Development of production standards in the melting liners
The authors of this QUEST presentation worked with supervisor at a localmanufacturer, Fireline. This study was done for credit in the methods engineering class as a part of the Industrial and Systems Engineering program. Motion and time study analysis were performed using the techniques of video capture of theprocess, analysis of the fundamental motions and establishment of standard times using both classic and predetermined time study procedures. Work sampling techniques were used to help characterize the non-repetitive work content associated with a highly coupled man-machine process. The analysis that was done on the subject and the surrounding operations were characterized throughmethods engineering tools, such as, man-machine process charts, flow charts, and plant diagrams.
Change GlovesA graphical display of time spent Grab Partfor each from the Time Study PutData displays the operator Scrapespends a fair percentage of the Blowtime scraping. Place Start
Normal TimeNT= OT x R/100NT= (113.51) x (95)/100NT= 107.83 secStandard TimeST= NT x (1 + Allowance)ST=(107.83) x (1 + (.12))ST=120.77 sec**In a normal 8hr work day each worker should beexpected to produce about 210 liners each day.
This chart shows all movements of the process made by the left and right hands and the relationship between them. This chart facilitates changing method so that balance two-handed operation can be achieved for a smoother rhythmic cycle and keeps the operator fatigue to a minimum.Left Hand Description Symbol Time Time Symbol Right Hand DescriptionGrab Part RE/G 3.223 3.223 RE/G Grab partSet Part Down M/P 1.596 1.596 M/P/RL Set Part DownTurn Liner H 14.33 2.548 RE/G Grab Knife 8.858 U Scrape 1.218 RL Put Knife Down 0.306 RE/G Grab Blowing Tool 1.1 U Blow 0.3 RL Put Blowing Tool DownGrab Finished Part G 1.501 1.501 RE/G Grab Finished PartPlace Finished Part M/P/RL 1.356 1.356 M/P/RL Place Finished Part
Left Hand Description Symbol TMU TMU Symbol Right Hand DescriptionReach for Part RB12 12.9 12.9 RB12 Reach for PartGrab Part G1C1 7.3 7.3 G1C1 Grab PartMove Part MC30 30.7 30.7 MC30 Move PartSet Part Down RL1 2 2 RL1 Set Part DownTurn Liner T 9.4 8.6 RB6 Reach for Knife 3.5 G1B Grab Knife 10.6 APA Scrape 2 RL1 Put Knife Down 8.6 RB6 Reach for Blowing Tool 3.5 G1B Grab Blowing Tool 5.6 G3 Blow 2 RL1 Put Blowing Tool Down 8.6 RB6 Reach for Finished PartGrab Finished Part G1C1 7.3 7.3 G1C1 Grab Finished PartMove Finished Part MC30 30.7 30.7 MC30 Move Finished PartSet Finished Part Down RL1 2 2 RL1 Set Finished Part DownTotal 102.3 145.9 Total
Left Hand Description Symbol TMU TMU Symbol Right Hand DescriptionGrab Part GA 9 9 GA Grab partSet Part Down PA 20 20 PA Set Part DownTurn Liner GC 27 6 GA Grab Knife 23 GC Scrape 6 PA Put Knife Down 6 GA Grab Blowing Tool 3 GA Blow 6 PA Put Blowing Tool DownGrab Finished Part GA 9 9 GA Grab Finished PartPlace Finished Part PA 20 20 PA Place Finished PartTotal 85 108 Total
Freivalds, Andris. Niebel’s Methods, Standards, and Work Design. 12th. New York: McGraw-Hill Companies, 2009. Print.Timer Pro Professional website, Applied Computer Services, Inc., http://www.asco.com, Spring 2012.