Lean Process Design Based on Standard Time Analysis

In the life cycle of automobile products, the design stage determines the cost of more than 70% of the product life cycle. After the product design is finalized, the space for cost reduction is very limited. Lean design is to reduce unnecessary cost links to achieve high quality, high efficiency and low cost. In the process design stage, by analyzing the Working time\s of the process, integrating the parameters such as DST (design standard time), PST (process standard time), K (impact time on other processes), Δ t (waiting time), the general assembly process will be displayed on the map, and the “congestion” and “detour” judgment models of the process will be established with the time navigation path analysis method, so as to appears the waste in the process design as the way of “congestion” and “detour". Aiming at the process of “congestion” and “detour”, we should improve the process, optimize the process, adjust the process path, and achieve the purpose of eliminating waste and achieving lean process design.