Value Stream Mapping For Lean Manufacturing
Lean manufacturing is the removal of waste, by
improving production time, which results in improved quality and
the reduction of costs. Value Stream Mapping (VSM) is the visual
tool used to identify and eliminate waste, which makes VSM an
incredibly important tool to use in the success of lean manufacturing.
Specifically, Value Stream Mapping allows you
to see the flow of the value stream, and where the wastes are
within the flow. For instance, when a value stream map is created,
the first step is to draw out the value adding steps in the middle
of the paper, what the delays are, and all information required
in order to deliver the product or service. There are also different
tools used on the map that are hand drawn, providing an easier
avenue for developing and making corrections.
Plus drawing out the map gives you the opportunity
to view and understand how the materials and information flows
in the value stream in order to discuss the required changes.
This information will guide you for establishing the future state
map with prioritized activities in order to achieve the future
state vision.
Another critical piece in the value stream map
is all the non-value adding steps, which are the operations of
the value stream, such as a person’s workstation. The non-value
adding steps are also classified as the preparatory or cleaning
up phase. Once these have been identified, lines are drawn to
each value adding step. A vertical line is drawn from the non-value
adding steps to the value adding steps, which tells a story about
the person performing the work, or the workstation. A horizontal
line is drawn is drawn between each of the value adding steps
indicating the product being created.
In essence, Value Stream Mapping is used to
identify the opportunities for reducing waste and improving quality.
VSM can also be used for other functions, not just manufacturing,
such as logistics, the supply chain, other departments within
an organization, as well as other industries. It is important
to clearly outline the current state, with all pieces that affect
all phases of the process. Once this is done, then the brainstorming
of how to eliminate the waste and improve the process can be conducted.
The final step is to create a future state vision map of how the
process will operate, and implement the changes.
Value Stream Mapping is important to help aid
in the successful implementation of all lean manufacturing activities.
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