Manufacturing System Layout Techniques Flashcards
Describe and draw the 3 layout strategies
Process Layout
Product Layout
Hybrid Layout
What is the process layout strategy?
Resources are grouped by resource type, therefore routes travelled by parts can be complex
How would you design a process layout?
Machines are grouped by type, parts travel as required between machines. Objective is to reduce the total distance travelled by a part
What is the product layout strategy?
Resources arranged according to sequence of operations on a part, therefore routes are linear and simple
How would you design a product layout?
Product layout consists of a series of work stations, at each work station a series of operations will be carried out. Work stations must be arranged in order of operations.
What is cycle time?
The length of time a part spends at each work station.
How do you increase production rate?
Increase number of work stations so work content is reduced.
How do you calculate cycle time?
C = Time period / planned output
How do you calculate the required number of work stations?
TM = time for all operations / C
What is meant by balancing?
optimising time part is processed at each work station so that it is close as possible to the cycle time.
How do you calculate Utilisation?
U = (total work content * 100) / (no. work stations * C)
How do you calculate the balancing delay?
100 - U
What is the Hybrid layout strategy?
Resources arranged in mini production lines according to sequence of operations on a family of parts.
What is the Group Technology strategy?
Components are classified into families, work loads are balanced by production groups, production groups are clearly identifiable, each group works with a significant degree of autonomy
How would you design a hybrid layout?
Group parts that share common processes, these form manufacturing cells
