Taebok Kim

Many automotive companies are endeavouring to reduce the weight of the car body in response to various environmental issues. One initiative is the development of TRIP (Transformation Induced Plasticity) steels with a high strength and ductility. Resistance spot welding is a complex process, which requires specific optimal welding conditions based on experimental data. However, the trial-and-error method to determine the optimal conditions requires a large number of experiments, and so response s

Abstract This article discusses the production and ordering policies in a supply chain consisting of a single manufacturer and a single retailer. The retailer places orders based on the EOQ-like policy, and the manufacturer purchases raw materials and allocates them to the multiple plants in parallel to produce demand requirement from the retailer. The model is mathematically formulated, and the solution procedure is developed to determine the production cycle length, ordering quantity and frequ

The development of a well-structured supply chain should simultaneously take into account both inventory-related costs and transportation costs to minimise the overall operating cost. A buyer's lot-sizing decision affects all suppliers' inventory and transportation costs as well as its own operating cost. First of all, it is valuable to perform a structured analysis dealing with the conflicts between a buyer and a group of suppliers. Secondly, the coordination issue among the suppliers should be

In this article, we consider the problem of jointly determining both the manufacturer's selling quantity and the recovery rate of used products in a single-manufacturer–single-retailer supply chain. The types of recovery of used products might be either product recovery or component recovery. Also, since two types of finished products, i.e. either original product or recovered product, might have different sales margins in a market, the optimal recovery policy should be established according to

In a response to changes in customer requirements and environmental dynamics, product lifecycles have become shorter and shorter over the last decades. As a result, production ramp-ups have become more frequent in many industries, and they now often account for a significant share of the entire product lifecycle. Due to the prominent role production ramp-ups play in the lifecycle of a product, efficient production ramp-ups are now an important determinant of business success. This work proposes