Automation, Production Systems, And Computer-Integrated Manufacturing 4th. Edition by Groover, Mikell P | 9789332572492 | 9332572496 | Holooly

Mechanical Engineering

Automation, Production Systems, And Computer-Integrated Manufacturing

100 SOLVED PROBLEMS

Question: 25.4

Inventory Holding Cost for WIP During Manufacturing The cost of the raw material for a certain part is $100. The part is processed through 20 processing steps in the plant, and the manufacturing lead time is 15 wk. The production time per processing step is 0.8 hr, and the machine and labor rate is ...

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The material cost, operation costs, and nonoperati...

Question: 18.1

Rank-order Clustering Technique Apply the rank-order clustering technique to the part-machine incidence matrix in Table 18.3. ...

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Step 1 consists of reading the series of 1s and 0s...

Question: 26.1

Effect of Setup Reduction on EOQ and Inventory Cost What is the effect of reducing setup time on economic batch size and total inventory costs in Example 25.3 in the previous chapter? In that example, annual demand = 15,000 pc/yr, unit cost = $20, holding cost rate = 18%/yr, setup time = 5 hr, and ...

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First, recall the results of the earlier example. ...

Question: 26.2

Takt Time The monthly demand for a certain part is 10,000 units. There are 22 working days in the month. The plant operates two shifts, each with an effective operating time of 440 min. Determine the takt time for this part. ...

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With two shifts, the effective daily operating tim...

Question: 25.3

Economic Order Quantity Formula The annual demand for a certain item made-to- stock = 15,000 pc/yr. One unit of the item costs $20.00, and the holding cost rate = 18%/yr. Setup time to produce a batch = 5 hr. The cost of equipment downtime plus labor = $150/hr. Determine the economic batch quantity ...

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Setup cost

C_{su} = 5 × \$150 = \$750[/late...

Question: 25.2

MRP Time-Phased Quantity Requirements To illustrate these various complicating factors, consider the MRP procedure for component C4, which is used in product P1. This part also happens to be used on product P2 of the master schedule in Figure 25.2. The product structure for P2 is shown in ...

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The results of the MRP calculations are given in F...

Question: 25.1

MRP Gross Quantity Computations In the master schedule of Figure 25.2, 50 units of product P1 are to be completed in week 8. Explode this product requirement into the corresponding number of subassemblies and components required. ...

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Referring to the product structure in Figure 25.4,...

Question: 24.1

Make or Buy Cost Decision The quoted price for a certain part is $20.00 per unit for 100 units. The part can be produced in the company’s own plant for $28.00. The cost components of making the part are as follows: ...

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Although the vendor’s quote seems to favor a buy d...

Question: 23.1

Quality Function Deployment: House of Quality A new product design project is just getting started. It deals with a toy for children aged 3 to 9 that could be used in a bathtub or on the floor. It is desired to construct the house of quality for such a toy (the initial matrix in QFD), first listing ...

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The first phase of the QFD analysis (the house of ...

Question: 22A.2

Determining the Center and Diameter of a Drilled Hole Three point locations on the surface of a drilled hole have been measured by a CMM in the x–y axes. The three coordinates are (34.41, 21.07), (55.19, 30.50), and (50.10, 13.18) millimeters. The given coordinates have been corrected for probe ...

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To determine the coordinates of the hole center, t...

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