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 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: 115 Month Quality control measuresi 2 3 Number of defects Number of warranty claims 198 176 137 98 Number of customer complaints 59 52 43 40 Material control measures: 109 92 71 Purchase order lead time Scrap as a percent of total cost 10 days 9 days 7 days 5 days Machine performance measures: 18 14 25 34 Machine downtine as a percentage of availability 44 Use as a percentage of availability 50 SU 89 Setup time (hours) 954 92% 894 854 Delivery performance measures: 10 12 13 14 Throughout time 7 Manufacturing cycle efficiency (MCE) 2 7 ? 7 Delivery cycle time ? ? ? Percentage of on-tine deliveries 964 95 924 894 The president has read in industry Journals that throughput 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) 2 3 4 Wait time per order before start of production 9. 11.2 14.0 Inspection time per unit 0.9 0.8 0.8 0.8 Process time per unit 2.8 2.7 2.4 1.1 Queue tine per unit 3.9 4.7 Move tine per unit 5.2 8.4 0.4 0.6 0.6 0.7 12.0 Required: 1-a. Compute the throughput 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 eliminate both the queue time during production and the inspection time using Lean Production Compute the new throughput time and MCE. Complete this question by entering your answers in the tabs below. Required Required 3 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, (Round your answers to 1 decimal place.) Show less Month 1 Month 2 Month Month 4 Throughput Time days days Manufacturing Cycle Efficiency (MCE) % % % % Delivery Cycle Time days days days days day days Required 3 > Complete this question by entering your answers in the tabs below. Required 1 Required 3 3-a. (Month 5) 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-b. (Month 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 eliminate both the queue time during production and the inspection time using Lean Production Compute the new throughput time and MCE. (Round your answers to 1 decimal place.) Show less Month 6 Throughout time Manufacturing cycle officiency (MCE) Month 5 days days %
