What is the full form of LASER in advanced machining processes? Very small space is required to set up ECM process By conventional machining the MRR reduces with an increase in the work … Laser Beam Machining (LBM) has the lowest metal removal rate of about 0.001-0.002 mm 3 /s. No cutting forces are involved in ECM process 3. Liquid laser . Ch 12 unconventional machining 1. Explanation: Laser beam machining is more versatile and can be used for metal as well as non metal. 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. 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 cutting works by directing the output of a high-power laser, by computer at the material to be cut. A laser is a device that emits a beam of coherent light through an optical amplification process. 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. 7) Which of the following statements are true for Electro-Chemical Machining (ECM)? : 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. The light waves from laser contain only one wavelength or color so it is known as monochromatic light. GRINDING Multiple choice Questions :-1. Ans. Following is an abrasive cutting (A) Milling (B) Grinding (C) Laser beam machining (D) All of the above. 1. 4. In general, when the material temperature exceeds 90 °C, it will have an adverse effect on laser cutting (easy to blast and over-melt). There are many types of lasers including gas lasers, fiber lasers, solid state lasers, dye … Ultrasonic Machining (USM) has metal removal rate of about 5-10 mm 3 /s. NTMM By S K Mondal 2. Chemical Machining (CHM) has metal removal rate of about 0.15-30 mm 3 /s. Grinding is best suited to the machining of 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. Explain the different types of lasing medium. 4. Laser cutters use a thin, focused laser beam to pierce and cut through materials to cut out patterns and g… The type of gas used to construct the laser medium can determine the lasers wavelength or efficiency. A liquid laser is a laser that uses the liquid as laser medium. 2. 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 5. The classification of the laser cutting machine control system. by:Eworld Machine 2021-01-01. In laser beam machining process heat affected zone have smaller area in comparison with other unconventional machining processes. Electro-Chemical Machining (ECM) has the highest metal removal rate of about 200-300 mm 3 /s 3. 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