Ch. 5 Flashcards
Cost reduction
A way to reduce
Done on a plant layout to show the path to a part from beginning to end from fabrication to shipping
Flow diagram
Graphical representation of a manufacturing operation used to make a product, and every -/,job and part needed
Operations chart
Process chart
Graphical representation of the work that is performed on a work piece during an operation.
Flow process chart
Process ch. symbols circle. Square. Arrow, triangle, D
Operation, inspection transportation, storage, delay
W collection of equipment made to make a complicated part, usually in a u shape.
Work cell
Work cell values
Operator and ultizalation. Rather than machines
Operation steps
https://www.yourarticlelibrary.com/industrial-engineering-2/operation-process-and-flow-process-chart-with-diagram/90465
Symbols for work cell
normal line for manual time. dots for machine time. squiggly for walk time
Total cycle time
Manual time + walk time. Does not include machine time
how to find pieces per hour in a work cell
Total cycle time/60
Used to communicate the routing instructions to show the exact sequence of operation needed to complete a job
Route sheet
Route sheet shows
Part name, part description, quantity, machine names
Single unity of production
Activity
Smallest unit of work. Cannot be divided. can be measured with a stopwatch.
Element
Multiple elements
Activity
Used to describe a single activity
Operation analysis chart
Used when one operator working on multiple machines
Multi machine chart. Can show how much machines are needed
Used to show when two or more operators are working together
Can be used for when an operator and machine
Is similar to gang ch but is for one operator.
Left hand right hand ch. each hand si treated as activities. Which hand has idle time, which is holding a part
Evaluates human efforts and fatigue. Important for body parts are being used
SIMO chart.
Operation Chart visual steps
- list operations. 2. operation number. 3. 4. lists processes (clean, paint). 5. repeat steps. 6 connect parts to assembly. 7. introduce purchased items. 8-9. add information
ask why, what, wehn, how. for operation, transportation, inspection, storage, delay
Cost reduction formula questions
details how a part is produced from the part from the assembly line to shipping
proccess chart
units of work that are usually indivisuable and can be measured with a stopwacth
elements
the end of a element on a stopwatch
Break point
the 4 concerns of flow diagram
Traffic (where lines cross), Going backwards( cost _ times as forward motion), Procedure, distance traveled
Jobs can be grouped into 4 different categories
- indiduals working with tools. 2. indiduals workign with machines 3. indiviuals working with multi-machine 4. multiple people working together.
Breaks apart these hands which have different activities. useful for showing which hand is active and which is idle.
Left/rigth chart
What parts of the body are most useful in a simo chart
finger and hand
shows two people working
Gang chart
Is right side of operation anaylsis used for current activities.
no, only used after time study.
Is used to show what operation are being done to a part
Flow Proccess chart
When some parts slow together before the assembly line
subassembly
