Production and Operation Management - 657 Words

生ç” ¢Ã¨Ë†â€¡Ã¤ ½Å"æ ¥ ­Ã§ ® ¡Ã§ â€ Ã¦Å"ŸæÅ" «Ã¥   ±Ã¥â€˜Å  Case Study: Hot Spot Plastics Company 0013142é™ ³Ã¥â€œ Ã§ ¿â€ 0013116Ã¥ »â€"å†  Ã¥â‚¬ « 0013148 é‚ ±Ã¨ â€"å‡ ± 0013151 æžâ€"æ ¢â€œÃ¦ ´â€¹ PARTâ…   Company introduction: Hot Shot Plastics Hot Shot Plastics, Inc. filed as an Articles of Incorporation in the State of California and is no longer active. This corporate entity was filed approximately fourteen years ago on Monday, June 05, 2000, according to public records filed with California Secretary of State. Products: Manufactures processed plastics Plastic cutting machinery, Plastic grinding machinery, Rubber or plastic mills, Rubber or plastic extrusion dies, Plastic injection molds, Thermoforming molds, Ejector pins, In mold decoration IMD cylinder, Blow molding machines, Coating machines, Extruders. PARTâ… ¡ Case†¦show more content†¦Solution: Exhibit 1 and 2 shows the XÌ…-chart and R-chart with a plot of all sample means and ranges of the samples. All the points are well within the control limits, although sample 24 is close to the XÌ… lower control limit and samples 17 through 22 are above the target. 3. Twelve additional samples of curetimes data from the molding process were collected from an actual production run. The data from these new samples are shown before. Update your control charts and compare the results with the previous data. The XÌ…- and R-chart are drawn with the new data using the same control limits established before. Comment on what the new charts show. Solution: Exhibit 3 and 4 shows the XÌ…-chart and R-chart with a plot of all (includes previous and new) sample means and ranges of the samples. The previous data shows the curetime during the molding process is stable and under control. In contrast, the additional data is out of control, and considerable fluctuation in the data. In this statistical process control, we set control limits three standard deviations above the mean and three standard deviations below. This mean that 99.7 percent of the sample means are expected to fall within these process control limits. Thus, if one sample falls outside this obviously wide range, we have strong evidence that the process is out of control. The data from new samples show the present process is out of controlShow MoreRelatedProduction And Operations Management : Production Management Essay941 Words   |  4 Pagesused in the production/operations subsystem of the organization into value added product/services in a controlled manner as per the policies of the organization, is the definition of Production/operations management. Consequently, it is that part of an organization, this part is involved in the transformation of a range of inputs, like men, material, machines, information and capital, into the required (products/services), with the requisite quality level. 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