KIT | KIT-Bibliothek | Impressum | Datenschutz

Analysis of Basis Weight Uniformity Indexes for the Evaluation of Fiber Injection Molded Nonwoven Preforms

Moll, Patrick; Wang, Shaofan; Coutandin, Sven; Fleischer, Jürgen

Abstract:

Fiber injection molding is an innovative approach for the manufacturing of nonwoven preforms but products currently lack a homogeneous fiber distribution. Based on a mold-integrated monitoring system, the uniformity of the manufactured preforms will be investigated. As no universally accepted definition or method for measuring uniformity is accepted yet, this article aims to find a suitable uniformity index for evaluating fiber injection molded nonwovens. Based on a literature review, different methods are implemented and used to analyze simulated images with given distribution properties, as well as images of real nonwovens. This study showed that quadrant-based methods are suitable for evaluating the basis weight uniformity. It has been found that the indexes are influenced by the number of quadrants. Changes in sample size do not affect the indexes when keeping the quadrant number constant. The quadrants-based calculation of the coefficient of variation showed the best suitability as it shows good robustness and steady index for varying degrees of fiber distribution.


Verlagsausgabe §
DOI: 10.5445/IR/1000142436
Veröffentlicht am 26.01.2022
Originalveröffentlichung
DOI: 10.2478/aut-2020-0039
Scopus
Zitationen: 3
Web of Science
Zitationen: 2
Dimensions
Zitationen: 3
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Produktionstechnik (WBK)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 2300-0929
KITopen-ID: 1000142436
Erschienen in AUTEX research journal
Verlag De Gruyter Open
Band 21
Heft 3
Seiten 341-351
Vorab online veröffentlicht am 21.09.2020
Schlagwörter Fiber injection moldingnonwovensglass fiberpreformbasis weight uniformityimage processing
Nachgewiesen in Web of Science
Dimensions
Scopus
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page