Chapter 11 i Saved Help Save & Exit Check Tombro Industries is in the process of automating one of its plants and developing a flexible manufacturing system. The company is finding it necessary to make many changes in operating procedures. Progress has been slow, particularly in trying to develop new performance measures for the factory points In an effort to evaluate performance and determine where improvements can be made, management has gathered the following data relating to activities over the last four months: Month eBook 197 58 175 51 136 42 93 39 Print 8 days 7 days 5 days 4 days 223 References Quality control measures! Number of detects Number of warranty elaine Number of customer complaints Material control measures: Purchase order lead tine Scrap as a percent of total cost Machine performance measuresi Machine downtine as a percentage of availability Use as a percentage of Availability Setup A [hour) Delivery performance measures: Throughput time Manufacturing eyele efficiency (MCE) Delivery cyele time Percentage of on-tine deliveries 94% 8 91% 10 88% 11 849 12 The president has read in industry journals that throughout time, MCE, and delivery cycle time are important measures of performance, but no one is sure how they are computed. You have been asked to assist the company, and you have gathered the following data relating to these measures: Average per Month in days) Wait tinc per order before start at production Iaspection time per unit Process tine per unit Queue time per unit Nove tine per unit 10.0 0.0 2.8 3.1 12.3 0.2 2.4 5.2 13.0 0.2 2.2 6.7 15.0 0.7 1.1 8.6 Required: 1-a. Compute the throughout time for each month. 1-b. Compute the manufacturing cycle efficiency (MCE) for each month. 1-c. Compute the delivery cycle time for each month. 3-a. Refer to the inspection time, process time, and so forth. given for month 4. Assume that in month 5 the inspection time, process time, and so forth, are the same as for month 4, except that the company is able to completely eliminate the queue time during production using Lean Production. Compute the new throughput time and MCE. 3-6. Refer to the inspection time, process time, and so forth, given for month 4. Assume that in month 6 the inspection time, process time, and so forth, are the same as in month 4, except that the company is able to climinate both the queue time during production and the inspection time using Lean Production. Compute the new throughput time and MCE
