Modelling the Peak Cutting Temperature During High-Speed Machining of AISI 1045 Steel

• Autorzy: Burns T. J. , Mates S. P. , Rhorer R. L. , Whitenton E. P. , Basak D.
• Języki publikacji: EN

Abstrakty

EN

This paper presents new experimental data on AISI 1045 steel from the NIST pulse-heated Kolsky Bar Laboratory. The material is shown to exhibit a stifier response to compressive loading when it has been rapidly preheated, than it does when it has been heated using a slower preheating method, to a testing temperature that is below the eutectoid temperature. It is argued, using a simple model for heat generation in the workpiece and the tool during machining, due to Tlusty, that this work has important implications for the modelling of highspeed machining operations. Based on the experimental data, a modification is recommended of the well-known Johnson-Cook constitutive model of Jaspers and Dautzenberg for this material, in order to achieve improved predictions of the peak cutting temperature in machining.

Słowa kluczowe

EN

high-speed machining; thermal modelling; AISI 1045 steel; Kolsky bar

PL

modelowanie termiczne; stal AISI 1045

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2012
• Tom: Vol. 60, iss. 2
• Strony: 113--124
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Burns T. J.

autor

Mates S. P.

autor

Rhorer R. L.

autor

Whitenton E. P.

autor

Basak D.

• National Institute of Standards and Technology, Information Technology Laboratory, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA,

Bibliografia

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