Product lay-out - assembly line balancing
5 important questions on Product lay-out - assembly line balancing
Through which 5 stept do you balance a (paced) line in practice?
- All manual labor divided in standard moves, to which standard times are assigned
- (e.g. Grasping, transporting, assembling)
- From rough to detailed division of all activities needed to realize the product
- (process charts and flow charts: Ch. 7!)
- Detail layout for each workplace
- using Left Hand - Right Hand charts
- Trial runs for debugging
- Continuous improvement
What are the 8 steps of the theory of balancing a (paced) line?
- Determine tasks (operations)
- Determine sequence
- Draw precedence diagram
- Estimate task times
- Calculate cycle time
- Calculate number of work stations
- Assign tasks
- Calculate efficiency
What is the formula of:
- Cycle time (required)
- Minimum number of workstations
- Efficiency
- Cycle time (required) = production time available / demand per day
- Minimum number of workstations = Min #WS = som van task times / cycle time (naar BOVEN afronden!)
- Efficiency = som van task times / (actual #ws) * (cycle time)
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What are 3 disadvantages of paced assembly line (operating at a fixed task time (=cycle time))?
- High volume required because of the large investment
- Work stoppage at any point can tie up the whole operation
- Process flexibility can be a challenge
What are 3 charasteircs of disassembly lines?
- Disassembly is being considered in new product designs
- "Green" issues and recycling standard are important considerations
- Automotive disassembly is the 16th largest industry in the US
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