Download Chapter 21 (pg 501) 21.1. What are the three basic categories of

Chapter 21 (pg 501)
21.1.
What are the three basic categories of material removal processes? (page 482)
(2) Conventional machining, (2) Abrasive processes, and (3) Nontraditional machining.
21.2.
What distinguishes machining from other manufacturing processes?
21.3.
Identify some of the reasons why machining is commercially and technologically important.
21.4.
Name the three most common machining processes.
21.5.
What are the two basic categories of cutting tools in machining? Give two examples of machining
operations that uses each of the tooling types.
21.6.
What are the parameters of a machining operation that are included within the scope of cutting
conditions?
21.7.
Explain the difference between roughing and finishing operations in machining.
21.8.
What is machine tool?
21.9.
What is an orthogonal cutting operation?
21.10.
Why is the orthogonal cutting model useful in the analysis of metal machining?
21.11.
Name and briefly describe the four types of chips that occur in metal cutting.
21.12.
Identify the four forces that act upon the chip in the orthogonal metal cutting model but cannont be
measured directly in an operation.
21.13.
Identify the two faces that measured in the orthogonal metal cutting model.
21.14.
What is the relationship between the coefficient of friction and the friction angle in the orghogonal
cutting model?
21.15.
Describe in words what the merchant equation tells us
21.16.
How is the power required in a cutting operation related to the cutting force?
21.17.
What is the specific energy in metal machining?
21.18.
What does the term size effect mean in metal cutting?
21.19.
What is a tool-chip thermocouple?
Chapter 22 (pg 538)
22.1.
What are the differences between rotational parts and prismatic parts in machining?
22.2.
Distinguish between generating and forming when machining work part geometries.
22.3.
Give two examples of machining operations in which generating and forming are combined to create
work part geometry.
22.4.
Describe the turning process.
22.5.
What is the difference between threading and tapping?
22.6.
How does a boring operation differ from a turning operation?
22.7.
What is meant by the designation 12 x 36-inch lathe?
22.8.
Name the various ways in which a work part can be held in a lathe.
22.9.
What is the difference between a live center and a dead center, when these terms are used in the context
of work holding in lathe?
22.10.
How does turret lather differ from engine lather?
22.11.
What is a blind hole?
22.12.
What is the distinguishing feature of a radial drill press?
22.13.
What is the difference between peripheral milling and face milling?
22.14.
Describe profile milling.
22.15.
What is pocket milling?
22.16.
Describe the difference between up milling and down milling.
22.17.
How does universal milling machine differ from a conventional knee-and-column machine?
22.18.
What is a machining center?
22.19.
What is the difference between a machining center and a turning center?
22.20.
What can a mill-turn center do that a conventional turning center cannot do?
22.21.
How do shaping and planning differ?
22.22.
What is the difference between internal broaching and external broaching?
22.23.
Identify the three basic forms of sawing operation.
Chapter 24(pg 590)
24.1.
Define machinability.
24.2.
What are the criteria by which machinability is commonly assessed in a production machining
operation?
24.3.
Name some of the important mechanical and physical properties that affect the machinability of a work
material.
24.4.
Why do costs tend to increase when better surface finish is required on a machined part?
24.5.
What are the basic factors that affect surface finish in machining?
24.6.
What are the parameters that have the greatest influence in deterring the ideal surface roughness Ri in a
turning operation?
24.7.
Name some of the steps that can be taken to reduce or eliminate vibrations in machining.
24.8.
What are the factors on which the selection of feed in a machining operation should be based?
24.9.
The unit cost in a machining operation is the sum of four cost terms. The first three terms are (1)part
load/unload cost, (2)cost of time the tool is actually cutting the work, and (3) cost of the time to change the tool. What
is the fourth term?
24.10.
Which cutting speed is always lower for a given machining operation, cutting speed for minimum cost
or cutting speed for maximum production rate? Why?
Chapter 26
26.1.
Why are the nontraditional material removal processes important?
26.2.
There are four categories of nontraditional machining process, based on principal energy form. Name
the four categories.
26.3.
How does the ultrasonic machining process work?
26.4.
Describe the water jet cutting process.
26.5.
What is the difference between water jet cutting, abrasive water jet cutting, and abrasive jet cutting?
26.6.
Name the three main type of electrochemical machining.
26.7.
Identify the significant disadvantages of electrochemical machining.
26.8.
How does increasing discharge current affect metal removal rate and surface finish in electric discharge
machining?
26.9.
What is mean by the term overcut in electric discharge machining?
26.10.
Identify two major disadvantages of plasma arc cutting.
26.11.
What are some of the fuels used in oxyfuel cutting?
26.12.
Name the four principal steps in chemical machining.
26.13.
What are the three methods of performing the masking steps in chemical machining?
26.14.
What is a photoresist in chemical machining?