This set of Advanced Machining Processes Multiple Choice Questions & Answers (MCQs) focuses on “Abrasive Jet Machining – Introduction and Machining system”. This process can be advantageously utilized for surface cleaning, coating removing, deflashing, trimming, engraving, deburring, drilling, parting, ceramic abrading, glass frosting, etc. Abrasive powder feed rate is controlled by the amplitude of vibration of the mixing chamber. WHAT IS ABRASIVE JET MACHINING ? Abrasive Water Jet Machining (AWJM) is one of the non-conventional machining processes which make use of high water pressure to be converted into jet of high velocity mixed with abrasive particles. c) Any fluids d) Air What is the full form of WJM in advanced machining processes? It has capability to cut a large variety of materials ranging from softer materials such as wood, plastics, etc. b) Glass View Advanced Machining Sheet.pdf from VIBRATION MED 101 at Engineering College. To control the size and shape of the cut either the workpiece or the nozzle is moved by cams, pantographs or other suitable mechanisms. View Answer, 3. d) increases, becomes stable and then decreases . While larger sizes are used for rapid removal rate. What is Abrasive Jet Machining. 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. View Answer, 11. Balasubramaniam, J. Krishnan, (1998) Examined the abrasive jet de-burring process parameters and the edge nature of abrasive jet de-burred parts. The AJM differs from sandblasting. Abrasive jet machining is a non-traditional machining process which is mostly used in machining of hardened metals. 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. The machining accuracy is poor and the nozzle wear rate is high. d) All of the mentioned a) Automatic Jet Manufacturing If abrasive water jet machining is used, abrasive particles mixed in water stream before entering into 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. 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. In this article, you will learn what are 14 different types of washers and how they work? Dimensional tolerances are in the range of ± 2 to ± 5 µm. Answer Explanation ANSWER: any of the above medium. with [Pictures & PDF], 12 Types of Spanners and Their Uses [with Pictures] PDF. The jet of abrasive particles is carried by carrier gas or air. View Answer, 2. a. air b. liquid c. vacuum d. any of the above medium. The process parameters are chosen as abrasive flow rate, pressure, and standoff distance. What used to be known in the 80s as a rather obscure, albeit fascinating, cutting method has gone mainstream. b) SiC ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) 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. Electrochemical Machining c. Abrasive Jet Machining d. Laser Beam Machining (Ans:b) 21. c) Deburring Join our social networks below and stay updated with latest contests, videos, internships and jobs! In machining system of AJM, which is the medium of carrying the abrasive grains for machining? 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. a) True I would have failed my psychology course if it wasn’t for these guys. In Abrasive jet machining, what may be the size of the abrasive grains used? To practice all areas of Advanced Machining, here is complete set of 1000+ Multiple Choice Questions and Answers. b) decreases continuously. It is a fast (typically, 500 μm depth in 20 min), inexpensive, and accurate directional etch technique for brittle materials like glass, silicon, and ceramics. MCQ on Mechanical Energy Based Unconventional Machining Process. Abstract- Abrasive Water Jet Machining (AWJM) is a versatile machining process primarily used to machine hard and difficult to machine materials. a) Glass 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. c) 50 Hz d) 70 Hz In advanced machining processes, what is the full form of AJM? Smaller sizes are used for good surface finish and precision work. In AJM, which of the following materials are used as abrasive grains? Dec 27,2020 - Unconventional Machining Process - 1 | 10 Questions MCQ Test has questions of Mechanical Engineering preparation. b) False a) Liquids Types of Spanners are used more than any other tool for tightening or opening different jobs. 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