Investigation of the effect of process parameters on photochemical machining of SS316l for manufacturing vascular stents
- Authors: Agrawal D.1, Patil S.1, Washimkar D.2, Ambhore N.2, Agrawal D.3
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Affiliations:
- Department of Mechanical Engineering, S.V.P.M’S College of Engineering Malegaon (Bk.), Savitribai Phule Pune University
- Department of Mechanical Engineering, Vishwakarma Institute of Technology, Savitribai Phule Pune University
- Department of Bachelor of Medicine & Bachelor of Surgery, KD Medical College Mathura
- Issue: Vol 27, No 4 (2025)
- Pages: 180-193
- Section: EQUIPMENT. INSTRUMENTS
- URL: https://journal-vniispk.ru/1994-6309/article/view/356669
- DOI: https://doi.org/10.17212/1994-6309-2025-27.4-180-193
- ID: 356669
Cite item
Abstract
Introduction. Photochemical machining (PCM) is a non-traditional machining method capable of developing burr-free and stress-free biomedical components. A stent is a small meshed tube used to remove blockages and open blood passages in arteries and veins. SS316L is one of the recommended materials for stents due to its biocompatibility and machinability with photochemical processes. Vascular stents are made from metal mesh, fabric, silicone, or combinations of materials. The purpose of this work is to investigate the effect of process parameters on the PCM process during the machining of SS316L and to manufacture an SS316L stent as a substrate using photochemical machining. The manufactured stent is used in larger arteries, such as the aorta, to provide a stable channel for blood flow. Methods of investigation. The process parameters for the photochemical machining process were optimized using the Taguchi method with an L9 experimental array (DoE). The effect of process parameters on responses was investigated using F-values. An ANN was employed as a predictive tool for observing deviations in the responses. Results and discussion. The optimum set of machining parameters was obtained and utilized for manufacturing the vascular stent. A phototool with the required stent strut size was developed using CAD software. Controlled etching with ferric chloride generated the mesh, and laser seam welding was performed to develop the tubular stent for placement in blockages. The dimensions of the developed stent were measured with SEM, and the stent strut size was found to vary from 312 µm to 900 µm.
About the authors
Devendra Agrawal
Department of Mechanical Engineering, S.V.P.M’S College of Engineering Malegaon (Bk.), Savitribai Phule Pune University
Email: dpagrawal@engg.svpm.org.in
ORCID iD: 0000-0002-2477-1841
Scopus Author ID: 56335664600
Ph.D. (Engineering), Associate Professor
India, 413115, India, Pune, MaharashtraSushil Patil
Department of Mechanical Engineering, S.V.P.M’S College of Engineering Malegaon (Bk.), Savitribai Phule Pune University
Email: sspatil@engg.svpm.org.in
ORCID iD: 0000-0002-0547-6038
Ph.D. (Engineering), Professor
India, 413115, India, Pune, MaharashtraDinesh Washimkar
Department of Mechanical Engineering, Vishwakarma Institute of Technology, Savitribai Phule Pune University
Email: dinesh.washimkar@vit.edu
ORCID iD: 0000-0002-1312-2619
Scopus Author ID: 36462257600
Ph.D. (Engineering), Professor
India, 411037, India, Pune, MaharashtraNitin Ambhore
Department of Mechanical Engineering, Vishwakarma Institute of Technology, Savitribai Phule Pune University
Email: nitin.ambhore@vit.edu
ORCID iD: 0000-0001-8468-8057
Scopus Author ID: 56986482000
ResearcherId: GXH-6114-2022
Ph.D. (Engineering), Associate Professor
India, 411037, India, Pune, MaharashtraDhroov Agrawal
Department of Bachelor of Medicine & Bachelor of Surgery, KD Medical College Mathura
Author for correspondence.
Email: dhroovagrawal109@gmail.com
ORCID iD: 0009-0000-8547-9484
Student
India, 281406, India, Uttar PradeshReferences
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