Michigan Machining Company machines metal parts for the automotive industry. Und
ID: 2344536 • Letter: M
Question
Michigan Machining Company machines metal parts for the automotive industry. Under the traditional manufacturing approach, the parts are machined through two processes: milling and finishing. Parts are produced in batch sizes of 60 parts. A part requires 5 minutes in milling and 7 minutes in finishing. The move time between the two operations for a complete batch is 10 minutes.Under the just-in-time philosophy, the part is produced in a cell that includes both the milling and finishing operations. The operating time is unchanged; however, the batch size is reduced to 5 parts and the move time is eliminated.
Determine the value-added, non-value-added, total lead time, and the value-added ratio under the traditional and just-in-time manufacturing methods. If required, round percentages to one decimal place.
A)
Traditional Philosophy
1. Value-added time _________ min
2. Non-value-added time ________ min
3. Total lead time _________ min
4. Value-added ratio (as a percent) _______ %
B)
Just-in-Time Philosophy
1. Value-added time _________ min
2. Non-value-added time ________ min
3. Total lead time _________ min
4. Value-added ratio (as a percent) _______ %
Explanation / Answer
Okay lets take note of all the time variable values in both scenarios. 60 part batch= 5 minutes milling, 7 minutes finishing, 10 minutes move Total 22 minutes. 5 part batch= 5 minutes milling, 7 minutes finishing, 0 minutes move Total 12 minutes. Ratios= 60:22 and 5:12 or 2.72:1 and 0.41:1 A) Traditional Philosophy 1. Value-added time ____22_____ min 2. Non-value-added time ____0____ min 3. Total lead time _____22____ min 4. Value-added ratio (as a percent) ___272____ % B) Just-in-Time Philosophy 1. Value-added time ___12______ min 2. Non-value-added time ___0_____ min 3. Total lead time ____12_____ min 4. Value-added ratio (as a percent) ___-59____ % Hope this helps, best of luck. :)