The influence of quenching temperature on distortions during the individual quenching method

• Autorzy: Wołowiec-Korecka E. , Stachurski W. , Zgórniak P. , Korecki M. , Brewka A. , Byczkowska P.

Identyfikatory

DOI

10.5604/01.3001.0014.5764

• Języki publikacji: EN

Abstrakty

EN

Purpose: In this paper, the impact of hardening temperature on the quenching distortions which occur during low-pressure carburizing with gas quenching - using the individual quenching method - was analysed. Design/methodology/approach: The reference elements were subjected to carburizing at 980°C, followed by gas quenching at temperatures of 860°C, 920°C and 980°C. The geometrical measurements of the elements were made before and after the chemical treatment and the size of the quenching distortions of their geometrical parameters was determined. Findings: It was demonstrated that a high temperature of quenching has an unfavourable effect on changes in cylindricity and roundness parameters but, at the same time, reduces the size of distortion of outer parameters. Low temperature quenching reduces quenching distortions of cylindricity and roundness parameters while increasing the distortion of outer dimensions. Research limitations/implications: Based on the research and analysis carried out in this work, it was found that the use of lower quenching temperature is justified in economic and quality terms. Practical implications: In the case of the aviation or automotive industry, very high quality of manufactured elements along with a simultaneous reduction of their production costs is extremely important. Maintaining the dimensions of the elements during heat treatment is extremely difficult. The tests allowed to determine the optimal hardening temperature, which brings with it acceptable deformations. Since it is easier to “repair” the outer geometrical dimensions (diameter, thickness), it seems that quenching from lower temperatures is a more favourable process. Originality/value: The conducted tests allowed to determine the most favourable conditions for hardening elements from the automotive industry, taking into account the occurring deformations and their subsequent processing

Słowa kluczowe

EN

thermal treatment; distortion; quenching; low-pressure carburizing

PL

obróbka termiczna; zniekształcenie; hartowanie; nawęglanie niskociśnieniowe

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2020
• Tom: Vol. 105, nr 2
• Strony: 80--85
• Opis fizyczny: Bibliogr. 24 poz.

Twórcy

autor

Wołowiec-Korecka E.

• Institute of Materials Science and Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, ul. Stefanowskiego 1/15, 90-924 Łódź, Poland

autor

Stachurski W.

• Institute of Machine Tools and Production Engineering, Lodz University of Technology, ul. Stefanowskiego 1/15, 90-924 Łódź, Poland

autor

Zgórniak P.

• Institute of Machine Tools and Production Engineering, Lodz University of Technology, ul. Stefanowskiego 1/15, 90-924 Łódź, Poland

autor

Korecki M.

• Seco/Warwick SA, ul. Sobieskiego 8, 66-200 Świebodzin, Poland

autor

Brewka A.

• Seco/Warwick SA, ul. Sobieskiego 8, 66-200 Świebodzin, Poland

autor

Byczkowska P.

• Institute of Materials Science and Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, ul. Stefanowskiego 1/15, 90-924 Łódź, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)