PRECISION MACHINING TECHNOLOGY PACKAGE
3rd Edition
ISBN: 9780357262788
Author: Hoffman
Publisher: CENGAGE L
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Textbook Question
Chapter 3.4, Problem 8RQ
What type of band saw blade has HSS teeth welded to a carbon steel body?
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For the structure below, each member of the
truss will safely support a tensile force of 3 kN
and a compressive force of 1 kN. Determine
the largest mass m that can be safely
suspended. Hint: First work through this
algebraically to find the forces in each member
terms of the mass "m" to determine the largest
stress member.
1 m
t
1 m
1 m
1m + 1m
E
B
1977
m
Block A has a mass of 34 kg and block B has a mass of 41 kg.
The two blocks are stacked on the ramp with an incline of
Ꮎ
0 = 15.4°. Determine the largest horizontal force F that can
be applied to block B without either block moving for each of
the following two cases:
a.) The friction coefficient for the contact between blocks A
and B is μs1 0.56 and the friction coefficient for the
=
contact between block A and the ramp is μs2 = 0.34.
b.) The friction coefficient for the contact between blocks A
and B is 1 = 0.56 and the friction coefficient for the
contact between block A and the ramp is μs2 = 0.17.
Ꮎ
F
B
A
Part a)
The limiting slip condition occurs at
Select an answer
CC
BY NC SA
2016 Eric Davishahl
The maximum force before either block A or B slips is
N
Part b)
The limiting slip condition occurs at
Select an answer
The maximum force before either block A or B slips is
N
The crane truck has a weight of 11000 lb and a center of
gravity at point . The parking brake only locks the rear
wheels of the truck, so the front wheels are free to rotate.
Determine the maximum force F applied at the angle
=
0 30.5° that can be exerted on the crane without it
slipping or tipping for each of the following cases:
Case 1: The static friction coefficient between the rear tires
and the ground is μ. = 0.050.
ა
Case 2: The static friction coefficient between the rear tires
and the ground is
μα
==
0.33.
d
CGD
口
BY NC SA
F
2013 Michael Swanbom
кажо
с
Values for dimensions on the figure are given in the following
table. Note the figure may not be to scale.
Variable Value
a
5.5 ft
b
9 ft
C
4 ft
3 ft
10 ft
d
h
For Case 1, the constraint is Select an answer
F
=
lbs.
шал
For Case 2, the constraint is Select an answer
F
пал
lbs.
and
and
Chapter 3 Solutions
PRECISION MACHINING TECHNOLOGY PACKAGE
Ch. 3.1 - Information such as tolerances and scale can be...Ch. 3.1 - What view of a drawing usually shows the most...Ch. 3.1 - Prob. 3RQCh. 3.1 - The line type used to show edges of an object that...Ch. 3.1 - What line type is used to show edges of an object...Ch. 3.1 - What two line types work together to show sizes on...Ch. 3.1 - Identify the line types labeled in the print...Ch. 3.1 - Define and briefly describe the following...Ch. 3.1 - A dimension listed on an engineering drawing is...Ch. 3.1 - List and briefly describe the three types of...
Ch. 3.1 - Briefly describe the difference between a...Ch. 3.1 - The relationship between sizes of mating parts is...Ch. 3.1 - What does GDT stand for?Ch. 3.1 - A plane used as a reference for dimensions is...Ch. 3.1 - A GDT symbol and the amount of tolerance are shown...Ch. 3.1 - What are the five categories of symbols used in...Ch. 3.1 - What is a feature of size?Ch. 3.1 - Briefly explain the benefit of a position...Ch. 3.2 - Prob. 1RQCh. 3.2 - What is the purpose of layout fluid (dye)?Ch. 3.2 - Prob. 3RQCh. 3.2 - Briefly define a scriber and its use.Ch. 3.2 - What two angles can be laid out with the...Ch. 3.2 - What two tasks can a divider be used to perform?Ch. 3.2 - What safety precautions should be observed when...Ch. 3.2 - What would the divider setting be to scribe a...Ch. 3.2 - What would the divider setting be to scribe an arc...Ch. 3.2 - Prob. 10RQCh. 3.2 - Prob. 11RQCh. 3.2 - Briefly describe the use of a surface gage.Ch. 3.3 - What are three safety rules to observe when using...Ch. 3.3 - List three types of screwdriver tips.Ch. 3.3 - What is the advantage of using slip joint pliers?Ch. 3.3 - What is an advantage of using locking pliers?Ch. 3.3 - What are two uses for a ball peen hammer?Ch. 3.3 - What is the advantage of a soft face hammer?Ch. 3.3 - In what situation would a box-end wrench be chosen...Ch. 3.3 - List two precautions to observe when using...Ch. 3.3 - What is one method of preventing damage to work...Ch. 3.3 - List three safety precautions to be observed when...Ch. 3.3 - In which direction should hacksaw blade teeth...Ch. 3.3 - List two safety precautions that should be...Ch. 3.3 - Will a single-cut or a double-cut file remove...Ch. 3.3 - Will a single-cut or a double-cut file produce a...Ch. 3.3 - ___________ and _________ are two common filing...Ch. 3.3 - What tool is used to clean a file?Ch. 3.3 - What are the two forms of abrasives used in...Ch. 3.4 - Sawing machines can be divided into roughly four...Ch. 3.4 - The vertical band saw is particularly useful, as...Ch. 3.4 - The horizontal band saw is ideal for cutting...Ch. 3.4 - Cutting action on the power hacksaw is very...Ch. 3.4 - List three safety precautions to observe when...Ch. 3.4 - Briefly describe the process to prepare for...Ch. 3.4 - List three safety precautions to observe when...Ch. 3.4 - What type of band saw blade has HSS teeth welded...Ch. 3.4 - How many saw teeth should be engaged in the...Ch. 3.4 - Name the three different types of tooth patterns.Ch. 3.4 - What are the three types of tooth set and why is...Ch. 3.4 - The slot created in a workpiece by the saw blade...Ch. 3.4 - Explain how to use a push stick.Ch. 3.4 - Saws should be ____________ _____________ when a...Ch. 3.4 - Saw guides should be mounted ________ above the...Ch. 3.4 - Why must a band saw blade be annealed after...Ch. 3.4 - Why does a band saw blade need to be ground after...Ch. 3.4 - Clearance between the vertical band saw guides and...Ch. 3.4 - Band saw cutting speeds are given in _________.Ch. 3.5 - What is the main benefit of offhand abrasive...Ch. 3.5 - What type of metals should not be ground on a...Ch. 3.5 - Which wheel is finer, a 60 grit or a 36 grit?Ch. 3.5 - If a grinder runs at 3400 RPM and you have a wheel...Ch. 3.5 - How is a ring test performed?Ch. 3.5 - Why is it necessary to have blotters on both sides...Ch. 3.5 - The maximum distance that a spark breaker and tool...Ch. 3.5 - When should a grinding wheel be dressed?Ch. 3.5 - Where should you stand when using a grinder?Ch. 3.6 - Define drilling.Ch. 3.6 - What factors might determine when a hole must be...Ch. 3.6 - Prob. 3RQCh. 3.6 - Explain the purpose of a counterbore.Ch. 3.6 - What is the purpose of the pilot on a counterbore?Ch. 3.6 - What should be done as a drill nears the...Ch. 3.6 - Define thread as it relates to benchwork.Ch. 3.6 - Explain the major diameter of a thread.Ch. 3.6 - What is the TPI of a -20 thread?Ch. 3.6 - Name two types of tap wrenches.Ch. 3.6 - A 3/8-16 threaded hole needs to be tapped deeper....
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