Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 28, Problem 17QLP
Comment on your observations regarding the contents of Fig.V.1.
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-3m
Fig.(3)
• 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
e) Size of pump inlet and discharge tubing
1. In the manufacture of automotive-body panels from carbon-steel sheet, stretcher strains (Lueders
bands) are observed, which detrimentally affect surface finish. How can stretcher strains be
eliminated? Explain with appropriate sketches. Also discuss how wrinkles in a deep drawing operation
can be eliminated.
Chapter 28 Solutions
Manufacturing Engineering & Technology
Ch. 28 - Define the terms wafer, chip, die, device,...Ch. 28 - Why is silicon the semiconductor most used in...Ch. 28 - What do the abbreviations BJT, MOSFET, VLSI,...Ch. 28 - Prob. 4RQCh. 28 - Prob. 5RQCh. 28 - What are the purposes of prebaking and...Ch. 28 - Define selectivity and isotropy, and their...Ch. 28 - Prob. 8RQCh. 28 - Prob. 9RQCh. 28 - What are the levels of interconnection?
Ch. 28 - Which is cleaner, a Class-10 or a Class-1 clean...Ch. 28 - Prob. 12RQCh. 28 - What is a via? Why is it important?Ch. 28 - Describe how electrical connections are...Ch. 28 - Prob. 15RQCh. 28 - Prob. 16RQCh. 28 - Comment on your observations regarding the...Ch. 28 - Describe how n-type and p-type dopants differ.Ch. 28 - Prob. 19QLPCh. 28 - How is epitaxy different from other techniques...Ch. 28 - Note that, in a horizontal epitaxial reactor...Ch. 28 - The table that follows describes three...Ch. 28 - Prob. 23QLPCh. 28 - What is accelerated life testing? Why is it...Ch. 28 - Explain the difference between a die, a chip, anda...Ch. 28 - A common problem in ion implantation is...Ch. 28 - Examine the hole profiles shown in Fig. P28.27...Ch. 28 - Referring to Fig. 28.24, sketch the shape of the...Ch. 28 - Prob. 29QTPCh. 28 - Prob. 30QTPCh. 28 - Prob. 31QTPCh. 28 - A certain design rule calls for metal lines to be...Ch. 28 - Prob. 33QTPCh. 28 - If a square mask of side length 100 m is placed on...Ch. 28 - Obtain an expression for the width of the trench...Ch. 28 - Prob. 36SDPCh. 28 - Inspect various electronic and computer equipment,...Ch. 28 - Describe your understanding of the important...Ch. 28 - Make a survey of the necessity for clean rooms in...Ch. 28 - Prob. 40SDPCh. 28 - Prob. 41SDPCh. 28 - Estimate the time required to etch a spur gear...Ch. 28 - Prob. 43SDPCh. 28 - Review the specific devices, shown in Fig. V.2....
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