Lab Assignment

An expensive custom$-$built product goes through two stages of operation. The first stage is an electrolytic forming process, served by two independently operating forming machines, where the product is built in a chemical operation that must conform to precise specifications. The second stage is a plating operation in which the product is silver plated. Customer orders arrive with interarrival times distributed Tria$(3,7,14)$ hours, and join a queue in front of the forming process. The electrolytic forming processing time is distributed Unif $(3,7)$ hours. The silver$-$plating process also has a queue in front of it$.$ Plating time is distributed Unif $(4,8)$ hours. The variability in the processing times is due to design variations of the incoming orders. The two processes do not perform perfectly. In fact, $15\%$ of the jobs that emerge from the forming process and $12\%$ of the jobs that emerge from the plating process are defective and have to be reworked. All defective jobs are sent to a single rework facility, where design modifications and corrections are performed manually. However, plating reworks have a lower priority than forming modifications. Plating rework times are distributed Unif $(15,24)$ hours, while forming reworks are distributed Unif $(10,20)$ hours. Jobs departing from the rework facility go back to the process they came from to redo the operation found defective. Jobs that successfully complete the plating process leave the facility. Note that a job may go back and forth between a process and the rework operation any number of times. Develop an Arena model of the electrolytic forming process, and simulate it for $1$ year $(24$ hours of continuous operation$).$ You need to do the flowing:

Analyze the system and comment on the performance measures.

Discuss the bottleneck process and is its effect considered as major or minor and why?

Is there any improvement actions required? If yes, mention some of them with clearly defining the positive and negative effects. If no improvement actions required, mention briefly why?

$($By arena$)$