Analiza termičnih obremenitev rezalnih orodij pri struženju z uporabo pirometra

Frančula, Sergej (author), Pušavec, Franci (mentor)

V diplomski nalogi je predstavljen nastanek in vpliv termičnih obremenitev rezalnih orodij pri struženju. Slednji imajo velik vpliv na pravilno izbiro procesnih parametrov in s tem dosežejo želeno produktivnost, integriteto površine in obstojnost orodja. V namen obvladovanja teh pogojev je pomembno zagotoviti ustrezen postopek spremljanja razvoja temperature v rezalni coni. Trenutni postopki, ki večinoma temeljijo na uporabi uporovnih temperaturnih zaznaval, so problematični iz vidika merilne ponovljivosti. S ciljem spremljanja razvoja termičnih obremenitev smo v Laboratoriju za odrezovanje zasnovali merilni sistem, ki spremlja najvišjo temperaturo na rezilnem orodju za struženje z uporabo pirometra med odrezovanjem. S pomočjo razvitega sistema bomo lahko imeli večjo merilno ponovljivost, boljši pogled na ustreznost obdelovalnih parametrov, materiala rezilnega orodja in efektivnost hladilno-mazalnih pristopov. Merilni sistem smo nato preizkusili, ter ugotovili, da je zmožen pravilno meriti temperaturo. Dobili smo namreč temperaturne meritve, ki so primerljive ostalim metodam merjenja.

• Language: Slovenian
• Keywords: odrezovanje, struženje, merilni sistem, temperatura, pirometer
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [S. Frančula]
• Year: 2023
• Number of pages: XX, 62 str.
• PID: 20.500.12556/RUL-149010
• UDC: 621.941.025:536.52:620.179.13(043.2)
• COBISS.SI-ID: 165644035
• Publication date in RUL: 02.09.2023

FRANČULA, Sergej, 2023, Analiza termičnih obremenitev rezalnih orodij pri struženju z uporabo pirometra [online]. Bachelor’s thesis. Ljubljana : S. Frančula. [Accessed 25 April 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=149010

Secondary language

• Language: English
• Title: Analysis of thermal loads on cutting tools during turning with pyrometer

Abstract

The thesis presents the formation and influence of thermal loads on cutting tools during turning. The latter have a great influence on the correct selection of process parameters, and thus achieve the desired productivity, surface integrity and durability of the tool. In order to manage these conditions, it is important to provide an appropriate process for monitoring the development of the temperature in the cutting zone. Current procedures, which are mostly based on the use of resistance temperature sensors, are problematic from the point of view of measurement repeatability. With the goal of monitoring the development of thermal loads, we designed a measuring system in the Cutting Laboratory that monitors the highest temperature on the cutting tool for turning using a pyrometer during cutting. With the help of the developed system, we will be able to have greater measurement reproducibility, a better view of the adequacy of processing parameters, cutting tool material and the effectiveness of cooling and lubrication approaches. We then tested the measuring system and found that it is capable of measuring the temperature correctly. Namely, we obtained measurement temperatures that are comparable to other measurement methods.

• Keywords: cutting off, turning, measurement system, temperature, pyrometer