台灣家具業有著諸多優勢，除上游金屬材料足夠外，中下游業者的自動化技術程度也逐步提高；產業升級的過程中，客戶對於品質的要求愈發嚴格，金屬製造技術因各類考量導入機械手臂取代人工，焊接即為其中之一。面臨環境與國際化壓力，企業勢必得提升競爭力以保有市場，如何讓企業在降低成本的同時也維持甚至增進原有品質，便是提升競爭力的關鍵要素。
本研究以金屬家具製造商為例，將案例公司為期四個月的訂單資料予以分析，以占比最重的產品作為對象，使用價值流圖（Value Stream Mapping，VSM）找出改善契機並訂立目標。精實生產（Lean Production）可讓各類不必要的浪費降至最低，減少成本及改善品質，於焊接機械手臂（Welding Robot）生產線應用多項原則及手法，導入單元工程（Cellular Mantfacturing），結合製程研究表（Process Study Sheet）、標準作業組合票（Standardized Work Combination Table）、精實作業安排（Arrangement with Lean Production Approach）、線平衡分析（Line Efficiency Analysis）、作業標準化（Work Standardization）與著著化（Chaku-chaku），重新安排作業人力和現場作業佈置，發展出改善及未來方案。以現場蒐集與離散事件模擬（Discrete Event Simulation）工具評估改善效益，減少實際系統的生產損失風險，減少囤積在製品（Work in Pcocess，WIP）及有價值時間過低兩大問題產生的浪費，方案改善幅度為11%-110%不等，並分析導入少人化（Shojinka）與搬運批量減半的影響。
因應自動化技術的盛興，機械手臂被廣泛導入金屬製造技術，不只侷限於焊接，本研究應用精實生產系統之成果適用於人機混合之各類製程，建立穩定的基礎、訂立標準為生產線順暢流動的關鍵。

Taiwan's furniture industry has many advantages. In addition to sufficient upstream metal materials, the automation technology of midstream and downstream vendors has gradually improved. In the process of industrial upgrading, customers have more and more stringent requirements for quality. Metal manufacturing such as welding has been introduced into robots to replace labor due to various considerations. Faced with environmental and international pressures, companies are bound to enhance their competitiveness in order to maintain the market. It is the key element how to make companies maintain or even improve their original quality while reducing costs in enhancing competitiveness.
This study takes a furniture manufacturer of metal as an example, analyzes the four-month order data of the case company. It takes the most important product as the object, uses Value Stream Mapping to identify opportunities for improvement and establish the goal. Lean Production can minimize all kinds of unnecessary waste, reduce costs and improve quality. It applies multiple principles and techniques to the Welding Robot production line, introduces Cellular Manufacturing, and combines Process Study Sheet, Standardized Work Combination Table, Arrangement with Lean Production Approach, Line Efficiency Analysis, Work Standardization and Chaku-chaku, rearrangement of manpower and layout, and develop improvements and future plans. Using on-site collection and discrete event simulation to evaluate the benefits, reducing the risk of production loss in the actual system and the waste caused by the two major problems of hoarding work in pcocess and low valuable time. The improvement range is 11%-110%.
It analyze the impact of introducing Shojinka and halving the handling batch.
In response to the prosperity of automation technology, robots have been widely introduced into metal manufacturing, not just limited to welding. The results of the application of the Lean Production system in this research are applicable to various processes of human-machine mix. After establishing a stable foundation, setting standards is the key to the smooth flow of the production line.

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