Title:
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A Study of the A.1. wet cast concrete manufacturing processes and the impact of automation on the supply chain
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The research contained in this thesis addresses a major industry-threatening problem
where a complete change in methodology and technology was required to replace
simple manual methodology developed more than fifty years ago. The problem was
solved by the implementation of a high risk and complex high technology project in
two phases. The thesis describes how research into the fundamental techniques
available was utilised to develop the solution following the acquisition of the
knowledge required to apply the techniques in a systematic manner. An holistic
study of the inbound supply chain and conversion process was necessary to achieve
the depth of process change needed. It was required to achieve a step change in the
now unsafe working practices that had developed over the years since the start of the
wet cast industry in the Cotswolds.
Starting with an ergonomic study that uncovered the priority areas for automation,
the study called on the use of a wide range of research techniques from:
brainstorming; structured interviews; process mapping; to the invention and
innovation associated with the introduction of leading edge technology combining
linear motion devices with robots and introducing emerging radio frequency
identification technology to initiate product changeovers. Radio data systems were
used to introduce lean, Just-in-Time (JIT) concepts to the inbound supply chain
By embarking on a review of the key techniques required to achieve success, each
was evaluated to enable decisions to be made on their application to the prime
objective of completing an automation project that eliminated health and safety
issues and achieved a major reduction in conversion costs.
The major cultural change required from the existing workforce was recognised at an
early stage and the thesis describes the steps that were taken to minimise the impacts
of inevitable job losses and social changes required to operate an automated plant
over 24 hours without stopping for breaks. With a long history of operating only
dayshifts, with occasional nightshifts in peak season, it was necessary to implement a new and unique shift operating system with variable shift lengths over the year to
coincide with peak and low seasons. Mitigating the harmful effects from operating
rotating shift systems was researched and a strategy for the `Social Project' running
in parallel with the `Technology Project' was produced. Information associated with
the social changes involved was completely transparent with full consultation taking
place with the workforce and the trade union representing them. The social project
underpinned the high-tech project to create the success achieved from the study.
High-tech complex projects are known to carry a high degree of risk associated with
them. In order to combat these risks it was necessary to apply a whole range of risk
management techniques and to consider risk in an holistic manner. Incorporating
financial, environmental, safety and completion time risks in the risk
assessment/mitigation procedures applied. Many projects include the application of
risk assessment and mitigation procedures before the project starts but few employ
them in the dynamic manner over all phases of the project advocated in the thesis.
The evaluation of the study outcome suggests further areas of risk management
improvement to aid in the execution of further projects of the nature described in the
thesis.
A key element in the success of the automation project was the development of a
detailed specification of the Phase 2 full automation project. This was possible after
completion of the smaller Phase I project and was responsible for achieving the high
degree of certainty demonstrated during the execution of the second phase. Having
the opportunity of devising the automation innovation from first principles using
prototype development techniques helped enormously in creating the new paradigm
in wet cast manufacturing processes which eliminated the major health and safety
issues and produced cost savings that enabled the company to compete successfully
against low-cost Far Eastern imported products.
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