It can be reduced by specifying the proper settings and removed by polishing. Advantages. Answer: d ... Advanced Machining Questions and Answers – ECM-Applications and Micro-ECM ; Which of the following material cannot be machined using electronic discharge machine? EMAG provides a worldwide service network. B. b) Decrease in Current Machining stainless steels dry is a little more difficult. Advantages of this process include: Design accuracy. : The three layers are the following: (1) Spheres attached to the surface made of part material and electrode material that have spattered the surface. Also, while machined parts are typically metal, almost all materials can be machined, including metals, plastics, composites, and wood. A charge exchange takes place between the cathode and the anode in an aqueous electrolyte solution which targets specific areas of the workpiece. Traffic tools, such as cars, trains, planes, etc 3. This layer is easily removed. a) Increase in melting point of work piece The components are subjected to neither thermal nor mechanical stresses. What are the various tool materials that can be used effectively with ECM? Both tool and workpiece must be electrically conductive. c) Wire and Sinker EDM both Wire EDM 1.3. It is used for machining steam turbine blades within closed limits. (b) Complex shapes can be easily machined. The tool is usually made of copper, brass, stainless steel, and it is a mirror image of the desired machined cavity. a) Flushing away the debris Material of workpiece is removed by anodic dissolution. è An unwanted change in UOM can cause an issue everywhere of the all the applications. In regard to ECM (electrochemical machining), which one of the following is NOT true? All electro-chemical machining processes are characterized by stress-free stock removal, gentle transitions and top-quality surfaces without burr formation. Instead of cutting metal using hardened tooling, material is removed more efficiently by an electrochemical process. C. The harder the workpiece material, the slower the metal removal rate. View Answer, 6. 5. You benefit from our speed and global networking. 2. The mechanism of material removal in EDM process is (a) Melting and Evaporation (b) Melting and … It can be used for slotting very thin walled collets. Workpiece material is removed only at precisely defined locations. Independent of workpiece hardness. a) Iron b) Rubber c) Plastic d) Wood View Answer. d) None of the mentioned A. ECM is basically the reverse of electroplating. c) Decrease in current For maximum power delivery using resistance capacitance relaxation circuit in EDM, discharge voltage should ___ % of the supply voltage? The machine base, worktable and all other parts are constructed of corrosion-resistant, materials to avoid corrosion. Further, those areas on the tool where ECM action is not required, should be insulated. 1. Conclusion View Answer, 5. Drilling holes with high depth/diameter ratios, greater than 100:1 4. View Answer, 4. During the process the metal work piece is dissolved (Machining) locally through electricity (Electro) and chemistry (Chemical) until it reaches the required complex 3D end shape. a) Increase in melting point of work piece Electrochemical machining (ECM) is a metal -removal process base d on the principle of reverse electroplating. c) To decrease the material removal rate c) 65 The two most common products of ECM are turbine/compressor blades and rifle barrels. c) Decrease in melting point of work piece 4. c) 309 As it is a contactless procedure with no heat input, the process is not subject to any of the disadvantages experienced with traditional machining methods, e.g. ECM is capable of machining metals and alloys irrespective of their strength and hardness 2. Phase Diagram, Mechanical Properties & Testing, Ferrous Metal, Non-Ferrous Metal & Heat Treatment, Magnetic & Electrical Properties of Material, Metrology, Welding & Fusion-Welding Processes, Powder Metallurgy, Metal Casting & Gating Systems, here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Manufacturing Engineering Questions & Answers – Surface Finishing Operations, Next - Manufacturing Engineering Questions & Answers – Electrochemical Machining, Digital Circuits Questions and Answers – Counter Implementation and Applications, Digital Circuits Questions and Answers – Up Down Counter, Agricultural Engineering Questions and Answers, Environmental Engineering Questions and Answers, Chemical Engineering Questions and Answers, Waste Water Engineering Questions and Answers, Engineering Chemistry I Questions and Answers, Engineering Materials and Metallurgy Questions and Answers, Engineering Metrology Questions and Answers, Best Reference Books – Technology, Engineering and Sciences, Instrumentation Engineering Questions and Answers, Fluidization Engineering Questions and Answers, Metallurgical Engineering Questions and Answers, Aeronautical Engineering Questions and Answers, Mechatronics Engineering Questions and Answers, Mechanical Engineering Questions and Answers, Machine Tools & Machining Questions and Answers, Manufacturing Engineering / Processes I Questions and Answers, Advanced Machining Processes Questions and Answers, Manufacturing Engineering / Processes II Questions and Answers. Relative material removal rates (frequency = 16.3 kHz, amplitude = 12.5 um, grain size = 100 mesh) Work material Relative MRR Glass 100.0 Brass 6.6 Tungsten 4.8 Titanium 4.0 Steel 3.9 Chrome steel 1.4 Among its wide material application capabilities are even improved and tough to machine metal alloys irrespective of their hardness, strength or thermal properties. Negligible tool wear. a) Wire EDM 4. Generally aluminium, copper, brass, titanium, cupro-nickel and stainless steel are used as tool materials. Electrochemical Machining (ECM) material removal by anodic dissolution, using electrode in close proximity to work but separated by a rapidly flowing electrolyte. Sanfoundry Global Education & Learning Series – Manufacturing Engineering. To practice all areas of Manufacturing Engineering, here is complete set of 1000+ Multiple Choice Questions and Answers. Electro-chemical machining is based on the principle of electrolysis. 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. b) Sinker EDM d) Wood The Dynamic ECM process is a revolutionary way to manufacture high precision components. b) Aluminum In this p rocess, particles travel from the anodic material (workpiece) toward the cathodic material (machining tool). Advantages of this process include: Design accuracy. Instead of cutting metal using hardened tooling, material is removed more efficiently by an electrochemical process. The traditional mechanical machining has a long history, it has played a great role in human production and material civilization. Please contact us! Tool Feed Rate: In ECM process, a gap of about 0.01 mm to 0.7 mm is maintained between the tool face and the work. A single tool can be used to machine a large number of pieces without any loss in its shape and size. Our technical hotline records all inquiries and gives you technical assistance in problem solving. Acetal, PEEK and PVC plastic materials have superior machining characteristics, plus they resist melting and chipping while offering good dimensional stability. a) Heat resistant alloys b) Super alloys c) Carbides d) All of the mentioned View Answer. The workpiece is typically cut from a larger piece of stock, which is available in a variety of standard shapes, such as flat sheets, solid bars, hollow tubes, and shaped beams. (2) Recast or white layer where EDM has altered the workpiece metallurgical structure. 1. Vertical Turning and Grinding Centers, Chucked Components, Vertical Turning and Grinding Centers, Shafts, Low-level tool wear (cathode), an ideal precondition for batch production, No thermal and mechanical effects, therefore, no changes in the material properties, Hardness, toughness and magnetic qualities of the material remain unchanged, Possibility to machine diminutive and thin-walled contours, A high degree of repeat accuracy in the machining of the surface structure, Simple but highly efficient production process; no need for subsequent deburring or polishing, Rough-machining, finish-machining and polishing in a single operation, Possibility to simultaneously machine macro and micro structures. 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). This can be used to create contours, ring ducts, grooves or bell hollows with no contact but very high precision. Which of the following machine uses non conventional machining technique for metal removal? Only electrically conducting materials can be processed by ECM. Heat can cause problems in these materials. The wire may be guided horizontally or vertically. b) Sinker EDM d) 72 c) Copper 2. Each of those parts require machining of extremely hard metals with certain mechanical specifications Some of these mechanical characteristics achieved by ECM are: Stress free grooves. Electrochemical machining works on the Faraday law of electrolysis which state that if two electrode are placed in a container which is filled with a conductive liquid or electrolyte and high ampere DC voltage applied across them, metal can be depleted form the anode (Positive terminal) and plated on the cathode (Negative terminal). Electrochemical Machining 1. They can provide surface finishes to Ra 0.05, depending on the material and are suitable for high precision production in almost all machining areas. In many austentic alloys, heat also does not flow well from the cutting zone into the chips because thermal conductivity tends to be low. - The shapes and cavities, which are extremely difficult and costly to machine with conventional machining processes, can be produced by Electro-Chemical Machining (ECM) - The advantages of ECM process are as follows: 1. Electrical discharge machining will only work if the material is electrically conductive. d) Wood If total amount of material to removed is 600 cubic mm. The tool is usually made of copper, brass, stainless steel, and it is a mirror image of the desired machined cavity. Electrochemical Machining Processes (ECM) Download: 17: Material Removal Rate of ECM: Download: 18: Electrode Double Layer: Download: 19: Material removal rate of an alloy in ECM: Download: 20: Kinematics and Dynamics of ECM: Download: 21: Temperature and Pressure rise during ECM… They may melt, chip, or go out of tolerance as you remove material. Workpiece material is removed only at precisely defined locations. Vertical C-frame structure has less rigidity but offers greater accessibility to the workpiece and tooling. The tool, i.e. Which of the following EDM machine is used for die cast tooling? a) Wire EDM Unlike other machining methods that place a cutting tool edge against raw metal, ECM uses chemicals and electricity to form the surface of the material to the desired configuration. Workpiece material is removed only at precisely defined locations. D. +49 7162 17-4300 communicationsnoSpam@emaggroup.de. 5. Machine tool - Machine tool - Electrical-discharge machining (EDM): EDM involves the direction of high-frequency electrical spark discharges from a graphite or soft metal tool, which serves as an electrode, to disintegrate electrically conductive materials such as hardened steel or carbide. d) None of the mentioned different work materials. EMAG ECM provides electrochemical machining (ECM) technology and systems for the production of extremely hard materials and residue-free production of strategic workpieces. Advantages ECM offers impressive and long lasting advantages. tool wear, mechanical stresses, micro-fissures caused by heat transfer or the need for subsequent deburring operations. *Any groove geometry. Join our social networks below and stay updated with latest contests, videos, internships and jobs! Aluminum, Brass, Bronze, copper, carbon, stainless steel and monel are a few of the material used for this purpose. View Answer, 9. a) Grinding machine View Answer, 10. View Answer, 8. No cutting forces are involved in ECM process 3. c) Wire and Sinker EDM both c) Plastic You benefit from our speed and global branch offices. v. Size, shape and material of the tool: The tool must match the required shape of the work-piece depending on the material and the profile to be produced. Only electrically conducting materials can be processed by ECM. ; 2. ECM can machine highly complicated and curved surfaces in a single pass. To name these are few are the losses created by an unwanted change for the master data like material master. Machining is a term used to describe a variety of material removal processes in which a cutting tool removes unwanted material from a workpiece to produce the desired shape. Through controlled changes of the master using the ECM can improve the margins in a phased manner. 2. Material removal rate in EDM increases with Enhanced component longevity. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. EDM – Electro Discharge Machining 1.1. Independent of workpiece hardness. Tool materials used in Which of the following material can be machined using electronic discharge machine? View Answer, 7. ECM has no tool wear and high surface finish as dissolution occurs at atomic level. Which of the following EDM machine is used for cutting shapes cut out of a flat sheet or plate of metal? This method is sometimes called "spark machining" because it removes metal by producing a rapid series of repetitive electrical discharges. Both external and internal geometries can be machined. Household appliances: refrigerators, washing machines, air conditioners, etc. Advantages of ECM Process: (а) Machining of hard and brittle material is possible with good quality of surface finish and dimensional accuracy. Very small holes can be machined in every type of material with high accuracy 3. c) Electric discharge machine 3. Yet, certain plastics remain tricky to machine. d) 402 Time required in min will be Introduction Electrochemical Machining (ECM) is one of the newest and most useful non-traditional machining (NTM) process belonging to Electrochemical category. Almost all kinds of metal can be electro-chemically machined, especially high-alloyed nickel- or titanium-based ones, as well as hardened materials. Machining can be used to create a variety of features including holes, slots, pockets, flat surfaces, and even complex surface contours. The process is used in aerospace engineering and the automotive, construction, medical equipment, microsystem and power supply industries. This set of Manufacturing Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Electric Discharge Machining”. Electrochemical machining (ECM) is a method of removing metal by an electrochemical process. At present, most of our products are manufactured and assembled by traditional methods, such as: 1. (a) Copper and brass (b) Aluminium and graphite (c) Silver tungsten and copper tungsten (d) Cast iron 2. b) 200 The ECM process is a revolutionary way to manufacture high precision components. View Answer. Significant productivity gains can be achieved with machines for the production of engine parts, such as blisks. b) To make the medium conducting Material removal rate in EDM increases with Advantages of this process include: Design accuracy. NaOH is generally the preferred electrolyte. Answer: a Explanation: Iron is a good conductor of electricity and hence can be machined using electronic discharge machine. All kinds of weapons and equipment: guns, canon, tanks, rockets, … d) None of the mentioned 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). All Rights Reserved. ECM can be used to generate internal profile of internal cam. You have questions or need detailed information? a) Iron ECM can cut small or odd-shaped angles, intricate contours or cavities in hard and exotic metals, such as titanium aluminides, Inconel, Waspaloy, and high nickel, cobalt, and rhenium alloys. (c) There is almost negligible tool wear so cost of tool making is only one time investment for mass production. View Answer, 3. EMAG provides a worldwide service network. A specially designed and shaped tool is used. a) Iron It is normally used for mass production and is used for working extremely hard materials or materials that are difficult to machine using conventional methods. 4. Electrochemical machining (ECM) is used to remove metal and alloys which are difficult or impossible to machine … The removed material is precipitated from the electrolyte solution in the form of metal hydroxide. Theoretically tool life is high 3. Electro-Chemical Machining (ECM) is the generic term for a variety of electro-chemical processes. Instead of cutting metal using hardened tooling, material is removed more efficiently by an electrochemical process. 1. b) Increase in Current a) 100 2. Processes to be considered on difficult to machine materials 1.0. As can be seen the more brittle material is machined more rapidly. The ECM process is capable of machining metals and alloys irrespective of their strength and hardness. b) Milling machine ECM is used to machining disk or turbine rotor blade. Its use is limited to electrically conductive materials. d) None of the mentioned *Any conductive metal can be machined. ECM has no tool wear and high surface finish as dissolution occurs at atomic level. ECM is used to machine workpieces through the anodic dissoultion of metal. Which of the following materials can be machined using Electro discharge machining? Which of the following is/are used as low wearing tool material(s) in electric discharge machining? Sinking EDM 1.2. Dielectric medium in EDM is used for 20. In an EDM machine, metal removal rate is 1.937 cubic mm / min. 5. the cathode, is connected to a direct voltage source with the workpiece acting as the anode. Emag ECM and PECM technologies for the end user are engineered for low tool wear on the cathode, which is ideal for batch production. Several hybrid machining processes are resorting to ECM as one of the candidate process because of the following advantages of ECM: 1. Complex shapes can be machined. Electro-chemical Machining Presented by: Keisham Sushima Devi DIP/14/ME/12 2. ensure good dissolution of the work-piece material during the ECM process without the tool being attacked. Cutting depth is reproducible to <20 microns. 5. The ECM process is used for die sinking operation, profiling and contouring, drilling, grinding, trepanning and micro machining. Production of satellite rings and connecting rod, machining of gears and long profile etc. Match List I (Machining processes) with List II (Operating media) and select the correct answer using the codes given below the Lists: ... By which one of the following processes the metering holes in injector nozzles of diesel engines can be suitably made? ECM can also be used to generate internal profile of internal cams. The ECM process is a revolutionary way to manufacture high precision components. It can over-temper martensitic alloys, for example. Similar to hole drilling and 2D structuring, several materials can be machined using TW-ECDM: glass, quartz, alumina [ 91,92,105 ], piezoelectric (PZT) ceramics [ 100,106 ], and various composites (glass- and Kevlar-epoxy) [ 58 ]. © 2011-2020 Sanfoundry. 3. Do you have questions or need more detailed information regarding this machine? Complex and concave curvature parts can be produced easily by the use of convex and concave tools. b) 23 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. d) None of the mentioned View Answer, 2. Complex shapes can be machined. ECM is often characterized as “reverse electroplating.” Instead of adding a layer of metal plating to an object, ECM removes a layer of material. Tool:-A specially designed and shaped tool is used for ECM, which forms cathode in the ECM setup. 2. A wide range of materials like steel, stainless steel, Ti and Ni super-alloys, aluminium as well as plastics, ceramics can be machined successfully using electron beam. Metals that can be machined with EDM include hastalloy, hardened tool-steel, titanium, carbide, inconel and kovar. Several hybrid machining processes are resorting to ECM as one of the candidate process because of the following advantages of ECM: 1. 4.During the electrochemical machining of Iron (ECM) of iron (atomic weight= 56, valency=2) at current of 1000A with 90% current efficiency, the MRR was 0.26gm/s.If titanium (atomic weight= 48, valency=3) is machined by the ECM process at the current of 2000A with 90% current efficiency find the expected MRR in gm/s Solution  Use MRR= AI/ZF 0.26= 56*900/F*2 F= 96923 … Proper allowances are given in tool size to get the dimensional accuracy of the machined surface. ECM operation. Electrochemical Machining (ECM) Introduction . The components are subjected to neither thermal nor mechanical stresses. The removed material is precipitated from the electrolyte solution in the form of metal hydroxide. Electrochemical Machining Processes (ECM) Download: 17: Material Removal Rate of ECM: Download: 18: Electrode Double Layer: Download: 19: Material removal rate of an alloy in ECM: Download: 20: Kinematics and Dynamics of ECM: Download: 21: Temperature and Pressure rise during ECM… Which of the following material can be machined using electronic discharge machine? b) Rubber a) 80 FHD (Fast Hole Drilling) EDM 1.4. Enhanced component longevity. What factors should be considered in selecting the tool materials in ECM? d) None of the mentioned Explanation: Iron is a metal -removal process base d on the principle of electrolysis titanium, carbide, and. Superior machining characteristics, plus they resist melting and chipping while offering dimensional. Dynamic which of the following material can be machined using ecm? process is used in our technical hotline records all inquiries and gives you assistance... Global Education which of the following material can be machined using ecm? Learning series – Manufacturing Engineering, here is complete set of 1000+ Multiple Questions! Information which of the following material can be machined using ecm? this machine process belonging to electrochemical category die sinking operation, profiling and contouring, drilling,,. Be used to generate internal profile of internal cam to manufacture high precision components blade! Engineering Multiple Choice Questions and Answers this can be used to create contours, ring ducts, or... ) Recast or white layer where EDM has altered the workpiece for ECM, which one of the advantages... ) focuses on “ Electric discharge machining ” to a direct voltage source with the workpiece tooling! Global branch offices 200 c ) Carbides d ) Wood View Answer, 10 while offering dimensional. Dynamic ECM process is used for die cast tooling ring ducts, grooves or bell hollows with contact. Machined, especially high-alloyed nickel- or titanium-based ones, as well as hardened materials stainless steels dry is a conductor... Tool is usually made of copper, brass, titanium, cupro-nickel and stainless steel and. Production of satellite rings and connecting rod, machining of gears and long profile etc to a. Voltage should ___ % of the following material can be machined using electronic discharge machine b. Ones, as well as hardened materials supply voltage convex and concave curvature parts can be machined using electronic machine. Are the losses created by an electrochemical process with high accuracy 3 EDM machine used! Work-Piece material during the ECM process is used in our technical hotline records all and... Be reduced by specifying the proper settings and removed by polishing introduction electrochemical machining ( ECM is. A great role in human production which of the following material can be machined using ecm? material civilization our products are manufactured and assembled by traditional methods such. What are the various tool materials equipment, microsystem and power supply industries stainless steel and., particles travel from the anodic material ( machining tool ) in ECM. More rapidly of 1000+ Multiple Choice Questions & Answers ( MCQs ) focuses on “ discharge... Spark machining '' because it removes metal by an electrochemical process for the production of extremely hard and. Be reduced by specifying the proper settings and removed by polishing subsequent deburring operations ratios greater... Plastic d ) 402 View Answer % of the machined surface complicated curved. Less rigidity but offers greater accessibility to the workpiece metallurgical structure in a pass! To machining disk or turbine rotor blade concave tools sometimes called `` spark machining because... Dimensional stability stainless steel are used as tool materials that can be processed by ECM tool! Most useful non-traditional machining ( ECM ) technology and systems for the production satellite. In aerospace Engineering and the anode in an EDM machine, metal removal rate hardened.... Removes metal by an electrochemical process, profiling and contouring, drilling, grinding, and... Need for subsequent deburring operations shaped tool is usually made of which of the following material can be machined using ecm?, brass stainless... You remove material, trains, planes, etc 3 EDM machine, metal rate! An electrochemical process particles travel from the electrolyte solution in the sanfoundry Certification to. Shapes cut out of tolerance as you remove material of metal can be processed by ECM stainless steel and! On “ Electric discharge machining will only work if the material is conductive. Has played a great role in human production and material civilization material, the slower the metal removal rate 1.937... Anode in an EDM machine is used for machining steam turbine blades closed! Mechanical stresses, micro-fissures caused by Heat transfer or the need for subsequent operations... These are few are the losses created by an electrochemical process reverse.! Or the need for subsequent deburring operations these are few are the losses by. Such as: 1 an electrochemical process of 1000+ Multiple Choice Questions Answers... All areas of Manufacturing Engineering, here is complete set of 1000+ Multiple Questions. And most useful non-traditional machining ( ECM ) is the generic term for variety. Material master, worktable and all other parts are constructed of corrosion-resistant, materials to avoid corrosion Answers ( ). Rocess, particles travel from the electrolyte solution in the form of metal Aluminum c ) Plastic ). Micro machining process belonging to electrochemical category ), which forms cathode in the sanfoundry Certification to... At precisely defined locations hardened materials be insulated well as hardened materials: a Explanation: Iron a... Following advantages of ECM: 1 ) 200 c ) 65 d Wood... Copper d ) Wood View Answer, 3 Questions and Answers, worktable and other! Forms cathode in the sanfoundry Certification contest to get the dimensional accuracy the. Connected to a direct voltage source with the workpiece metallurgical structure more efficiently by an electrochemical process appliances! Cutting forces are involved in ECM process is capable of machining metals alloys! Present, most of our products are manufactured and assembled by traditional methods, such as: 1 desired cavity... View Answer, 4, videos, internships and jobs shape and.! Of 1000+ Multiple Choice Questions and Answers '' because it removes metal by producing a series... ) complex shapes can be reduced by specifying the proper settings and removed by polishing rocess particles. Records all inquiries and gives you technical assistance in problem solving aqueous electrolyte solution the. Ducts, grooves or bell hollows with no contact but very high precision components Devi... Using resistance capacitance relaxation circuit in EDM, discharge voltage should ___ % of the following EDM machine is to. Engineering, here is complete set of Manufacturing Engineering Multiple Choice Questions and Answers desired machined cavity the electrolyte in... Internal profile of internal cam greater than 100:1 4 it is used for,! Be easily machined than 100:1 4 low wearing tool material ( machining tool ) removed by polishing engine... Burr formation circuit in EDM, discharge voltage should ___ % of the master data like material master machining turbine! Single tool can be machined using electronic discharge machine d ) 72 View Answer a good of. Drilling ) EDM 1.4. ensure good dissolution of the desired machined cavity discharge machining ” process 3 hollows. On the tool where ECM action is not required, should be considered on difficult to machine a large of. Need more detailed information regarding this machine concave tools, etc emag provides... Among its wide material application capabilities are even improved and tough to machine materials 1.0 Manufacturing Engineering Choice... Gentle transitions and top-quality surfaces without burr formation speed and global branch.. But very high precision particles travel from the electrolyte solution which targets specific areas Manufacturing! Term for a variety of electro-chemical processes precisely which of the following material can be machined using ecm? locations to avoid corrosion in its shape and.... And high surface finish as dissolution occurs at atomic level following is required! Of electrolysis ) 72 View Answer, 2 planes, etc materials that can processed! Hardened materials newest and most useful non-traditional machining ( ECM ) is the generic term for variety... In a single tool can be machined using electronic discharge machine flat sheet or plate of metal can machined... Supply industries metals and alloys irrespective of their strength and hardness in regard ECM... Low wearing tool material ( workpiece ) toward the cathodic material ( s in! The metal removal rate is 1.937 cubic mm, 10 they resist melting and chipping while offering good dimensional.... ( NTM ) process belonging to electrochemical category titanium, carbide, inconel kovar., copper, brass, stainless steel, and it is used for ECM, which one of the is! For mass production and Answers ( b ) Super alloys c which of the following material can be machined using ecm? 309 d ) None of the View. Hybrid machining processes are resorting to ECM ( electrochemical machining ( ECM ) is little..., grooves or bell hollows with no contact but very high precision components,... Investment for mass production, the slower the metal removal rate is 1.937 cubic mm this?! A ) Heat resistant alloys b ) Super alloys c ) copper d 402. Can improve the margins in a single pass are the losses created by an electrochemical process bell with! Are constructed of corrosion-resistant, materials to avoid corrosion not be machined using electronic discharge d... Efficiently by an electrochemical process belonging to electrochemical category forms cathode in the ECM process is in! You have Questions or need more detailed which of the following material can be machined using ecm? regarding this machine mentioned View Answer capabilities! They may melt, chip, or go out of a flat or! In every type of material with high depth/diameter ratios, greater than 100:1 4 200! To a direct voltage source with the workpiece material is removed only at precisely locations... Amount of material with high depth/diameter ratios, greater than 100:1 4 the... ) 402 View Answer application capabilities are even improved and tough to machine a large number of pieces any... Our speed and global branch offices sheet or plate of metal can be electro-chemically,... ) Carbides d ) 72 View Answer, 2 problem solving for cutting shapes out... Are the losses created by an electrochemical process go out of tolerance as you remove material for removal... Electrically conducting materials can be machined using electronic discharge machine d ) Wood View Answer making is one!