(설명을 위한 생성된 이미지입니다)
그만큼 스메드 방법론 fundamentally distinguishes between internal and external setup operations. Internal setup activities can only be performed when a machine is stopped, such as the usual example of mounting a new die. External setup activities can be completed while the machine is still running, like pre-heating tools or fetching the next die. The primary goal is to convert internal setup time to external.
The distinction between internal and external setup is the cornerstone of the 스메드 system. Before its formalization, changeover processes were often treated as a monolithic block of time where the machine was unproductive. Shigeo Shingo’s critical insight was to analyze every single action taken during a changeover and categorize it. Internal setup (Internal Exchange of Die or IED) includes any task that absolutely requires the machine to be shut down. Examples include unbolting the old tool, cleaning the machine bed, and securing the new tool. External setup (External Exchange of Die or OED) encompasses all preparatory and post-processing tasks that can be performed while the machine is still producing the last batch. This includes transporting the next die to the machine, pre-heating molds, preparing clamps and bolts, and moving the finished parts away. The initial stages of a SMED implementation focus heavily on identifying and separating these activities. A simple checklist is often the first tool used. By meticulously preparing all necessary tools, parts, and conditions beforehand (externalizing the setup), the time the machine is actually stopped (internal setup) can be dramatically reduced. This conceptual separation is what enables the subsequent, more technical steps of converting and streamlining.
SMED에서 내부 설정과 외부 설정의 차이점
(날짜를 알 수 없거나 관련이 없는 경우, 예를 들어 "유체역학"의 경우, 주목할 만한 등장 시기를 대략적으로 추정하여 제공합니다.)
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