The light waves from laser contain only one wavelength or color so it is known as monochromatic light. In laser beam machining process heat affected zone have smaller area in comparison with other unconventional machining processes. What is the full form of LASER in advanced machining processes? GRINDING Multiple choice Questions :-1. By conventional machining the MRR reduces with an increase in the work … In general, when the material temperature exceeds 90 °C, it will have an adverse effect on laser cutting (easy to blast and over-melt). The classification of the laser cutting machine control system. Explain the different types of lasing medium. The type of gas used to construct the laser medium can determine the lasers wavelength or efficiency. Liquid laser . 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 Laser Beam Machining (LBM) has the lowest metal removal rate of about 0.001-0.002 mm 3 /s. Explanation: Laser beam machining is more versatile and can be used for metal as well as non metal. Many materials can be used as the heart of the laser. 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. No cutting forces are involved in ECM process 3. 2. 4. NTMM By S K Mondal 2. Chemical Machining (CHM) has metal removal rate of about 0.15-30 mm 3 /s. by:Eworld Machine 2021-01-01. Following is an abrasive cutting (A) Milling (B) Grinding (C) Laser beam machining (D) All of the above. 5. 1. ECM is capable of machining metals and alloys irrespective of their strength and hardness 2. 4. 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. Laser cutting works by directing the output of a high-power laser, by computer at the material to be cut. Ultrasonic Machining (USM) has metal removal rate of about 5-10 mm 3 /s. 2. There are many types of lasers including gas lasers, fiber lasers, solid state lasers, dye … 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 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. : Ruby which is a chromium alumina alloy having a wavelength of The full form of LASER is Light Amplification by Simulated Emission of Radiation. Ans. ECM process consumes very high power 4. A liquid laser is a laser that uses the liquid as laser medium. 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