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