Tools with built-in thin film thermocouple sensors for monitoring cutting temperature

Basti, Ali; Obikawa, Toshiyuki; Shinozuka, Jun

doi:10.1016/j.ijmachtools.2006.09.007

Cited by 97 publications

(47 citation statements)

References 13 publications

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“…12.3b). However, the CTR tends to decrease with increasing cutting speed as reported by Basti et al [37] after machining the ductile 1100-type aluminum alloy in orthogonal turning conditions. This behavior is related to the higher heat generated under high cutting speeds that facilitates the shearing process involved during chip movement over the rake face of the tool.…”

Section: The Ccd Machining Test Data and Regression Analysismentioning

confidence: 56%

Multi-objective Optimization of Cutting Conditions When Turning Aluminum Alloys (1350-O and 7075-T6 Grades) Using a Genetic Algorithm

Jackson¹,

Machado²,

Barrozo³

et al. 2015

Machining With Nanomaterials

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In machining, many output parameters are used to diagnose machinability. Parameters such as tool wear, tool life, cutting temperature, machining force components, power consumption, surface integrity, and chip thickness ratio are regularly employed. The aim of this work is to investigate the behavior of the machining force (Fu), chip thickness ratio (CTR) and chip disposal when turning ductile (1350-O grade) and of high strength (7075-T6 grade) aluminum alloys at various cutting conditions (cutting speed: Vc, feed rate: f, and depth of cut: doc). A central composite design (CCD) of experiments was used that generated second order models of the parameters: [Fu (Vc, doc, f ); CTR (Vc, doc, f )]. Surface response methods and level curves were used for studying the effects of the cutting conditions on the output parameters: Fu and CTR. The cutting conditions (Vc, doc, f ) that simultaneously minimize the machining force (Fu) and the chip thickness ratio (CTR) was determined with the help of the genetic algorithm method (GAM). The results showed that all the input parameters acting both individually or in combination with each other had significant effect on the responses. Moreover, the machining force (Fu) followed a similar trend as the chip thickness ratio (CTR) when the input parameters were varied, i.e., they decreased when the cutting speed increases and increased at higher feed rate and depth of cut.

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Section: The Ccd Machining Test Data and Regression Analysismentioning

confidence: 56%

Multi-objective Optimization of Cutting Conditions When Turning Aluminum Alloys (1350-O and 7075-T6 Grades) Using a Genetic Algorithm

Jackson¹,

Machado²,

Barrozo³

et al. 2015

Machining With Nanomaterials

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show abstract

“…W układach tych wykorzystuje się między innymi [10]: − spreparowane, wydrążone ostrza z wkładką z termopary obcej w różnych odmianach, − metodę termoelementu naturalnego, gdzie w sposób naturalny powstaje róż-nica potencjałów na styku dwóch różnych materiałów wióra i ostrza [1,4], − ostrza ze zintegrowanymi termoparami [2], − pirometry i kamery termowizyjne [5], − techniki metalograficzne oparte na znajomości temperatur topnienia cienkich powłok metalicznych nanoszonych na ostrze metodą PVD. Szybki i wiarygodny pomiar temperatury skrawania nabiera istotnego znaczenie szczególnie w aspekcie wykorzystania tych informacji do monitorowania stanu ostrza.…”

Section: Metodyka Wyznaczania Temperatury W Strefie Skrawania Podczasunclassified

“…Generalnie metody stykowe pozwalają na wyznaczenie średnich wartości temperatury w strefie skrawania [2,3,10]. Metody bezstykowe oparte na zjawisku promieniowania ciepła pozwalają na wyznaczenie temperatury na powierzchniach przedmiotu, narzędzia i wióra.…”

Section: Metodyka Wyznaczania Temperatury W Strefie Skrawania Podczasunclassified

Methodology of measurement of the temperature in the cutting zone during turning and milling of titanium alloy Ti6Al4V

Niesłony¹,

Habrat²,

Laskowski³

2015

Mechanik

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StreszczeniePomiar temperatury w procesach skrawania ma istotne znaczenie ze względu na możliwość wykorzystania tych informacji do analiz i symulacji. Przedstawiono potencjalne zastosowania metody termoelementu naturalnego w pomiarach temperatury skrawania podczas toczenia ostrzami węglikowymi. Opisano przykładowe stanowisko do wzorcowania termopary naturalnej. Omówiono możliwości zastosowania kamery termowizyjnej do pomiaru temperatury skrawania podczas frezowania walcowo-czołowego. Przedstawiono wyniki badań dotyczące analizowanych metod pomiaru temperatury. Słowa kluczowe: temperatura w procesie skrawania, metoda termoelementu naturalnego, kamera termowizyjna METHODOLOGY OF MEASUREMENT OF THE TEMPERATURE IN THE CUTTING ZONE DURING TURNING AND MILLING OF TITANIUM ALLOY Ti6Al4V AbstractThe temperature measurement in machining processes is an important problem due to the using this information for analysis and simulation. The possibilities of application of the natural thermocouple method for temperature measurement during turning with use of carbide insert were described. The exemplary system for calibrate a natural thermocouple was presented. The possibility of using the thermographic camera to measure the cutting temperature during end-milling was presented. The results of research in the field of analyzed methods of temperature measurement were showed.

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“…A more advanced and complicated method is by measuring the cutting temperature using built-in thin film thermocouple sensors. This technique works very well in accurately monitoring and predicting the temperature [15].…”

Section: Introductionmentioning

confidence: 99%

Investigation on the use of cutting temperature and tool wear in the turning of mild steel bars

Abou-El-Hossein¹,

Kops²

2017

J. MECH. ENG. SCI.

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The paper is concerned with the development of a data acquisition system for the measurement of temperature used for metal cutting. In this study, machining tests were performed and an analysis of the temperature and wear of the cutting tool is presented herein. In metal cutting operations, the wear of tools is generated largely due to the heat emitted from the cutting zone. Therefore, a coolant is often used to cool down the cutting area and protect the cutting tools. However, because of environmental concerns, engineers now try to avoid using cutting coolants and perform cutting operations in almost dry conditions. In this study, a mild-steel round bar was turned at various feed rates, depths of cut and cutting speeds. A data acquisition system was built to record the cutting temperature while turning the bar. From the study, it is evident that certain combinations of cutting parameters result in higher temperatures than those produced in other experiments. It was established that the depth of cut and cutting speed at their highest values (1 mm and 250 m/min, respectively) contribute largely to the high surface temperature, while the effect of feed rate is intangible. Increasing the cutting speed results in an increase in the cutting temperature. A similar result was observed when the depth of cut was increased. However, increases in feed rate did not significantly cause increases in cutting temperature. In addition, cutting inserts were examined under a scanning electron microscope (SEM) to quantify the tool wear in each experiment. A correlation between tool wear and temperature is clearly noticed. The study concluded that the combination of variations in cutting speed and depth of cut results in severe tool wear action on the tool's flank face as a result of the intensive heat generated.

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Tools with built-in thin film thermocouple sensors for monitoring cutting temperature

Cited by 97 publications

References 13 publications

Multi-objective Optimization of Cutting Conditions When Turning Aluminum Alloys (1350-O and 7075-T6 Grades) Using a Genetic Algorithm

Multi-objective Optimization of Cutting Conditions When Turning Aluminum Alloys (1350-O and 7075-T6 Grades) Using a Genetic Algorithm

Methodology of measurement of the temperature in the cutting zone during turning and milling of titanium alloy Ti6Al4V

Investigation on the use of cutting temperature and tool wear in the turning of mild steel bars

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