Ans. The classification of the laser cutting machine control system. 10 Which one of the following processes would be appropriate for cutting a hole of 0.003 inch diameter through a plate of aluminum that is 1/16 in thick: (a) abrasive jet machining, (b) chemical milling, (c) EDM, (d) laser beam machining, (e) oxyfuel cutting, (f) water jet cutting, and (g) wire by：Eworld Machine 2021-01-01. There are many types of lasers including gas lasers, fiber lasers, solid state lasers, dye … In general, when the material temperature exceeds 90 °C, it will have an adverse effect on laser cutting (easy to blast and over-melt). Laser cutting works by directing the output of a high-power laser, by computer at the material to be cut. ECM is capable of machining metals and alloys irrespective of their strength and hardness 2. Many materials can be used as the heart of the laser. Grinding is best suited to the machining of Laser Cutting Basics: A laser cutter is a prototyping and manufacturing tool used primarily by engineers, designers, and artists to cut and etch into flat material. Liquid laser . 2. What is the full form of LASER in advanced machining processes? Ultrasonic Machining (USM) has metal removal rate of about 5-10 mm 3 /s. : Ruby which is a chromium alumina alloy having a wavelength of The full form of LASER is Light Amplification by Simulated Emission of Radiation. ECM process consumes very high power 4. Electro-Chemical Machining (ECM) has the highest metal removal rate of about 200-300 mm 3 /s 3. 4. Ch 12 unconventional machining 1. Laser cutters use a thin, focused laser beam to pierce and cut through materials to cut out patterns and g… The light waves from laser contain only one wavelength or color so it is known as monochromatic light. A laser is a device that emits a beam of coherent light through an optical amplification process. No cutting forces are involved in ECM process 3. 4. Need for Unconventional Processes New materials having high strength and hardness, such as nimonic alloys and alloys with alloying elements such as tungsten, molybdenum, and columbium are difficult to machine by the traditional methods. A liquid laser is a laser that uses the liquid as laser medium. NTMM By S K Mondal 2. By conventional machining the MRR reduces with an increase in the work … Explanation: Laser beam machining is more versatile and can be used for metal as well as non metal. Following is an abrasive cutting (A) Milling (B) Grinding (C) Laser beam machining (D) All of the above. Which of the following processes use mechanical energy as the principle energy source (3 answers): (a) electrochemical grinding, (b) laser beam machining, (c) conventional milling, (d) ultrasonic machining, (e) water jet cutting, and (f) wire EDM Laser Beam Machining (LBM) has the lowest metal removal rate of about 0.001-0.002 mm 3 /s. 1. Explain the different types of lasing medium. Laser cutting has the phenomenon of heat absorption and thermal diffusion, and the material temperature has a non-negligible influence on the quality of laser cutting. 2. Chemical Machining (CHM) has metal removal rate of about 0.15-30 mm 3 /s. In laser beam machining process heat affected zone have smaller area in comparison with other unconventional machining processes. GRINDING Multiple choice Questions :-1. 5. The type of gas used to construct the laser medium can determine the lasers wavelength or efficiency. Laser cutting is a technology that uses a laser to cut materials and is typically used for industrial manufacturing applications, but is also starting to be used by schools, small businesses and hobbyists. 7) Which of the following statements are true for Electro-Chemical Machining (ECM)? Very small space is required to set up ECM process Full form of laser in advanced machining processes so it is known monochromatic. 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