Question

Can someone help me with bumber 3? i do not know if i did it right, i also dont know how to find 3. d.

3. A production process at Kenneth Day Manufacturing is shown in the figure below. The drilling operation occurs separately from, and simultaneously with the sawing and sanding, which are independent sequential operations. A product needs to go through only one of the three assembly operations (the operations are in parallel). 60/24-25min 60/2 = 30 min Assembly 2.4 units/hr 2 units/hr 1 60/07= 0.7 units/hr Sawing Sanding 85.71min Welding Assembly 19 x 5 units/hr 0.7 units/hr Drilling 601512min 5 units/hr Assembly 60/5= 12 min 0.7 units/hr a. Which operation is the bottleneck? b. The bottleneck time is X5,7 minutes per unit (round your response to two decimal places) C. The throughput time of the overall system is 150. + minutes (round your response to two decimal places). d. If the firm operates 10 hours per day, 20 days per month, the monthly capacity of the manufacturing process is_ units (enter your response as a whole number).

Answer 1

60/24-25 min 2.4 units/hr Sawing 60/2 = 30 min 2 units/hr Sanding Assembly 0.7 units/hr 60/17= 85.71min Welding 5 units/hr 60/ 5 12min Assembly 0.7 units/hr Drilling 5 units/hr 60/5= 2 min Assembly 0.7 units/hr

Ans a- Bottleneck operation = Sanding.

Ans b- The bottleneck operation Time = 30 min.

Sanding operation cycle time = 60min/ 2 units

{Assembly is the second bottleneck as =85.71 min/ 3 units = 28.57 min. (as these are parallel operation)}

Ans c- Through put time of overall process =152.71 minutes.

Ans d- Monthly Capacity of process = 400 units

Total Available time / Bottleneck time = (20 x10 x60)/ 30 =400 units