| Summary: | 碩士 === 中原大學 === 工業工程研究所 === 95 === Most metal processing and forming are currently conducted on basic machinery operated by workers using techniques such as lathing, milling, planing, drilling, cutting, pressing and sawing etc, most of which lack consideration in precision and automatic control.
However, tasks of metal processing and forming usually involve multiple machines with various functions. In small to mid-sized factories, most of these tasks are performed by a single worker who operates several machines consecutively.
Because these machines have different functions and operations, the worker’s mental model and adaptability shift with each machine he/she operates. The shift results in significant performance gap, sometimes even bringing forth workplace safety concerns, presenting an often neglected but urgent ergonomic issue.
In light of this, the study with its two experiments aims to identify the effects of mental model conversion. The experiments show that, when the worker operates two machines with reverse operation patterns and attributes yet similar hand movements, adaptability is dramatically and adversely affected.
Besides, comparing the efficiency of productivity from operating two such machines, the study delves into other exterior factors that can affect adaptability to find an applicable forecast model, seeking to apply these findings into extensive and effectual use.
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