92
6 Engineering Applications of Facility Layout
Table 6.5 Specifications of machines for production of wheel arm brackets
Machine
Clearance
Clearance
Total
Total
number
Length
Width
length
width
length
width
Area
1
20
15
15
10
35
25
875
2
20
15
15
10
35
25
875
3
25
20
15
10
40
30
1200
4
30
25
15
10
45
35
1575
5
30
25
15
10
45
35
1575
6
10
10
15
10
25
20
500
7
25
20
15
10
40
30
1200
8
10
10
15
10
25
20
500
Observe that Component 1 is processed on all eight machines, while Component
2 is processed on six of the eight. However, the order in which these operations
are to be carried out is not specified. By fixing different orders for the operations,
different instances can be obtained, and in general their optimal layouts will differ.
Note also that the dimensions of the facility are not provided. Different instances
can be obtained by specifying these dimensions, or alternatively by leaving them to
be determined by the optimization.
6.4 Shoe Manufacturing
In this section, we present an application from shoe manufacturing. Table 6.6
describes the processes in shoe production. Each process is subdivided into several
steps, and each step is carried out at a workstation. The detailed production flow
involves 2 warehouses and 52 workstations. The flows between workstations are
given in Table 6.7. In this table, an entry of the form (23, 24) 26200 is interpreted as
Table 6.6 Process names and descriptions
Process number
Name
Definition
1
Clicking
The skins, hides, or man-made materials are cut into the
shoe upper sections
2
Closing
The upper sections are stitched together to create the upper
3
Bottom-stock
The bottom components (such as soles and insoles) are cut
and prepared
4
Lasting
The assembled uppers are gathered onto the last, and the
upper is attached to the insole
5
Making
The heels and soles are attached to the lasted shoe
6
Finishing
Various operations such as bottom securing and edge
trimming improve the durability and appearance of the
shoe
6 Engineering Applications of Facility Layout
Table 6.5 Specifications of machines for production of wheel arm brackets
Machine
Clearance
Clearance
Total
Total
number
Length
Width
length
width
length
width
Area
1
20
15
15
10
35
25
875
2
20
15
15
10
35
25
875
3
25
20
15
10
40
30
1200
4
30
25
15
10
45
35
1575
5
30
25
15
10
45
35
1575
6
10
10
15
10
25
20
500
7
25
20
15
10
40
30
1200
8
10
10
15
10
25
20
500
Observe that Component 1 is processed on all eight machines, while Component
2 is processed on six of the eight. However, the order in which these operations
are to be carried out is not specified. By fixing different orders for the operations,
different instances can be obtained, and in general their optimal layouts will differ.
Note also that the dimensions of the facility are not provided. Different instances
can be obtained by specifying these dimensions, or alternatively by leaving them to
be determined by the optimization.
6.4 Shoe Manufacturing
In this section, we present an application from shoe manufacturing. Table 6.6
describes the processes in shoe production. Each process is subdivided into several
steps, and each step is carried out at a workstation. The detailed production flow
involves 2 warehouses and 52 workstations. The flows between workstations are
given in Table 6.7. In this table, an entry of the form (23, 24) 26200 is interpreted as
Table 6.6 Process names and descriptions
Process number
Name
Definition
1
Clicking
The skins, hides, or man-made materials are cut into the
shoe upper sections
2
Closing
The upper sections are stitched together to create the upper
3
Bottom-stock
The bottom components (such as soles and insoles) are cut
and prepared
4
Lasting
The assembled uppers are gathered onto the last, and the
upper is attached to the insole
5
Making
The heels and soles are attached to the lasted shoe
6
Finishing
Various operations such as bottom securing and edge
trimming improve the durability and appearance of the
shoe