Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 16, Problem 57QTP
Figure P16.57 shows a parabolic profile that will define the mandrel shape in a spinning operation. Determine the equation of the parabolic surface. If a spun part will be produced from a 10-mm thick blank, determine the minimum required blank diameter.
Figure P16.57
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A 10 mm thick plate is rolled to 7 mm thick in a rolling mill using 1000 mm diameter rigid rolls. The neutral point is located at an angle of 0.3 times the bite angle from the exit. What will be the thickness of the plate at the neutral point.
Consider the extrusion of a cylindrical billet, and compute the following.
Assume the starting billet to have a length of 0.3m and a diameter of 15cm. This is extruded into a cylindrical product that is 3cm in diameter and 7.5cm long. Neglecting the areas on the two ends, compute the ratio between the product surface area (wraparound cylinder) and the surface area of the starting billet. How would this ratio change if the product were a square with the same corss-sectional area as that of the 3cm diameter circle?
Question 2. It is reduced to 80 mm with forging by stacking a part with a height of 120 mm and a
diameter of 75 mm. The friction coefficient between the workpiece and the mold is 0.13. The flow
curve of the workpiece is defined by a strength coefficient of 165 MPa and a ping-top of
0.24. Calculate the force during the process at the moments given below and obtain the
force-workpiece height graph
(1) as soon as it reaches the flow point (flow unit shape change = 0.002),
(2) height h = 115 mm,
(3) height h = 110 mm,
(4) height h = 105 mm,
(5) height h = 100 mm,
(6) height h = 95 mm,
(7) height h = 90 mm,
(8) height h = 85 mm,
(9) height h = 80 mm,
Chapter 16 Solutions
Manufacturing Engineering & Technology
Ch. 16 - How does sheet-metal forming differ from rolling,...Ch. 16 - What causes burrs? How can they be reduced or...Ch. 16 - Prob. 3RQCh. 16 - Describe the difference between compound,...Ch. 16 - Describe the characteristics of sheet metals that...Ch. 16 - Describe the features of forming-limit diagrams...Ch. 16 - List the properties of materials that influence...Ch. 16 - Give one specific application for each of the...Ch. 16 - Why do tubes buckle when bent? What is the effect...Ch. 16 - Define normal anisotropy, and explain why it is...
Ch. 16 - Describe earing and why it occurs.Ch. 16 - What are the advantages of rubber forming? Which...Ch. 16 - Explain the difference between deep drawing and...Ch. 16 - How is roll forming fundamentally different from...Ch. 16 - What is nesting? What is its significance?Ch. 16 - Describe the differences between compound,...Ch. 16 - What is microforming?Ch. 16 - Explain the advantages of superplastic forming.Ch. 16 - What is hot stamping? For what materials is it...Ch. 16 - What is springback? What is negative springback?Ch. 16 - Explain the differences that you have observed...Ch. 16 - Take any three topics from Chapter 2, and, with...Ch. 16 - Do the same as for Problem 16.22, but for Chapter...Ch. 16 - Identify the material and process variables that...Ch. 16 - Explain why springback in bending depends on yield...Ch. 16 - Explain why cupping tests may not predict well the...Ch. 16 - Identify the factors that influence the...Ch. 16 - Why are the beads in Fig. 16.36b placed in those...Ch. 16 - A general rule for dimensional relationships for...Ch. 16 - Section 16.2 stated that the punch stripping force...Ch. 16 - Is it possible to have ironing take place in an...Ch. 16 - Note the roughness of the periphery of the flanged...Ch. 16 - What recommendations would you make in order to...Ch. 16 - It has been stated that the quality of the sheared...Ch. 16 - Give several specific examples from this chapter...Ch. 16 - As you can see, some of the operations described...Ch. 16 - Through changes in clamping or die design, it is...Ch. 16 - How would you produce the part shown in Fig....Ch. 16 - It has been stated that the thicker the sheet...Ch. 16 - Prob. 41QTPCh. 16 - Calculate the value of R in Problem 16.41. Will...Ch. 16 - Estimate the limiting drawing ratio for the...Ch. 16 - Using Eq. (16.15) and the K value for TNT, plot...Ch. 16 - Section 16.5 states that the k values in bend...Ch. 16 - For explosive forming, calculate the peak pressure...Ch. 16 - Measure the respective areas of the solid outlines...Ch. 16 - Plot Eq. (16.6) in terms of the elastic modulus,...Ch. 16 - What is the minimum bend radius for a 1.0-mm-thick...Ch. 16 - Survey the technical literature and explain the...Ch. 16 - Using the data in Table 16.3 and referring to Eq....Ch. 16 - What is the force required to punch a square hole...Ch. 16 - In Case Study 16.2, it was stated that the reason...Ch. 16 - A cup is being drawn from a sheet metal that has a...Ch. 16 - Prob. 55QTPCh. 16 - Figure P16.57 shows a parabolic profile that will...Ch. 16 - Prob. 59SDPCh. 16 - Consider several shapes to be blanked from a large...Ch. 16 - Prob. 61SDPCh. 16 - Many axisymmetric missile bodies are made by...Ch. 16 - Metal cans are either two-piece (in which the...Ch. 16 - The design shown in Fig. P16.65 is proposed for a...Ch. 16 - Suggest consumer-product designs that could...Ch. 16 - How would you produce the part shown in Fig. 16.44...Ch. 16 - Using a ball-peen hammer, strike the surface of...Ch. 16 - Inspect a common paper punch and observe the shape...Ch. 16 - Obtain an aluminum beverage can and slit it in...Ch. 16 - Prob. 71SDPCh. 16 - Prob. 73SDPCh. 16 - On the basis of experiments, it has been suggested...Ch. 16 - Design a box that will contain a 4-in. 6-in. ...Ch. 16 - Repeat Problem 16.77, but design the box from a...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Consider the extrusion of a cylindrical billet. Assume the billet to have a length of 0.3m and a diameter of 0.15m. This is extruded into a cylindrical product that is 0.03m in diameter and 7.5m long (a reduction ratio of 25). Neglecting the areas on the two ends, compute the ratio between the product surface area (wraparound cylinder) and the surface area of the starting billet. How would this ratio change if the product were a square with the same cross-sectional area as that of the 0.03m diameter circle?arrow_forwardA melt spinning machine with 6 positions is producing a 950 denier PET yarn at a speed of 3000 m/min and 95% efficiency. Calculate: • Production rate of one position (in kg/hr.) • Production rate of the machine (in kg/hr.) Show calculations.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_forward
- A shell of 100 mm diameter and 100 mm height with the corner radius of 0.4 mm is to be produced by cup drawing. What is the required blank diameter?arrow_forwardA 200 mm wide and 42.0 mm thick plate made of low carbon steel is to be reduced in one pass in a rolling operation. As the thickness is reduced, the plate widens by 4%. The entrance speed of the plate is 15.0 m/min. The roll radius is 325 mm and the rotational speed is 49.0 rev/min. i. If the current horsepower of the available rolling machine is 950 HP, how much thickness could the machine reduce the plate thickness to? ii. If the required thickness needs to be 34.0mm, how could the original width of the plate be changed in order to use the same machine?arrow_forwardPlease Identify the correct answer along with concise reasoning( Step-by-step is preferred) on why the selected option is the right answer. Please also explain concisely why the remaining options are incorrect. I'll rate for the response positively if the answer is correct. Thx!arrow_forward
- The thickness of a sheet is reduced by rolling (without any change in width) using 600 mm diameter rolls. Neglect elastic deflection of the rolls and assume that the coefficient of friction at the roll-workpiece interface is 0.05. The sheet enters the rotating rolls unaided. If the initial sheet thickness is 2 mm, the minimum possible final thickness that can be produced by this process in a single pass isarrow_forwardAn annealed 4340 steel strip of 300 mm width and 7 mm thickness is rolled to a thickness of 5 mm. The roll radius is 175 mm and rotates at 180 rpm. Calculate the roll force and the power required for the process.arrow_forwardMake your solutions as detailed solutions, clean, and clear. Draw the Figure.arrow_forward
- In a sheet metal forming press, the shape to be formed is hemispherical cup of radius 15 cm in 2mm thick mild steel sheet. The force required to deform sheet is 8 kN. The forming hammer should approach job from a distance of 30 cm. The production rate required is 240 components/hr. Calculate and suggest the following specifications of the various hydraulic components used: a. Hydraulic cylinder (bore & length); b. Pump pressure and flow rate; c. Electric motor HP considering 75% pump efficiency; d. Reservoir size; and e. Size of pump inlet and discharge tubing.arrow_forwardA cup of internal diameter 80 mm and height 45 mm is to be drawn from a sheet metal 2 mm thick. Four blank sizes are available for the operation. You want to ensure the blank is large enough to make the required cup height while minimizing the material waste. Calculate the starting blank diameter for this operation?arrow_forwardA annealed copper strip 300mm wide and 25mm thick is being rolled to a thickness of 10mm in one pass. The roll radius 300mm and the rolls speed 100rpm. Please calculate the roll force required. Solve correctly please. (Gpt/Ai wrong answer not allowed)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University Press
Mechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSON
Thermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEY
Mechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage Learning
Engineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
Types of Manufacturing Process | Manufacturing Processes; Author: Magic Marks;https://www.youtube.com/watch?v=koULXptaBTs;License: Standard Youtube License