Question

A 23-station transferline has been logged for 5 days (a total of 2400 min). During this time, there were a total of 158 down-time occurrences on the line. The accompanying table identifies the type of down-time occurrence, how many occurrences, and how much total time for the type of occurrence Page 56 of 105 Dr Yousef Amer - School of Engineering University of South Australia Type of occurrences Number of occurrences Total minutes lost Tool-related causes at stations 520 104 Mechanical failures at stations 21 189 Other miscellaneous stations failures 84 Associated with transfer mechanism 26 78 The transfer line performs a sequence of machining operations, the longest of which takes 0.42 min. The transfer mechanism takes 0.08 min to index a part from one station to the next position. Assuming no parts removal when the line jams, determine the following characteristics for this line for the 5-day period a) How many parts are produced b) Downtime proportion. c) Production rate and production time d) Frequency rate p associated with the transfer mechanism breakdowns

Answer 1

dad hV

mlucti te 2min chana

32-30 min