Volvo Car Corporation Case Study

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2.0 Step-by-Step Procedure for Implementing SPC 2.1 Choose a company The first step is choosing a company. The company that we choose is Volvo Car Corporation. It is a Swedish premium automobile manufacturer which headquartered in Gothenburg, Sweden in 1927. It is owned by Zhejiang Geely Holding Group of China. It produces a premium range of cars such as sedans, sportswagons, wagons, cross country cars and SUVs which sells across regional market companies and national sales companies. 2.2 Choose a product or process The second step is choosing a product that need improvement and its specification. We chose Volvo V60 which is a five door wagon that released in year 2011. The product that we chose to study is Volvo V60 left side front door. We want to study the closing speed for the car door. The tolerance for this door closing speed is 0.6m/s – 1.4m/s (1±0.4). 2.3 Collect data The third step is to collect data. For Volvo Car Corporation, we have gathered 25 set of samples within four observations. …show more content…

A control chart is used when predict the expected range of outcomes from a process, control ongoing processes, determine either a process is stable or not and analyze process variation patterns from special causes or common causes. Thus, the control chart is used to study the process variation over the time and take corrective action if needed. The control chart has an upper line, central line and lower line for upper limit control, average and lower limit control respectively. There are a few types of control chart, namely x-bar and R-charts, x-bar and s-charts, x-charts, p-chart, np-chart, c-chart and u-chart. The type of control chart being used is choosing based on the data collected which is either variable or attribute. According to Foster (2013), variables data refers as a continuous measurement such as height, weight or volume whereas attribute data refers as an either or situation such as good or

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