A paced assembly line has been devised to manufacture calculators, as the following data show: Station S1 S2 S3 S4 S5 S6 Work Element Assigned A D, E C B, F, G H, I, J K Work Element Time (min) 2.7 0.6, 0.9 3.0 0.7, 0.7, 0.9 0.7, 0.3, 1.2 2.4 . What is the maximum hourly output rate from this line? (Hint: The line can go only as fast as its slowest workstation.) ». What cycle time corresponds to this maximum output rate? :. If a worker is at each station and the line operates at this maximum output rate, how much idle time is lost during each 10-hour shift? . What is the line's efficiency?
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- The following table shows the process times in minutes (or minutes/unit - how many minutes to process one unit) of a six-station serial production line (1-2-3-4-5-6). Station 1 2 3 4 5 6 Which station(s) is (are) the bottleneck(s)? Station 2 Station 5 Stations 3 and 4 Stations 2 and 5 Process Time (minutes/unit) 8 11 7 7 11 4A 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). Q a) is the bottleneck. 6 units/hr Sawing 2.4 units/hr Sanding Drilling 2 units/hr Welding 5 units/hr Assembly 0.7 units/hr Assembly 0.7 units/hr Assembly 0.7 units/hr OUEsplanade Marine Parts Inc. wants to produce parts in batches of 60 parts. Each part must be processed sequentially from workstation A to B. Processing Workstation Batch Size (Q) Time per Part 40 seconds A B 60 60 15 seconds a. How many seconds are required to produce the batch under the assumptions of batch processing? Round your answer to the nearest whole number. seconds b. How many seconds are required to produce the batch under the assumptions of single-piece flow processing? Round your answer to the nearest whole number. seconds C. Compare the two solutions in terms of time saved. Round your answer to the nearest whole number. Using the assumptions of -Select- processing saves seconds.
- K Borges Machine Shop, Inc., has a 1-year contract for the production of 75,000 gear housings for a new off-road vehicle. Owner Luis Borges hopes the contract will be extended and the volume increased next year. Borges has developed costs for three alternatives. They are general-purpose equipment (GPE), flexible manufacturing system (FMS), and expensive, but efficient, dedicated machine (DM). The cost data follow: Annual contracted units Annual fixed cost Per unit variable cost General-Purpose Equipment (GPE) 75,000 $100,000 $15.00 Flexible Manufacturing System (FMS) 75,000 $225,000 $14.75 Dedicated Machine (DM) 75,000 $500,000 $13.00 Based on the total cost, the process that is best suited for the current contracted volume is Suppose the contracted volume changes to 275,000 gear housings. Based on the total cost, the process that is best suited for the new volumo inDEFINE CONWIP (CONstant Work-In-Process)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). Q Q 2.1 units/hr Sawing 5 units/hr Sanding Drilling 5 units/hr a) Sawing is the bottleneck. b) The bottleneck time is minutes per unit (round your response to two decimal places). Welding 2.5 units/hr Assembly 0.8 units/hr Assembly 0.8 units/hr Assembly 0.8 units/hr
- Up, Up, and Away is a producer of kites and wind socks.Relevant data on a bottleneck operation in the shop for theupcoming fiscal year are given in the following table:Item Kites Wind SocksDemand forecast 30,000 units/year 12,000 units/yearLot size 20 units 70 unitsStandard processing time 0.3 hour/unit 1.0 hour/unitStandard setup time 3.0 hours/lot 4.0 hours/lotThe shop works two shifts per day, 8 hours per shift, 200 daysper year. Currently, the company operates four machines,and desires a 25 percent capacity cushion. How many ma-chines should be purchased to meet the upcoming year’s de-mand without resorting to any short-term capacity solutions?An assembly line has 10 serial stations with process times of 1, 2, 3, 4,..., 10 respectively. The process time of the system is: a) 550% of its process cycle time. b) 18.18% of its process cycle time. c) 50% of its process cycle time. d) 100% of its process cycle time.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). Q 2.1 units/hr Sawing 5 units/hr Sanding Drilling 5 units/hr Welding 2.5 units/hr a) Sawing is the bottleneck. b) The bottleneck time is 28.57 minutes per unit (round your response to two decimal places). c) The throughput time of the overall system is minutes (round your response to two decimal places). Assembly 0.8 units/hr Assembly 0.8 units/hr Assembly 0.8 units/hr
- Dr. Lori Baker, operations manager at Nesa Electronics, prides herself on excellent assembly line balancing. She has been told that the firm needs to complete 96 instruments per 24-hour day. The assembly-line tasks for the production of the instrument are: Task Time (minutes) Predecessors A 3 ---- B 6 ---- C 7 A D 5 A, B E 2 B F 4 C G 5 F H 7 D, E I 1 H J 6 E K 4 G, I, J Draw the precedence diagram If the daily production (24-hour) production rate is 96 units, what is the highest allowable cycle time? If the cycle time after allowances is given as 12 minutes, what is the daily (24-hour) production rate? With a 12-minute cycle time, what is the theoretical minimum number of stations with which the line can be balanced? Assign task to workstations. Use the following decision rules (heuristics): longest task first, break ties by assigning the task with the most followers. What are the efficiency and the balance delay of the assembly line? Show detil of…(a) T. Smunt Manufacturing Corp. has the process displayed below. The drilling operation occurs separately from and simultaneously with the sawing and sanding operations. The product only needs to go through one of the three assembly operations (the assembly operations are "parallel"). ASSEMBLY SAWING SANDING 78 min/unit 15 min/unit 15 min/unit WELDING ASSEMBLY DRILLING 25 min/unit 78 min/unit 27 min/unit ASSEMBLY 78 min/unit 1. Which operation is the bottleneck? 2. What is the throughput time for the overall system? 3. If the firm operates 8 hours per day, 22 days per month, what is the monthly capacity of the manufacturing process? 4. Suppose that a second drilling machine is added, and it takes the same time as the original frilling machine. What is the new bottleneck time of the system? 5. Suppose that a second drilling machine is added, and it takes the same time as the original drilling machine. What is the new throughput time?Dave Grubbs of Grubbs Auto Body has five cars waiting for Economy Detailing. An Economy Detailing consists of a wash and then a hand wax. Cars cannot be waxed until they are washed. ROUND UP (39/5) & (39/10). Wash (hours) Wax (hours) (J)aguar 39/5 5 (C)adillac 5 3 (F)ord 1 39/10 (H)onda 2 1 (L)exus 4 4 What schedule produces the shortest time span in which these orders can be completed? Sequence: ____ , _____ , _____ , ______ , ______ Create a Gantt chart for the optimal sequence (shortest time span). How many hours does it take to complete the five orders? For the schedule in question “a”, how many hours is the waxing task idle? When will Dave finish the Cadillac? What is the average order completion time?