Prediction of abrasive waterjet machining parameters of military-grade armor steel by semi-empirical and regression models
Authors:
- Soundarapandian Rammohan,
- Sundaresan Thirumalai Kumaran,
- Marimuthu Uthayakumar,
- Kinga Korniejenko,
- Marek Nykiel,
- Arumugam Velayutham
Abstract
Rolled homogeneous armor steel (RHA) with a high tensile strength, toughness, and hardness is often used in military combat vehicles. RHA is a high-strength low alloy steel suitable for all battlefield usage in military vehicles. The present work examines the prediction output responses in the material removal rate (MRR), surface roughness (Ra), and kerf angle (Ka) for the AWJM of armor steel using regression and semi-empirical models. The AWJM trials were performed using an L27 factorial design with each process variable set to three levels, namely, the standoff distance (SOD), jet traversing speed (JT), and jet water pressure (P). A regression model was constructed using the response surface method (RSM) and data from the trials. Through dimensional analysis and with Buckingham’s π-theorem, a semi-empirical model was built using both the experimental data and material property data. Predictions made by the models were proportionate with the results of the experiments under the same conditions. Microscopic investigations on MRR and Ra were performed using a scanning electron microscope (SEM). The optimal values of the output responses of the machined armor steel plate were obtained with higher MRR = 298.92 mm3/min, lower Ka = 0.651°, and lower Ra = 2.23 µm. The present work established that semi-empirical models accurately predict the output responses in the AWJM of armor steel.
- Record ID
- CUTb2ee34e9481d43878fed0b2a8646abd4
- Publication categories
- ;
- Author
- Journal series
- Materials, ISSN , e-ISSN 1996-1944, Biweekly
- Issue year
- 2022
- Vol
- 15
- No
- 12
- Pages
- [1-18]
- Article number
- 4368
- Other elements of collation
- fot.; rys.; tab.; wykr.; Bibliografia (na s.) - 17-18; Bibliografia (liczba pozycji) - 37; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 15, Iss. 12, Spec. Iss.
- Substantive notes
- Special Issue: Materials Dedicated for Armours and Protection Systems
- Keywords in English
- abrasive waterjet machining, armor steel, buckingham π-theorem, regression model
- ASJC Classification
- DOI
- DOI:10.3390/ma15124368 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1944/15/12/4368 Opening in a new tab
- Related project
- E-mobilność oraz zrównoważone materiały i technologie. . Project leader at PK: , ,
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Score source
- journalList
- Score
- Publication indicators
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTb2ee34e9481d43878fed0b2a8646abd4/
- URN
urn:pkr-prod:CUTb2ee34e9481d43878fed0b2a8646abd4
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.