Hot incremental forming of biocomposites developed from linen fibres and a thermoplastic matrix

Torres, Sandino (author), Ortega, Roberto (author), Acosta, Pablo (author), Calderón, Edisson (author)

The use of biodegradable materials has a growing field of application due to environmental concerns, however, scientific research on incremental forming using biomaterials is scarce. Thus, this study focuses on the single point incremental forming (SPIF) process applied to a composite sheet that combines a biodegradable thermoplastic matrix (Solanyl) reinforced with natural fibres (flax). The influence of the process parameters on the final geometry is determined, evaluating the effect of the following factors: step depth, wall angle and temperature reached during the process. Additionally, a heated aqueous medium is incorporated which facilitates the formability of the composite sheets. This method is especially useful for materials that have poor formability at room temperature. The benefits of using controlled heat include the reduction of formation forces applied to the plate, improved accuracy due to the reduction of elastic recovery, and the manipulation of the samples remarkably close to the glass transition temperatures. Through this experimental study with the variables analysed, a maximum shaping depth of 310 mm is obtained. These results confirm that the single point shaping used with bioplastic materials is possible and has positive outcomes for incremental forming.

• Language: English
• Keywords: incremental forming, bio-composites, hot formability, analysis of variance, deformation
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2021
• Number of pages: Str.123-132
• Numbering: Vol. 67, no. 3
• PID: 20.500.12556/RUL-128201
• UDC: 621.7.01:539.37
• ISSN on article: 0039-2480
• DOI: 10.5545/sv-jme.2020.6936
• COBISS.SI-ID: 69395203
• Publication date in RUL: 06.07.2021

Record is a part of a journal

• Title: Strojniški vestnik
• Shortened title: Stroj. vestn.
• Publisher: Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
• ISSN: 0039-2480
• COBISS.SI-ID: 762116

Secondary language

• Language: Slovenian
• Title: Vroče inkrementalno preoblikovanje biokompozitov iz lanenih vlaken in termoplastične matrice
• Keywords: inkrementalo preoblikovanje, biokompoziti, vroče preoblikovanje, analiza variance, deformacija