The influence of cutting parameters and tool wear on the quality of holes in package sheets used in heat exchangers

• Autorzy: Wieczorek Łukasz , Józwik Jerzy , Niesłony Piotr , Moj Kevin

Identyfikatory

DOI

10.12913/22998624/195585

• Języki publikacji: EN

Abstrakty

EN

The presented research aimed to obtain information on the effect of cutting parameters and tool wear on the quality of shaped holes in stainless steel package sheets. The testing was planned to allow evaluation of the impact of drilling technology. For this reason, verification tests were performed on a monolithic sheet of the same material grade and thickness equal to the package of four base sheets. It was noted that the double-insert drill is not qualified for use in this process, as it does not provide adequate hole quality (even 0.7 mm deviation in measured diameter from nominal value) and does not provide the expected tool life. Significantly better results were obtained for the monolithic and indexable head drills (IT8). In addition, it was observed that the burr formed when the drill exits the hole, in the case of the indexable double-insert drill, is also significantly larger (~1mm) than for the other tools (less than 0.1 mm). Preliminary tests carried out in this way made it possible to select the tool with the best cutting capability and quality of the generated holes. It was decided to use a drill with an interchangeable head. Tests have shown that it is possible to produce up to 1,000 holes with a diameter of 18.5 mm in a sheet package of 316Ti material with a thickness of 40 mm while maintaining the assumed effective speed of the process (n=1200 rpm, fn=0.18 mm/rev). In experimental testing, a significant effect of cutting speed on tool wear was noted. A correlation between coolant concentration and tool life was also identified - raising the concentration from 8% to 12% increased tool life by virtually 100%. Testing of hole roughness over a full tool life cycle showed that a drill bit with a completed break-in phase provides better hole roughness than a new drill bit. Measuring equipment and software were used for the research and processing of the results – Wenzel XO55, Hommel Etamic LV 17, WM Quartis R2021-1, Grapher 18.3.400, Autodsk Inventor Professional 2023.

Słowa kluczowe

EN

drilling process; cutting parameters; tool wear; hole accuracy; tolerances; dimensional deviation; shape deviation

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2025
• Tom: Vol. 19, no. 4
• Strony: 156--170
• Opis fizyczny: Bibliogr. 14 poz., fig., tab.

Twórcy

autor

Wieczorek Łukasz

• Opole University of Technology, ul Mikołajczyka 5, 45-271 Opole, Poland
• Kelvion Sp. z o.o., ul Kobaltowa 2, 45-641 Opole, Poland

autor

Józwik Jerzy

• Lublin University of Technology, ul. Nadbystrzycka 38d, 20-618 Lublin, Poland

• https://orcid.org/0000-0002-8845-0764

autor

Niesłony Piotr

• Opole University of Technology, ul Mikołajczyka 5, 45-271 Opole, Poland

autor

Moj Kevin

• Opole University of Technology, ul Mikołajczyka 5, 45-271 Opole, Poland

Bibliografia

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• 2. Classification of Heat Exchangers. In: Fundamentals of Heat Exchanger Design [Internet]. John Wiley & Sons, Ltd; 2003. p. 1–77. Available from: https://onlinelibrary.wiley.com/doi/abs/10.1002/9780470172605.ch1.
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• 4. Jurko J, Panda A. Identification of the tool wear mechanisms and forms at drilling of new stainless steels. AASRI Procedia. 2012 Jan 1; 3: 127–32.
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• 8. Zbigniew Vogel. Temperatura skrawania przy wierceniu i jej rozkład wzdłuż krawędzi skrawających wiertła. Zeszyty Naukowe Politechniki Śląskiej. 1969.
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• 10. Marzouk SA, Aljabr A, Awjah Almehmadi F, Alam T. Dynamic thermal analysis and drill bit temperature in AISI 430 stainless steel. Thermal Science and Engineering Progress. 2024 Aug; 53: 102706.
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• 14. American Petroleum Institute. API Standard 661. 2013; Seventh Edition.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).