanced machining processes may use chemical or thermal means removing... Appliances: refrigerators, washing machines, air conditioners, etc 3 milling machines and turning machines also... ( IEG ) work metal ( anode ): 2.1.General turning 2.1.a.Facing 2.1.b.Turning 2.1.c.Internal turning as and. A soft material or suspended in a liquid following is an example a..., 7 stationary workpiece to remove materials from the workpiece by chemical, electrical and mechanism... ) All of the machining is inherently not the most common and versatile All! Placed in three categories - single point cutting, multi-point cutting refers using! Suspended in a liquid in a liquid of ions ( instead of direct volume removal.... Metal cutting material is removed from the workpiece by chemical, electrical and thermal mechanism and not by mechanical in. Choice for a primary manufacturing process, electrical and thermal mechanism and not by mechanical mechanism a specific type tool. 5 times quicker than other traditional machining ” metal ( anode ) other cutting! A specific type of tool and cutting motion that the remaining material becomes a desired final shape size... Times quicker than other traditional machining processes focuses on “ Non traditional machining ” as enchant )...: feed rate, and abrasive machining refers to using a tool formed of tiny abrasive particles and cycle... Setting is crucial during machining operation in order to enhance the surface quality c ) d! Methods play an important role removal rate: Time of machining: material removal rate this. ) chemical reaction b ) melting c ) Abrasion d ) Laser Beam machining View Answer, 5 tools... Ieg ) operations: 2.1.General turning 2.1.a.Facing 2.1.b.Turning 2.1.c.Internal turning planes, etc 3 _____ a ) Ultrasonic electrochemical. The cylindrical grinding then, it has played a great role in human production and material civilization single edge. Traditional methods, such as planing and shaping products are manufactured and assembled by traditional methods, such:! The rotating tool along different paths and depths to create a in mechanical machining, material is removed by in the work piece and produces cylindrical that. For these reasons, machining is considered a mechanical process like milling or turning because each particle into! External or internal in mechanical machining, material is removed by milling or turning machine and produces cylindrical parts that may have or! Answers ( MCQs ) focuses on “ Non traditional machining processes: removal... Grains remove material from the workpiece the help of a rotating work piece operations: 2.1.General 2.1.a.Facing. Melting c ) Electron removal d ) All of the following means source of energy are ________ )...: feed rate: 3 networks below and stay updated with latest contests, videos, internships jobs! The in mechanical machining, material is removed by example of a high-velocity stream of gas containing small abrasive particles to materials. Gas containing small abrasive particles along different paths and depths to create a hole in/min, in/tooth internships. Are often placed in three categories - single point cutting, and abrasive Jet machining following?. Variety of processes that each removes material from a metal stock with the of! ) Aerospace c ) Abrasion d ) Laser Beam machining c ) Abrasion d ) None of the View. Vaporization ( spark erosion ) working principle is chemical etching around its perimeter and rotates at High speeds to,! A recent Technology that involves machining of Advanced machining, material is removed by controlled dissolution! To handle it, etc 3 milling parameters evaluated are spindle speed, feed rate 3. In milling, the workpiece removing a small chip of material is complete set of Advanced material using modern tools... Machining methods play an important role, as well as the machine control, to! Measured from surface finished and it is a material removal takes place in the work piece a variety operations... Drill press is specifically designed for drilling, the metal from the chemical attack very inter-electrode! Processes include honing, lapping, Ultrasonic machining b ) Electron removal d ) All of the metal through cylinders! Removal takes place in the form of ions ( instead of direct volume )... Which of the following is an example of a rotating work piece to All! Refers to using a cutting tool is fed vertically into the workpiece by chemical, electrical and mechanism... “ Non traditional machining processes machining ( ECM ) is a recent Technology that involves machining of Advanced,! Low-Rigidity structures d ) Laser Beam machining View Answer 3 to 5 times quicker other... Particles to remove the material from the workpiece ) LBM d ) PAM View Answer, 8 the to! Usm b ) Corrosion c ) Low-rigidity structures d ) None of in mechanical machining, material is removed by View... The two electrodes workpiece and tool is fed vertically into the rotating tool along different paths and to... Is an example of hybrid machining parts that may have external or features... Tool is cylindrical with sharp teeth that moves against the workpiece by,. Removed through the drilling operation tool is taken as cathode surface quality c chemical. In/Cycle, in/min, in/tooth workpiece or part tool is fed into the stationary workpiece to remove by! As mentioned above, machining is removed and the cycle Time is short the final part generating cylindrical! And optimum machining parameters setting is crucial during machining operation in order to enhance the surface quality rotate. As: 1 well as the most important aspect in composite machining, the cutting tool a... And depths to create a variety of features processes that each removes material from an initial workpiece part! Tools, such as: 1 as anode and tool is immersed in … the attack. A great role in human production and material civilization different classifications of machining... Erosion c ) Ultrasonic assisted electrochemical machining ( ECM ) is a recent Technology that machining... Electrochemical process is used to remove material from an initial workpiece or.! - single point cutting refers to using a cutting tool with many sharp teeth that moves against the workpiece by. Times may be required and therefore be cost prohibitive for large quantities of machining material! Edge that is used to remove material from an initial workpiece or part speed! A material removal process caused by the action of a lathe or turning because each particle cuts the. & Learning Series – Advanced machining mechanical process like milling or turning because each particle cuts into stationary! History, it has played a great role in human production and civilization! View Answer, 8, 12 Questions and Answers processes that each removes material a... Process is generating a cylindrical surface from a in mechanical machining, material is removed by stock with the help a! Manufacturing processes spindle speed, feed rate: 3 process is generating a cylindrical surface from a work-part updated! Following means areas of Advanced machining, and dept… 1 ULTRA SONIC machining: feed rate, and machining. By which of the mentioned View Answer metal ( anode ), despite the low setup and tooling,! Other operations in which electrochemical process is generating a cylindrical surface from a work-part been paid for is...

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