If abrasive water jet machining is used, abrasive particles mixed in water stream before entering into nozzle. What are the processes where Abrasive jet machining can be used? 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 … 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. What is the frequency of mixing chamber, consisting of gas and abrasives? b) 2.0 to 8.0 kg /cm2 Ability to cut fragile and heat-sensitive materials without damage as no heat is generated due to the passing of gas or air. Polishing of plastic, Nyon can be done easily. 2 Abrasive Jet Machining 2.0 INTRODUCTION In abrasive jet machining, a focused stream of abrasive particles, carried by high pressure air or gas is made to impinge on the work surface through a nozzle and work material is removed by erosion by high-velocity abrasive particles. View Answer, 3. The material removal rate is slow and its application is therefore limited. 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. 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. View Answer, 10. This is basic of water jet machining (WJM). View Answer, 8. It separate metal particle from water and this water is further send to reservoir. This test is Rated positive by 87% students preparing for Mechanical Engineering.This MCQ test is related to Mechanical Engineering syllabus, prepared by Mechanical Engineering teachers. The gases used are nitrogen, carbon dioxide or clean air. This process is mainly employed for such machining works which are otherwise difficult, such as thin sections of hard metals and alloys, cutting of material which is sensitive of heat damage, producing intricate holes, deburring, etching, polishing etc. It also used to reduce noise associate with WJM. Waterjet machining is an innovative cutting method, and one of the fastest-growing processes for machining today, thanks to its ease of use and versatility. In machining system of AJM, what is/are the gas/es used for carrying the abrasives? View Answer, 6. Abrasive jet machining is a non-traditional machining process which is mostly used in machining of hardened metals. c) Any fluids 1. In Abrasive Jet Machining (AJM), abrasive particles are made to impinge on the work material at a high velocity. Home >> Category >> Mechanical Engineering (MCQ) questions and answers >> Advanced Machining Process; 1) The Laser Beam Machining process can be carried out, when the media for energy transfer between tool and workpiece is. c) decreases, becomes stable and then increases. a. All Rights Reserved. The fragile material can be easily machined. d) All of the mentioned Following are the parts of abrasive jet machining: The filtered gas, supplied under a pressure of 2 to 8 kgf/cm to the mixing chamber containing the abrasive powder and vibrating at 50 Hz entrains the abrasive particles and is then passed into a connecting hose. 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. b) Cutting 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. Dec 26,2020 - Unconventional Machining Process - 3 | 10 Questions MCQ Test has questions of Mechanical Engineering preparation. 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. a) Glass What is Abrasive Jet Machining. It is used for deburring, etching, and cleaning of brittle metals, alloys, and non-metallic materials. b) Ceramics This process can be advantageously utilized for surface cleaning, coating removing, deflashing, trimming, engraving, deburring, drilling, parting, ceramic abrading, glass frosting, etc. 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. d) All of the mentioned d) increases, becomes stable and then decreases . A typical material removal rate for abrasive jet machining is 16 mm/min in cutting glass. This set of Advanced Machining Processes Multiple Choice Questions & Answers (MCQs) focuses on “Water Jet Machining – Introduction and Machining system”. As the name suggests, Abrasive Jet Machining uses a jet of abrasives to remove materials from the workpiece. In advanced machining processes, what is the full form of AJM? View Answer, 5. This outgoing high-speed stream of the mixture of gas and abrasive particles is known as abrasive jet. a) Copper The drain and catcher system is used to remove debris and other machined particle form water. Ability to cut intricate hole shapes in materials of any hardness and brittleness. d) All of the mentioned View Answer. Home MCQ Production Engg Material properties and Metal Forming ... Set 02 Material properties and Metal Forming (Machining) Processes - Set 02 MCQ Production Engg Edit Practice Test: Question Set - 02. State whether the following statement is true or false. What used to be known in the 80s as a rather obscure, albeit fascinating, cutting method has gone mainstream. View Answer, 4. a) Cam drives This set of Advanced Machining Processes Multiple Choice Questions & Answers (MCQs) focuses on “Abrasive Jet Machining – Introduction and Machining system”. In abrasive jet machining, as the distance between the nozzle tip and the work surface increases, the material removal rate. While larger sizes are used for rapid removal rate. 1.In abrasive jet machining, as the distance between the nozzle tip and the work surface increases, the material removal rate. Abstract- Abrasive Water Jet Machining (AWJM) is a versatile machining process primarily used to machine hard and difficult to machine materials. d) 70 Hz c) Hard materials c) 10.0 to 18.0 kg/cm2 Nozzles made of tungsten carbide have an average life of 8 to 12 hours. Abrasive Jet Machining writers available to do this job. d) All of the mentioned Abrasive Flow Machining AUTOFLOW: AFM at Its Best. This pipeline carries a pressure gauge and a regulator to control the gas flow and its pressure. Sanfoundry Global Education & Learning Series – Advanced Machining. View Answer, 13. In this post, you learn abrasive jet machining its working principle, parts, applications, advantages and disadvantages. Answer: a Explanation: Abrasive grains of size, between 10 – 40 µm can be used for machining. 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. Water Jet Machining (WJM) also called water jet cutting, is a non-traditional machining process in which high-velocity jet of water is used to remove materials from the surface of the workpiece.WJM can be used to cut softer materials like plastic, rubber or wood. The objective of this paper is to optimize material removal rate and kerf width simultaneously using AWJM process on INCONEL 718. d) None of the mentioned a) Nitrogen In addition to the above abrasives, dolomite (calcium magnesium carbonate) of 200 grit size is found suitable for light cleaning and etching. Join our social networks below and stay updated with latest contests, videos, internships and jobs! Masks, which are used to confine the jet stream location on work piece are made of, which type of materials? An ever growing number of fabricators and machine shops are gaining a competitive advantage by incorporating abrasive waterjets to their machining mix. c) Nitrogen In order to cut harder materials like metals or granite, an abrasive material is mixed in the water. 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. The gas flow and pressure is controlled by a pressure regulator. “In Abrasive jet machining, commercial grades powders can be used for machining.” a) CO2 Types of Spanners are used more than any other tool for tightening or opening different jobs. Waspaloy is often used in aviation combustion chamber at extreme environments. In this article, you'll learn what is cams and followers and its types, nomenclature, working, application, and more with diagrams. Explanation: No explanation is available for this question! With repeated impacts, small bits of material get loosened and a fresh surface is exposed to the jet. In Abrasive jet machining, what may be the size of the abrasive grains used? In machining system of AJM, which is the medium of carrying the abrasive grains for machining? Here we also use compressed air instead of other gas. d) All of the mentioned b) False If you found this article helpful share with your friends. d) 200 – 300 µm c) 50 Hz Drain and Catcher. To control the size and shape of the cut either the workpiece or the nozzle is moved by cams, pantographs or other suitable mechanisms. Their writers are highly professional, and always deliver orders on time. a) 10 – 40 µm to harder materials such as Inconel. 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