Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Textbook Question
Chapter 14, Problem 17QLP
How can you tell whether a certain part is forged cast? Explain the features that you would investigate.
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Question 7
To what thickness can a solid cylinder of C38500 bronze, that is 30 mm in diameter and
60 mm high, be forged in a press that can generate 450 kN? Assume frictionless
conditions occur during the forging process.
What are the main advantages of forging and explain forgeability.
When deforming metal at room temperature, what kind of forging will you prefer?
Chapter 14 Solutions
Manufacturing Engineering & Technology
Ch. 14 - What is the difference between cold, warm, and hot...Ch. 14 - Explain the difference between open-die and...Ch. 14 - Explain the difference between fullering, edging,...Ch. 14 - What is flash? What is its function?Ch. 14 - Why is the intermediate shape of a part important...Ch. 14 - Describe the features of a typical forging die.Ch. 14 - Explain what is meant by load limited, energy...Ch. 14 - What type of parts can be produced by rotary...Ch. 14 - Why is hubbing an attractive alternative to...Ch. 14 - What is the difference between piercing and...
Ch. 14 - What is a hammer? What are the different kinds of...Ch. 14 - Why is there barreling in upsetting?Ch. 14 - What are the advantages and disadvantages of...Ch. 14 - Why are draft angles required in forging dies?Ch. 14 - Is a mandrel needed in swaging?Ch. 14 - Describe and explain the factors that influence...Ch. 14 - How can you tell whether a certain part is forged...Ch. 14 - Identify casting design rules, described in...Ch. 14 - Describe the factors involved in precision...Ch. 14 - Why is control of the volume of the blank...Ch. 14 - Why are there so many types of forging machines...Ch. 14 - What are the advantages and limitations of cogging...Ch. 14 - What are the advantages and limitations of using...Ch. 14 - Review Fig. 14.6e and explain why internal draft...Ch. 14 - Comment on your observations regarding the...Ch. 14 - Describe your observations concerning the control...Ch. 14 - Prob. 27QLPCh. 14 - Describe the difficulties involved in defining the...Ch. 14 - Describe the advantages of servo presses for...Ch. 14 - List the general recommendations you would make...Ch. 14 - Which would you recommend, (a) hot forging and...Ch. 14 - Take two solid, cylindrical specimens of equal...Ch. 14 - Calculate the room-temperature forging force for a...Ch. 14 - Using Eq. (14.2), estimate the forging force for...Ch. 14 - To what thickness can a solid cylinder of 1020...Ch. 14 - In Example 14.1, calculate the forging force,...Ch. 14 - Using Eq. (14.1), make a plot of the forging...Ch. 14 - How would you go about estimating the punch force...Ch. 14 - A mechanical press is powered by a 30-hp motor and...Ch. 14 - A solid cylindrical specimen, made of a perfectly...Ch. 14 - Devise an experimental method whereby you can...Ch. 14 - Assume that you represent the forging industry and...Ch. 14 - Figure P14.44 shows a round impression-die forging...Ch. 14 - Prob. 45SDPCh. 14 - Prob. 46SDPCh. 14 - Review the sequence of operations in the...Ch. 14 - Prob. 48SDPCh. 14 - Discuss the possible environmental concerns...Ch. 14 - List the advantages and disadvantages in using a...
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- Explain the principle used in Residual Stress Measurment with advantages, disadvantages and aplicationarrow_forwardQuestion 7 7.1 To what thickness can a solid cylinder of C38500 bronze, that is 30 mm in diameter and 60 mm high, be forged in a press that can generate 450 kN? Assume frictionless conditions occur during the forging process. 7.2 Which recommendations you would make for forging materials with limited ductility.arrow_forwardWhat is the approximate yield strength of 250 maraging steel at room temperature? (No need to do a 0.2% offset, just estimate from the graph)arrow_forward
- Describe the Castigliano's Theorem?arrow_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_forwardPlease don't provide handwrittem solution ..... In carbon steels, what is “pearlite”? In your explanation, describe both its composition and structure.arrow_forward
- The majority of automobile alloy wheels are to be produced from A356 aluminum alloy by low pressure casting technique. Which method/s would you prefer to strengthen the wheels? Justify your answers and explain the detailed procedure steps which you would follow (Hint: You may need to check the related literature and the chemical composition of the alloy in order to determine the right job/s).arrow_forwardSuggest the optimum parameter setting or methods to obtain high quality moulded parts.arrow_forwardPlease show your solution clearly thank you (9)arrow_forward
- Increasing the degree of graphite nodularity produces an improvement in cast iron elongation, due to ........... .........arrow_forwardSHOW YOUR COMPLETE SOLUTIONarrow_forward1. A component is designed to be hot forged in an impression die. The projected area of the product is 5800 mm2. During the forging process flashing is formed so that the area including the flash will be 8900 mm2. The part geometry is considered to be simple and the heated work material yields at 92 MPa. Calculate the maximum force required to perform the operation. 2. What are the advantages and disadvantages to forge a product through the open forging process, rather than to machine it from the same material?arrow_forward
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