In a company that manufactures semi-finished products for installation in high-pressure
valves, we have been actively working with a team of technologists. They wanted to raise
the level of production in the department. Our aim was to set up a system that allows
complete predictability and traceability, while at the same time allowing accurate
prediction of the workflow. We worked on a project to integrate computer-aided
machining on machine tools. When taking stock of the project, we decided on one lathe. It
was a Nakamura Tome NTY3-150 lathe. The work consisted of developing and testing
specifically defined interfaces on CNC machines and creating a digital environment in
which the lathe twin operates. This virtual tool is of course not perfect, so variations are
expected and unknown. Its accuracy has also been verified. The work was carried out in
segments, from modelling, to technology set-up, to simulation on the twin. This was
followed by testing in a real environment, where we performed these same operations
simulated by the duplicate. We found that by using a smaller correction factor, the virtual
duplicate yielded reliable and repeatable final processing times.
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