Ex_2.pdf

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EXERCISE 2 – Hardening Operation –
Grouping of Entities
Please create a new model to produce 100 parts of the Gear 1, and optimize the arrival
parameters assuming a batch size of 5. The technological operations are defined below.
Part number
13
Part name
Gear 1
Material
40H
Operation #
Work station
run time
setup time
[h]
[h]
10
Saw
0.03
0.15
20
Lathe
0.15
0.45
30
Hobbing
machine
0.48
0.6
40
Drill
Press
0.2
0.23
50
Broaching
machine
0.2
0.25
60
Hardening
station
2
0.5
70
80
Modelling Instructions:
1. Scale your model by changing the Grid settings such that the distance of the major gird
lines equals one meter (machines are spaced maximum two meters apart)
2. Besides the Input and Output create two additional Locations: an Input Buffer and an
Output Buffer (at the Hardening station) with a capacity of 5 using the Rule First In,
First Out (FIFO)
3. Create two entities
gear
and
group_gear
4. Use two workers one for processing operations and one responsible for transport
operations only
5. At the hardening operation (#60) use the logic order
WAIT
(for technological
operations not using a resource)
6. At the other machining Locations:
USE
resource name
FOR
time value
7. At the Input and Output Buffer use the logic order
GROUP
and
UNGROUP
respectively as indicated below. (Group 5 gears together)
Entity
Entity X
Process
Station
Buffer A
Hardening
Station
Buffer B
Buffer B
Operation
Output
EntityY
Routing
Destination
Rule
Hardening Station
First 1
Move Logic
MOVE WITH
resource name
THEN FREE
MOVE WITH
resource name
THEN FREE
-
GROUP
number of
elements
WAIT
run time
UNGROUP
Entity Y
Entity Y
Entity X
EntityY
Buffer B
First 1
-
-
-
Process continuation …

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