Experimental study and modeling of the heat flux acting on the tool flank when machining
Författare
Summary, in English
Adequate setting of the boundary conditions for the heat equation when modeling the temperature distribution in the cutting tool is one of the key points. The boundary conditions on the tool surfaces can be divided into two groups: conditions that describe heat losses (heat exchange with the environment) and conditions that characterize the heat source that heats up the tool (heat flux from the cutting zone). Additional complexity in modeling is provided by the fact that during cutting the surface on which the heat source acts changes, for example, due to wear on the flank surface. In this paper, a method is proposed for measuring the power of a heat source acting on the flank surface. The hardware of the method includes a sensor equipped tool and specially manufactured inserts that imitate the geometry of worn flank surface. In turn, the software is based on the method of solving the inverse heat conduction problem in metal cutting, which allows restoring the heat flux flowing into the tool by measuring temperature with sensors installed in the toolholder. The experimental plan included inserts with negative and positive rake, different cutting speeds (190, 235, 280 m/min), and feeds (0.15, 0.3, 0.45 mm/rev).
Avdelning/ar
Publiceringsår
2021
Språk
Engelska
Sidor
97-102
Publikation/Tidskrift/Serie
Procedia CIRP
Volym
102
Dokumenttyp
Konferensbidrag
Förlag
Elsevier
Ämne
- Manufacturing, Surface and Joining Technology
Nyckelord
- Heat flux
- Inverse technique
- Machining
Conference name
18th CIRP Conference on Modeling of Machining Operations, CMMO 2021
Conference date
2021-06-15 - 2021-06-17
Conference place
Ljubljana, Slovenia
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 2212-8271