Question

Compute Lead Time Jackson Fabricators Inc. 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 40 parts. A part requires 6 minutes in milling and 8 minutes in finishing. The move time between the two operations for a complete batch is 5 minutes. Under the lean 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, and total lead times, and the value-added ratio under the traditional and lean manufacturing methods. If required, round percentages to one decimal place. Traditional Philosophy Lean Manufacturing Philosophy Value-added time fill in the blank 1 min fill in the blank 2 min Non-value-added time fill in the blank 3 min fill in the blank 4 min Total lead time fill in the blank 5 min fill in the blank 6 min Value-added ratio (as a percent) fill in the blank 7 % fill in the blank 8 %

Answer 1

Answer: See explanation

Step-by-step explanation:

Traditional philosophy:

Value added time = 6 + 8 = 14

Non-value-added time = 14 × (40-1) + 5 = 551

Total lead time = 14 + 551 = 565

Value-added ratio (as a percent) = 14/565 × 100 = 2.48%

Lean Manufacturing Philosophy:

Value added time = 14

Non-value-added time = 14 × (5-1) = 56

Total lead time = 14 + 56 = 70

Value-added ratio (as a percent) = 14/70 × 100 = 20%