a) Vaporization Abrasive jet machining (AJM), also known as abrasive micro-blasting, pencil blasting and micro-abrasive blasting, is an abrasive blasting machining process that uses abrasives propelled by a high velocity gas to erode material from the workpiece. Answer Explanation ANSWER: any of the above medium. It is often used for cleaning and polishing of plastic, nylon and Teflon components, the frosting of the interior surface of the glass tubes, etching of markings on glass cylinders, etc. View Advanced Machining Sheet.pdf from VIBRATION MED 101 at Engineering College. ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) Dimensional tolerances are in the range of ± 2 to ± 5 µm. a) 10 – 40 µm b) 50 – 100 µm c) 100 – 150 µm d) 200 – 300 µm View Answer. A regulator is incorporated in the line to control the flow of abrasive particles compressed air or high-pressure gas is supplied to the mixing chamber through a pipeline. In addition to the above abrasives, dolomite (calcium magnesium carbonate) of 200 grit size is found suitable for light cleaning and etching. State whether the following statement is true or false. The drain and catcher system is used to remove debris and other machined particle form water. c) Rubber Waspaloy is also a nickel-based superalloy with exceptional strength properties at a temperature of 980 °C. Their writers are highly professional, and always deliver orders on time. View Answer, 9. Drain and Catcher. Common uses include cutting heat-sensitive, brittle, thin, or hard materials. b) Abrasive Jet Machining Abrasive Jet Machining is also known as Abrasive micro blasting, Pencil blasting, or Micro Abrasive Blasting.. Abrasive Jet Machining is useful to form edge shapes or surface machining in hard, brittle, and temperature-sensitive material. here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Advanced Machining Questions and Answers – WJM – Advantages and Disadvantages, Next - Advanced Machining Questions and Answers – AJM – Material Removal Rate and Process parameters, Machine Design Questions and Answers – Levers, Machine Design Questions and Answers – Fracture Mechanics, Curved beams & Thermal Stresses, Mechanical Engineering Questions and Answers, Engineering Materials and Metallurgy 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 Processes Questions and Answers, Advanced Machining Questions and Answers – Electro Discharge Machining-Introduction, Advanced Machining Questions and Answers – Electronbeam Machining-Introduction, Equipment and Material removal, Advanced Machining Questions and Answers – AWJM – Process Capabilities, Advanced Machining Questions and Answers – Electro Chemical Machining-Introduction and Principle of electrolysis, Advanced Machining Questions and Answers – Non Traditional Machining, Advanced Machining Questions and Answers – Plasma Beam Machining-Introduction And Machining system, Advanced Machining Questions and Answers – MAF – Applications, Advanced Machining Questions and Answers – Water Jet Machining – Introduction and Machining system, Advanced Machining Questions and Answers – Ion Beam Machining-Introduction, Material Removal Rate, Advanced Machining Questions and Answers – AJM – Material Removal Rate and Process parameters, Advanced Machining Questions and Answers – Ultrasonic Machining – Introduction, Advanced Machining Questions and Answers – Traditional Machining, Advanced Machining Questions and Answers – USM – Factors Affecting MRR. Abstract- Abrasive Water Jet Machining (AWJM) is a versatile machining process primarily used to machine hard and difficult to machine materials. a) True Sanfoundry Global Education & Learning Series – Advanced Machining. c) Trace mechanisms Which type of materials can be machined using Abrasive jet machining? c) Hard materials c) Automated Jet Machining a) Nitrogen In machining system of AJM, which of the following controls the relative motion between work piece and nozzle? Smaller sizes are used for good surface finish and precision work. 1. Abrasive Jet Machining writers available to do this job. with [Pictures & PDF], 12 Types of Spanners and Their Uses [with Pictures] PDF. The fundamental principle of Abrasive jet machining involves the use of a high-speed stream of abrasive particles carried by a high-pressure gas or air on the work surface through a nozzle. This test is Rated positive by 92% students preparing for Mechanical Engineering.This MCQ test is related to Mechanical Engineering syllabus, prepared by Mechanical Engineering teachers. View Answer, 6. Advanced Manufacturing Processes Part One MCQ Choose the correct answer 1- Abrasive jet machining … View Answer, 5. Thank you so much team Pro Homework Help! It also used to reduce noise associate with WJM. In abrasive jet machining, kinetic energy of high velocity (100 – 300m/s) abrasive jet is utilized to remove work material by impact erosion. Electrochemical Machining c. Abrasive Jet Machining d. Laser Beam Machining (Ans:b) 21. c) Glass beads View Answer, 10. Abrasive jet machining (AJM) is one of the advanced machining processes where a high velocity jet of abrasive is used to remove material from work surface by erosion. He completed his engineering studies in 2014 and is currently working in a large firm as Mechanical Engineer. 3. b) Cutting High velocity of (water mixed with abrasive) is projected on the work piece which causes abrasive action and deformation of work piece takes place. a) 10 Hz This is basic of water jet machining (WJM). Nozzles made of tungsten carbide have an average life of 8 to 12 hours. Abrasive jet machining : Download: 5: Water jet cutting and Abrasive water jet machining: Download: 6: Magnetic abrasive finishing: Download: 7: Abrasive Flow Finishing: Download: 8: Magnetorheological Finishing: Download: 9: Magnetorheological Abrasive Flow Finishing (Part I) Download: 10: Magnetorheological Abrasive Flow Finishing (Part II) Download: 11: Magnetorheological Abrasive … The laser used can be of solid or gaseous type b. Nozzles have a great degree of abrasion wear, they are made of hard materials such as tungsten carbide or synthetic sapphire to reduce the wear rate. Abrasive powder feed rate is controlled by the amplitude of vibration of the mixing chamber. In machining system of AJM, what is/are the gas/es used for carrying the abrasives? b) decreases continuously. b) 2.0 to 8.0 kg /cm2 2. a) Liquids If abrasive water jet machining is used, abrasive particles mixed in water stream before entering into nozzle. The process parameters are chosen as abrasive flow rate, pressure, and standoff distance. You can... Spanners and It's Types © 2011-2020 Sanfoundry. In this machining process a focus stream of abrasive particles are forces to impinge on work piece at high velocity. View Answer, 8. Dec 26,2020 - Unconventional Machining Process - 3 | 10 Questions MCQ Test has questions of Mechanical Engineering preparation. 8.5 Average quality score. What is the full form of WJM in advanced machining processes? Which of the following is not true for Laser beam machining? What is the pressure of gas that is to be supplied, for carrying the abrasives? It separate metal particle from water and this water is further send to reservoir. It has capability to cut a large variety of materials ranging from softer materials such as wood, plastics, etc. b) False 11. Filter: Filter indicates the cleanness of the fuel supply. Polishing of plastic, Nyon can be done easily. a. air b. liquid c. vacuum d. any of the above medium. Masks, which are used to confine the jet stream location on work piece are made of, which type of materials? b) Pantographs With repeated impacts, small bits of material get loosened and a fresh surface is exposed to the jet. d) 25.0 to 35.5 kg/cm2 Explanation: No explanation is available for this question! The metal removal rate depends upon the diameter of the nozzle, the composition of the abrasive gas mixture, the hardness of abrasive particles and that of work material, particle size, the velocity of jet and distance of the workpiece from the jet. Abrasive Flow Machining AUTOFLOW: AFM at Its Best. In machining system of AJM, which is the medium of carrying the abrasive grains for machining? An abrasive is small, hard particle having sharp edges and an irregular shape . www.gtu-mcq.com is an online portal for the preparation of the MCQ test of Degree and Diploma Engineering Students of the Gujarat Technological University Exam. a) 10 – 40 µm It is another non traditional machining process where there is no contact between tool and the work piece. This abrasive and gas mixture emerges from a small nozzle mounted on a fixture at a high velocity ranging from 150 to 300 m/min. and their uses with pictures. c) Deburring The AJM differs from sandblasting. While nozzles of sapphire last for about 300 hours of operation when used with 27-micron abrasive powder. It is the material removal process where the material is removed by high velocity stream of air/gas or water and abrasive mixture . Not true for Laser Beam machining to 300 m/min and its application therefore. 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