Problem 3: The back case for a tablet is injection molded using PC-ABS. (a) Estimate the material cost per case. Assume

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Problem 3 The Back Case For A Tablet Is Injection Molded Using Pc Abs A Estimate The Material Cost Per Case Assume 1 (61.91 KiB) Viewed 18 times

Problem 3: The back case for a tablet is injection molded using PC-ABS. (a) Estimate the material cost per case. Assume that 25% of the material is wasted, the case is 50 grams, and the current pricing of this PC-ABS blend for all production volumes is 3 $/kg. (b) If the cost of the aluminum mold for the back case is 6,000 USD. The mold has a lifetime of 13,000 parts. What is the unit tooling cost per case to make 26,000 cases? (c) Steel molds can produce up to 100,000 parts over their lifetime. Calculate the maximum cost of a steel mold for it to be preferred over an aluminum mold for a production volume of 50,000 parts. The lifetime and cost of an aluminum mold are 13,000 cycles and $6,000 respectively. (d) Estimate the number of injection molding machines required for the production of 95,000 cases per month and the respective unit equipment cost of manufacturing the back case. For this calculation, assume that: The cycle time for injection molding the back case is 1 minute. The machine has 85% uptime (with 24-hour operation). These machines are purchased for a dedicated facility and you have to purchase an integer number of machines. The purchase cost of a single machine is 35,000 USD The write-off period (lifetime) of the machine is 10 years. (e) A single worker can oversee up to four machines simultaneously and the effective labor cost (including benefits and taxes) is 65 USD/hr. The facility and energy (i.e., all other overhead contributions) cost 7 USD/hour per machine. Estimate the associated unit cost of overhead for an annual production of 1.14 million back cases. Assume that each worker is on the job 24 hours a day, cannot be hired part-time, and cannot be used for any other activity. The factory uses three dedicated machines.