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, CHAPTER 1
Introduction to DeGarmo’s Materials and Processes in Manufacturing
Review Questions
1. The availability and cost of manufactured products are an important part of our cost
of living and the real wealth of the nation. Thus, reducing the cost of producer and
consumer goods improves the productivity while holding down inflation, thereby
improving the general standard of living.
2. This is true if you consider that everyone who uses the output from a process,
including all the intermediate steps, is a customer. The operator of the next process is the
user and customer of the proceeding process. In fact, some companies identify two
customers, the external customer who buys the finished product and the internal
customer, who builds the product one - i.e., the people who work in the manufacturing
system.
3. Job shop - an injection mold manufacturing shop, the shop at a large university that
produces research equipment and apparatus. Job shops are capable of producing products
with great variety, typically employing highly skilled workers.
Flow shop – automobile assembly. Flow shops are usually laid out so that specific
products pass through a series of operations with no backflow. The product range is
limited, production volume is large and labor skill is lower than in job shops.
Project shop – diesel-electric locomotive production facility. The end product is very
large and so many machines, tools and people come to the product to produce it at a
relatively fixed location.
The Subway sandwich shop would be a flow shop.
4. In the context of manufacturing, a manufacturing system is a collection of men,
machine tools, and material-moving systems, collected together to accomplish specific
manufacturing or fabrication sequences, resulting in components or end products. The
manufacturing system is backed up by and supported by the production system, which
includes functions like control of quality, inventory, production, and manpower, as well
as scheduling, planning and the like. Within the manufacturing system, there will be
machine tools, which can perform jobs or
5. No. The cutting tool is the implement that does the cutting. It contains the cutting
edge and is used in the machine tool. The machine tool drives the cutting tool through
the work material.
6. The basic manufacturing processes are: casting or molding, forming, (heat)
treating, metal removal, finishing, joining (welding), assembly, and inspection.
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