A PROTOTYPE WORKSTATION FOR FATIGUE TESTING OF A YOKE TYPE FORGING

1 JABŁOŃSKI Paweł
Co-authors:
1 HAWRYLUK Marek 1 ZIEMBA Jacek 1 RYCHLIK Marcin
Institution:
1 Wroclaw University of Science and Technology, Wyb. Wyspiańskiego 27, 50-370 Wroclaw, Poland, EU, pawel.jablonski@pwr.edu.pl, marek.hawryluk@pwr.edu.pl, jacek.ziemba@pwr.edu.pl, marcin.rychlik@pwr.edu.pl
Conference:
27th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 23rd - 25th 2018
Proceedings:
Proceedings 27th International Conference on Metallurgy and Materials
Pages:
384-389
ISBN:
978-80-87294-84-0
ISSN:
2694-9296
Published:
24th October 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
38 views / 11 downloads
Abstract

The article deals with the matter of development of a prototype of fatigue test bench for fork type forging, with particular emphasis on the measurement-archiving application that allows to determine magnitude of moment of force and rotation angle in time. These forgings are used for steering columns and are a critical element of car safety. Due to the nature of the variability of loads applied to the element, its high fatigue strength is crucial, both in low and high-frequency cycles. For this reason, they require special quality control during production process, development of advanced manufacturing techniques and ensuring their repeatability. Unfortunately, in the case of matrix forges, no strength tests are carried out for these forgings, which means that after heat treatment, they may have different mechanical properties. The construction of the workstation is intended to enable conducting of fatigue strength tests. For its operation web application, was developed in Python (with the use of Flask library and SQLite database), which enables control, collection and analysis of data obtained during the process. Thanks to this, it is possible to execute set number of fatigue cycles, measuring the inflection angle and torque, and detecting cracking of the tested material. Further development of the station is planned in the future, in order to analyze the impact of the applied heat treatment on fatigue strength, creating added value for the end customer.

Keywords: Durability of yoke type forgings, development of a prototype fatigue bench
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