EBK MANUFACTURING ENGINEERING & TECHNOL
7th Edition
ISBN: 9780100793439
Author: KALPAKJIAN
Publisher: YUZU
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Chapter 25, Problem 31QLP
Explain the advantages and disadvantages of machine-tool frames made of gray-iron castings.
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Chapter 25 Solutions
EBK MANUFACTURING ENGINEERING & TECHNOL
Ch. 25 - Describe the distinctive features of machining...Ch. 25 - Explain how the tooling system in a machining...Ch. 25 - Explain the trends in materials used for...Ch. 25 - Is there any difference between chatter and...Ch. 25 - What are the differences between forced and...Ch. 25 - Explain the importance of foundations in...Ch. 25 - Explain why automated pallet changers and...Ch. 25 - What types of materials are machine-tool bases...Ch. 25 - What is meant by the modular construction of...Ch. 25 - What is a hexapod? What are its advantages?
Ch. 25 - What factors contribute to costs in machining...Ch. 25 - List the reasons that temperature is important in...Ch. 25 - Explain the technical and economic factors that...Ch. 25 - Spindle speeds in machining centers vary over a...Ch. 25 - Explain the importance of stiffness and damping of...Ch. 25 - Are there machining operations described in...Ch. 25 - How important is the control of cutting-fluid...Ch. 25 - Review Fig. 25.10 on modular machining centers,...Ch. 25 - Prob. 19QLPCh. 25 - Describe the adverse effects of vibration and...Ch. 25 - Describe some specific situations in which thermal...Ch. 25 - Prob. 22QLPCh. 25 - Prob. 23QLPCh. 25 - Prob. 24QLPCh. 25 - List the parameters that influence the temperature...Ch. 25 - List and explain factors that contribute to poor...Ch. 25 - Prob. 27QLPCh. 25 - Prob. 28QLPCh. 25 - Describe types and sizes of workpieces that would...Ch. 25 - Prob. 30QLPCh. 25 - Explain the advantages and disadvantages of...Ch. 25 - What are the advantages and disadvantages of (a)...Ch. 25 - What would be the advantages and limitations of...Ch. 25 - Explain how you would go about reducing each of...Ch. 25 - Describe workpieces that would not be suitable for...Ch. 25 - Give examples of forced vibration or self-excited...Ch. 25 - A machining-center spindle and tool extend 10 in....Ch. 25 - Using the data given in the example, estimate the...Ch. 25 - A machining-center spindle and tool extend 12 in....Ch. 25 - In the production of a machined valve, the labor...Ch. 25 - Estimate the optimum cutting speed in Problem...Ch. 25 - Prob. 42QTPCh. 25 - If you were the chief engineer in charge of the...Ch. 25 - Prob. 45SDPCh. 25 - Make a list of components of machine tools that...Ch. 25 - The cost of machining and turning centers is...Ch. 25 - Prob. 49SDPCh. 25 - Describe your thoughts on whether or not it is...Ch. 25 - Prob. 51SDPCh. 25 - Prob. 53SDP
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- A 200 mm long magnesium alloy bar, 63 mm in diameter is turned on a lathe using a high speed steel cutter travelling at 180 mm/min. The spindle rotates at 450 rpm and lathe is equipped with a 10 kW motor, operating at a mechanical efficiency of 92%. The final diameter of the magnesium alloy bar is 59,5 mm. Indicate with a sketch the recommend size and location of the following tool angles: back rake, side rake, end relief, side relief and side and end cutting edge. Calculate the cutting time for the machining process.Calculate the required cutting force.arrow_forwardExplain how machineries equipment sustain and stabilize thermal effects.arrow_forwarda rod is to be manufactured using turning operations and is made of Nickel alloy. The rod is 80 mm in length and 15 mm in diameter. The final required diameter is 10 mm and the spindle rotates at N = 500 rpm while the tool axial speed is 100 mm/ min. Calculate material removal rate, cutting speed, cutting time, the power dissipated, and cutting force.arrow_forward
- 1. A milling operation is to be performed on a ductile cast iron shaft to make slots for assembly. The operation will be done at high speeds for good surface finish. For each of the following tool materials, indicate whether it is a reasonable candidate to use in the operation with a detailed description of why or why not including required alloying element/grade/group etc. where applicable: (i) plain carbon steel, (ii) high-speed steel, (iii) cemented carbide, (iv) ceramic, and (v) Sintered polycrystalline diamond. After selection of material/materials discuss about (i) recommended angles and tool signature (ii) how to held cutting edge, and type of cutting fluids With reasons for each recommended material. 2. Make a figure and explain how shear plane angle effect the power requirements in the machining. How can you reduce the power requirements during machining in orthogonal cutting?arrow_forwardmanufacturing technology please answer as soon as possiblearrow_forwardWhat are the three most common grips for drawing? Explain each type of grip, along with their advantages and shortcomings in different drawings. Provide some examples.arrow_forward
- A 150-mm-long, 12.5-mm-diameter 304 stainless-steel rod is being reduced in diameter to 12.0 mm by turning on a lathe. The spindle rotates at N = 400 rpm, and the tool is traveling at an axial speed of 200 mm/min. Calculate the cutting speed, material- removal rate, cutting time, power dissipated, and cutting force. %3Darrow_forwardA piece with a height of 120 mm and a diameter of 75 mm can be increased to 80 mm in height by pile-forging.is reduced. The coefficient of friction between the workpiece and the mold is 0.13. Flow curve of the workpiece, 165It is defined by a strength coefficient of MPa and a hardening exponent of 0.24. force during operationCalculate at the moments given below and obtain the force-workpiece height graph(1) as soon as it reaches the yield point (yield strain = 0.002),(2) height h = 115 mm,(3) height h = 110 mm,(4) height h = 105mm,(5) height h = 100mm,(6) height h=95mm,(7) height h = 90 mm,(8) height h = 85mm,(9) height h = 80 mm,arrow_forwardAn engine lather is a power-driven , general-purpose machine tool used for ( a) measuring material quantity (b)producing cylindrical work-pieces, (c) Cutting gears (d)melting metalsarrow_forward
- A 150 mm long with 12.5 mm in diameter of a stainless steel rod is being reduced in diameter to 12.0 mm using a lathe machine. The machine spindle rotates at 400 rpm, and tool is traveling at an axial speed of 200 mm/min. (c) Calculate: (i) Cutting speed (ii) Material remo val rate (iii) Cutting time.arrow_forwardUse brief sentences, sketches or calculations to answer the following questions:arrow_forwardIllustrate the basic operations of sheet metal working, indicating on the side of each illustration the name, type of load applied and type of tools used.arrow_forward
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