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Improvements for Measurement Systems´ Feedback to achieve Robust Process Control

A case study performed at GKN Aerospace Sweden

Niclas Persson
Göteborg : Chalmers tekniska högskola, 2015. 81 s. Diploma work - Department of Materials and Manufacturing Technology, Chalmers University of Technology, 2015.
[Examensarbete på avancerad nivå]

This report presents the research performed at Center of Excellence Design for Robustness at GKN Aerospace, Trollhättan, Sweden. GKN Aerospace is a first tier supplier for manufacturing of components for civil and military aircrafts, and space propulsion. In manufacturing industries, variation is inevitable and can occasionally affect products and processes with undesirable consequences. To handle variation in manufacturing, it has to be measured and understood. The baseline for this research has been to, on a holistic perspective, identify and depict insufficiencies in the current measurement systems´ ability to generate feedback from the manufacturing processes for initiation of continuous process improvement efforts. Apprehending information from the measurement systems feedback allows personnel to engender knowledge about the processes inflicting variation and behavior. Enquiring this knowledge is a major prerequisite for a fact-based decision strategy for correct improvement adjustments. When the feedback and generation of information is insufficient, data-associated projects are captivated to achieve their stated objectives of improvements. By merging knowledge from theoretical and practical fields, improvement proposals were conducted in an aggregated model consisting of principles, practices and tools. The practical proposals recommends to disintegrate the manufacturing process into sub-process steps, and apply a registering approach towards the production flow. The theoretical proposals strive to illuminate practices and tools to embed in order to achieve disintegrated elements of the overarching goal, namely the principles to strive for. By the conducted model and the empirical study, the result of the research answered two elements within the aim of the study, namely to describe the current state and develop an enhanced future state for the measurement system. In order to assist the organization in the transition between the different states, this thesis concluded the purpose of research by discussing two deliverables. The deliverables elaborated on management’s role in the context and the need for establishing a unified language.

Nyckelord: Measurement system, measurability, traceability, reliability, producibility, statistical process control

Publikationen registrerades 2017-11-21. Den ändrades senast 2017-11-21

CPL ID: 253282

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