Heat flux in metal cutting: Experiment, model, and comparative analysis

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Sammanfattning

In this paper, a proof of time-dependent behavior of heat flux into a cutting tool is built. Its implementation calls for a new method for estimating heat flux, which was developed using an inverse problem technique. A special experimental setup was designed and manufactured to implement the method. A series of dry machining experiments were conducted with high speed steel and cemented carbide tooling. A two-stage procedure was developed to overcome the ill-posedness of the inverse heat conduction problem by transforming it into a well-posed parameter estimation problem. The first stage retrieves the value of the heat flux and specific tool heating energy Et. The second stage parametrizes and compares predefined heat flux behaviors. It was found that the time dependency of heat flux is best described by a decreasing power function.

Originalspråkengelska
Sidor (från-till)81-97
Antal sidor17
TidskriftInternational Journal of Machine Tools and Manufacture
Volym134
DOI
StatusPublished - 2018 nov 1

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