Manufacturing Engineering And Technology
7th Edition
ISBN: 9789810694067
Author: Stephen R. Schmid (author) Serope Kalpakjian (author)
Publisher: Pearson Education Orphans
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Textbook Question
Chapter 14, Problem 29QLP
Describe the advantages of servo presses for forging and stamping.
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Describe with the aid of a neat sketches two forging processes and briefly discuss their relative merits and limitations:
Q#2:(b)Explain the difference between Flat Rolling and Shape Rolling processes.
A 300 mm thick slab is being cold rolled using roll of 600 mm diameter. If the coefficient of friction is 0.08, the maximum possible reduction is,
Chapter 14 Solutions
Manufacturing Engineering And 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 principles of metal rolling in not more than 10 sentences.arrow_forwardCompare hot and cold rolling products in terms of surface quality, mechanical properties, force required for rolling.arrow_forwardForging processes may be characterized by die work limitation. This categorization yields three basic types.arrow_forward
- Derive the expression for roll separating force and power in rolling.arrow_forwardIn a rolling operation using rolls of diameter 400mm if a 35mm thick plate cannot be reduced to less than 20 mm in one pass coefficient of friction between the roll and the plate is??arrow_forwardBriefly explain various methods available for breakdown passes in rolling. Explain their applications.arrow_forward
- A strip (300x30 mm) is fed through a rolling mill with two powered rolls (each with radius of 300 mm) rotating at the speed of 60 rpm. The flow stress of work material is 90 MPa, and the coefficient of friction between rolls and work is 0.12. For a single rolling operation performed at the contact angle of 6.28°, calculate the followings:a) Work thickness after rolling (in mm)arrow_forward1. A round wire made from 1020 carbon steel is being drawn from a diameter of 12.5 mm to 9.5 mm in a draw die of 10°. For a coefficient of friction of 0.15, calculate required drawing force. 2. How would the extrusion process be effected if the die angle is increased?arrow_forwardCalculate the bite angle when rolling plates 12 mm thick using work rolls 600 mm diameter and reducing the thickness by 3 mm.arrow_forward
- Prepare a comparative table indicating at least 3 characteristics that distinguish volumetric deformation processes from sheet metal working.arrow_forwardClarify aspect of economically and technically grounds the preference of fine reductions rather than thick reductions per pass in flat rolling?arrow_forwardOne way to define forging procedures is by the extent to which the work is constrained in the die. Explain this classification system by identifying the three primary classes.arrow_forward
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Types of Manufacturing Process | Manufacturing Processes; Author: Magic Marks;https://www.youtube.com/watch?v=koULXptaBTs;License: Standard Youtube License