EBK MANUFACTURING ENGINEERING & TECHNOL
7th Edition
ISBN: 8220100793431
Author: KALPAKJIAN
Publisher: PEARSON
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Textbook Question
Chapter 39, Problem 4RQ
What are the benefits of just-in-time production? Why is it called a pull system?
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3.3 How does an automated assembly operate with a minimum of manual labor involvement?How is data collected and recorded during an automated manufacturing process?
A product whose total work content time = 50 minutes is to be assembled on a manual production line. The required production rate is 30 units per hour. From previous experience with similar products, it is estimated that the manning level will be close to 1.5. Assume E = Eb = 1.0. If 9 seconds will be lost from the cycle time for repositioning, determine:
The cycle time, and
How many workers and
Stations will be needed on the line.
What is the production system? Explain the
different types of production systems.
Chapter 39 Solutions
EBK MANUFACTURING ENGINEERING & TECHNOL
Ch. 39 - What is a manufacturing cell? Why was it...Ch. 39 - Describe the basic principle of flexible...Ch. 39 - Why is a flexible manufacturing system capable...Ch. 39 - What are the benefits of just-in-time production?...Ch. 39 - Prob. 5RQCh. 39 - What is an expert system?Ch. 39 - What are the advantages of a communications...Ch. 39 - What is MTConnect?Ch. 39 - What is a WLAN? a PAN?Ch. 39 - Describe your understanding of holonic...
Ch. 39 - What is Kanban? Explain.Ch. 39 - What is lean manufacturing?Ch. 39 - What is a push system?Ch. 39 - In the lean manufacturing concept, what is the...Ch. 39 - Prob. 15RQCh. 39 - In what ways have computers had an impact...Ch. 39 - What advantages are there in viewing...Ch. 39 - One restaurant makes sandwiches as they are...Ch. 39 - Discuss the benefits of computer-integrated...Ch. 39 - (a) Why is just-in-time production required in...Ch. 39 - Prob. 21QLPCh. 39 - Give an example of a push system and of a pull...Ch. 39 - What is fuzzy logic? Give three examples where...Ch. 39 - What are the advantages to having level...Ch. 39 - Is there a minimum to the number of machines in...Ch. 39 - Are robots always a component of an FMC? Explain.Ch. 39 - Are there any disadvantages to zero...Ch. 39 - Review Table 36.1 and identify the points that...Ch. 39 - Give examples in manufacturing processes and...Ch. 39 - What types of (a) products and (b) production...Ch. 39 - Describe your opinions concerning the...Ch. 39 - Can a factory ever be completely untended?...Ch. 39 - Assume that you own a manufacturing company andyou...Ch. 39 - How would you describe the benefits of FMS to an...Ch. 39 - Artificial neural networks are particularly useful...Ch. 39 - Prob. 37SDPCh. 39 - Evaluate a process from a lean-production...Ch. 39 - Pull can be achieved by working with one supplier...Ch. 39 - Prob. 40SDP
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- An assembly line running at 2000 hours/year is required to meet the annual demand of 50000 units. The total work content time = 45 min and the manning level is 1. Assuming line efficiency of 0.90 and balancing efficiency of 0.80; determine: (a) the number of work station required to meet the annual demand, and (b) the number of workers required to meet the annual demand if repositioning time of 15 sec is considered in part (b).arrow_forwardSuppose that a company has determined that a 75% experience curve accurately describes the evolution of its production costs for a new line. If the first unit costs $400 to produce, what should the 10,000th unit cost based on the experience curve?arrow_forwardWhat are the advantages and disadvantages of producing new products in existing facilities?arrow_forward
- Elaborate with examples, The Importance of Machines in human Life.arrow_forwardA company designs and builds cruise ships for the luxury market. Which process type does it apply? O Mass O Jobbing Batch Projectarrow_forwardThere are four distinct categories that can be used to classify production systems. A concise explanation and example are provided for each of these categories in turn.arrow_forward
- Suppose your company has just found $100,000 worth of outdated inventory in an old warehouse (this is the original manufacturing cost). Your boss asks you to consider two options: (1) re-engineer the outdated parts at a cost of $30,000, and ideally resell them for $60,000, or (2) scrap them for $15,000 cash (which is certain) in a second-hand market. What advice would you give your boss? Explain in your own words and give the data that supports your answer.arrow_forwardIn a factory where there are three shifts: The machine overhead cost is found to be £8.20 / hr, the labour overhead cost is found to be £30.20/hr, and the premises overhead cost is found to be £3.50/hr. Using the principle of overhead costing: If a single component takes 23 minutes to manufacture on the milling machine. What is the cost / part? You should include machine costs, labour costs and premises costs in your answer, but you can neglect material and energy costs. Express your answer in £ rounded up to the nearest penny.arrow_forwardA final assembly plant for a certain automobilemodel is to have a capacity of 240,000 units annually.The plant will operate 50 wk/yr, 2 shifts/day, 5 days/wk, and 8.0 hr/shift. It will be divided into three departments: (1) body shop, (2) paint shop, (3) trim-chassis-final department. The body shop welds the car bodies using robots, and the paint shop coats the bodies. Both of these departments are highly auto-mated. Trim-chassis-final has no automation. There are 15.5 hr of direct labor content on each car in this department, where cars are moved by a continuous conveyor. Determine (a) hourly production rate ofthe plant, (b) number of workers and workstations required in trim-chassis-final if no automated stations are used, the average manning level is 2.5, balancing efficiency 1⁄4 93%, proportion uptime 1⁄495%, and a repositioning time of 0.15 min is allowedfor each worker.arrow_forward
- What exactly do you mean by a production system?arrow_forward(a) There are several reasons why a certain manufacturing process is selected. Explain how time-scale allowed for design and manufacture can influence selection of a manufacturing process. Give one example. (b) Explain how flexibility in production can become an important manufacturing process requirement. Give one example.arrow_forwardDiscuss what would likely happen if a needed sscrew or a working tool is missing from a traditional mass production line.arrow_forward
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