Highly responsive and accurate temperature measurements in orthogonal cutting through innovative single leg thermocouple
Article dans une revue avec comité de lecture
Author
Date
2021Journal
MM Science JournalAbstract
During machining, most of the thermal sources are resulting from the conversion of mechanical energy during the chip shearing mechanism and the intense frictions between the tool, the chip, and the machined surface. Thermal gradients are high and localized, especially for low thermal diffusivity material like titanium alloys. Moreover, heat rates come close to few million degrees per second in the shearing zones. Even though several authors performed thermography techniques to determine the temperature distribution into the machined material, their results remain underestimated due to experimental limitations. In this research, a new temperature measurement technique has been developed based on a single wire thermocouple to measure at one exact location both the temperature and the heating rate during orthogonal cutting test. The tests are performed with uncut chip thicknesses of 0.020 mm and 0.100 mm and with a cutting speed of 120 m/min with two different cutting angles. Results are discussed and compared to prior studies.
Files in this item
Collections
Related items
Showing items related by title, author, creator and subject.
-
Communication avec acteLIU, Hongguang; CHERIF, Mehdi; CALAMAZ, Madalina; ELIAS-BIREMBAUX, Hélène L.; ROSSI, Frederic; POULACHON, Gerard; AYED, Yessine (Elsevier BV, 2023)This paper presents a novel 3D numerical model of drilling CFRP to evaluate the degradation of mechanical properties in the hole surfaces. It can be used to determine the change of functional performance induced by accumulated ...
-
Communication avec acteKOFFI SAMUEL, KOULEKPA; DELIGEANT, Michael; ELIAS-BIREMBAUX, Hélène L.; ROSSI, Frederic; POULACHON, Gerard (Proceedings of the Machining Innovations Conference for Aerospace Industry (MIC) 2023, 2023-11-29)In order to face the challenges in machining difficult-to-cut materials as nickel and titanium alloys, many cooling methods have been developed through the years, among which is the usage of supercritical carbon dioxide ...
-
Article dans une revue avec comité de lectureLAZOGLU, Ismaïl; RAMIREZ, Christophe; AKMAL, Mohammad; MARCON, Bertrand; OUTEIRO, José; KREBS, Michael; ROSSI, Frederic; POULACHON, Gerard (Elsevier, 2017)Ti-6Al-4V is commonly used especially in aerospace and biomedical industries. This alloy is known as a difficult-to-cut material. Due to its poor thermal properties, the heat generated during machining processes traps near ...
-
Communication avec actePOUTORD, Antoine; M'SAOUBI, Rachid; ABRIVARD, Guillaume; ROSSI, Frederic; POULACHON, Gerard (Congrès Français de Mécanique (21; 2013; Bordeaux), 2013)In aerospace applications, drilling is one of the most common operations. However, this machining stays complex and expensive, especially in hard to cut materials. Because of the closed aspect of the operation, the measure ...
-
Article dans une revue avec comité de lecturePOUTORD, Antoine; M'SAOUBI, Rachid; ABRIVARD, Guillaume; ROSSI, Frederic; POULACHON, Gerard (Inderscience, 2016)In aerospace applications, drilling is one of the most common operations. However, this machining stays complex and expensive, especially for difficult-to-cut materials such as titanium alloys. Because drilling is a blind ...