Friday, March 18, 2011

030070008 Bahadır Coşkun (6th Week)

Machine cell design (18.03.2011 15:00)

Design of the machine cell is critical in cellular manufacturing. The cell design determines
to a great degree the performance of the cell. In this subsection, we discuss types of machine
cells, ceJllayouts, and the key machine concept.

Types of Machine Cefls and Layouts. GT manufacturing cells can be classified according to the number of machines and the degree to which the material flow is mechanized between machines. In our classification scheme for manufacturing systems (Section 13.2), all GT cells are classified as type X in terms of part or product variety (Section 13.2.4, Table 13.3). Here we identify four common GT cell configurations (with system type identified
in parenthesis from Section 13.2):
1. single machine cell (type I M)
2. group machine cell with manual handling (type n M generally, type III M less common)
3. group machine cell with semi-integrated handling (type II M generally, type III Mless common)
4. flexibie manufacturing cell or flexible manufacturing system (type IT A generally, type III A less common)
(Groover P.M., Automation, Production Systems, and Computer-Integrated Manufacturing, 2nd Edition, p.435-436)

Human Labor
(18.03.2011 15:15)

One additional component in the FMS is human labor. Humans are needed to manage the operations of the FMS. Functions typically performed by humans include: (1) loading raw workparts into the system, (2) unloading finished parts (or assemblies) from the system. (3) changing and setting tools. (4) equipment maintenance and repair, (5) NC part programming in a machining system, (6) programming and operating the computer system, and (7) overall management of the system.
(Groover P.M., Automation, Production Systems, and Computer-Integrated Manufacturing, 2nd Edition, p.479)

Decision Matrix
(20.03.2011 15:08)

We can use a simple matrix to outline the basics of information processing. The decision matrix (or table) is simply a chart that provides a useful visual reference. The rows and columns represent decision dimensions and
alternatives respectively. With this simple matrix, we can explore the various search patterns of decisions makers. We can also compare the dynamics of the models. For instance, we can show how a rational process could lead to a different choice than would a cognitive process.
(
Mintz A., Deouren K., Understanding Foreign Policy Decision Making, 2010, p. 88)

Patent (20.03.2011 15:17)


Patent means an official document giving the holder of the patent sole right to make, use or sell an invention ad preventing others from imitating it. Patents are generally granted to "inventions". Inventions include both tangible products as well as processes. A person owning a patent over a certain product of process has the sole right to use the product or process.
(Sople V. V., Managing intellectual property: the strategic imperative, 2006, p.74)

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