IMC SEMINAR:(PI): A New and Improved Liquid Composite Molding Process

                                                              SEMINAR ANNOUNCEMENT :

Title                : Pressurized Infusion (PI): A New and Improved Liquid Composite Molding Process

Speaker         : Dr.M.Akif YALÇINKAYA

Time               : September 12, 2018, 13:40-14:30

Place              : Teknopark- KTMM

Abstract: 

Vacuum assisted resin transfer molding (VARTM) has several inherent shortcomings such as long mold filling times, low fiber volume fraction, and high void content in fabricated laminates. These problems in VARTM mainly arise from the limited compaction of the laminate and low resin pressure. Pressurized Infusion (PI) molding introduced in this article overcomes these disadvantages by: (i) applying high compaction pressure on the laminate by an external pressure chamber placed on the mold, and (ii) increasing the resin pressure by pressurizing the inlet resin reservoir. The effectiveness of PI molding was verified by fabricating composite laminates at various levels of chamber and inlet pressures and investigating the effect of these parameters on the fill time, fiber volume fraction, and void content. Furthermore, spatial distribution of voids was characterized by employing a unique method, which uses a flatbed scanner to capture the high-resolution planar scan of the fabricated laminates. The results revealed that PI molding reduced fill time by 45%, increased fiber volume fraction by 16%, reduced void content by 98%, improved short beam shear strength by 14%, and yielded uniform spatial distribution of voids compared to those obtained by conventional VARTM.

Biograph:

M. Akif Yalçınkaya received his BSc from ITU Mechanical Engineering in 2010. He pursued graduate studies at Koc University Mechanical Engineering and received his PhD in 2017. During his PhD, his research proposal on the pressurized and heated VARTM was awarded with a scholarship by TUBITAK for a joint research project at the University of Oklahoma, USA. As a visiting research scholar, he spent one year in the USA to complete this project. After completion of his PhD, he worked as a postdoctoral research associate at the University of Oklahoma. His research interests include:

• development of alternative Liquid Composite Molding (LCM) processes, which enable cost-effective manufacturing of high quality composite parts at reduced cycle time,
• investigation on Vacuum Assisted Resin Transfer Molding (VARTM) and Resin Transfer Molding (RTM) processes through modeling, simulation, and experimental analysis,
• design, manufacturing, and characterization of natural fiber (i.e., silk) reinforced composites,
• formation and characterization of PMMA microcapsules containing epoxy resin and carbon nanotubes for self-healing composites, and
• design, manufacturing, and characterization of multifunctional composites with superior mechanical, thermal, and electrical properties.

He has published several journal articles and conference proceedings in reputable international journals and conferences.

Kampüs-Teknopark Arası Araç Bilgisi:

Sabancı Üniversitesi -Teknopark Gidiş 

Teknopark- Sabancı Üniversitesi Dönüş

Araç Hareket Alanı : KTMM Binası Önü