Influence of inlay consolidation quality on morphology of hybrid injection-moulded parts and their bending behaviour

IF 2.2 3区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Journal of Reinforced Plastics and Composites Pub Date : 2024-07-21 DOI:10.1177/07316844241264598

Hao Wang, Jan Petersen, Kai Fischer, Michael Emonts

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Abstract

This paper investigates the interactions of process parameters along the process chain for the manufacture of a trunk-like injection-moulded component with local inserts of unidirectional thermoplastic tape. In contrast to the established technology for overmoulding continuous fibre reinforced thermoplastics with a high proportion of unidirectional fibres, the component design investigated consists of 99 wt% long fibre injection moulding material reinforced with a very low amount of strip-like inserts of 1 wt% carbon fibre tape. The design facilitates cost, CO2-e and weight reduction compared to a pure injection-moulded part. The process chain comprises laser-assisted tape placement, preforming of the inserts by local bending and finally overmoulding. Particular attention is paid to the effect of the consolidation quality of the inserts after tape placement on the fracture behaviour in two sections of the part, the radii at the bending sections, which are subjected to post-consolidation during preforming, and the flat sections, which are only subjected to potential post-consolidation effects due to overmoulding. The investigations are carried out by means of various bending tests and analysis of the morphology by means of micrographs.

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镶嵌固结质量对混合注塑成型零件形态及其弯曲性能的影响

本文研究了在制造带有单向热塑带局部嵌件的树干状注塑部件时，工艺链上各工艺参数之间的相互作用。与采用高比例单向纤维的连续纤维增强热塑性塑料包覆成型的成熟技术不同，所研究的部件设计由 99 wt%的长纤维注塑成型材料和极少量的 1 wt%碳纤维带条状插入物组成。与纯注塑部件相比，这种设计有利于降低成本、减少二氧化碳排放量并减轻重量。工艺链包括激光辅助胶带放置、通过局部弯曲预成型插入件以及最后的注塑成型。我们特别关注了镶件在贴带后的固结质量对零件两个部分断裂行为的影响，即弯曲部分的半径（在预成型过程中受到后固结的影响）和平面部分（由于过模，只受到潜在的后固结影响）。研究通过各种弯曲试验和显微照片形态分析进行。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Reinforced Plastics and Composites 工程技术-材料科学：复合

CiteScore

5.40

自引率

6.50%

发文量

审稿时长

1.3 months

期刊介绍： The Journal of Reinforced Plastics and Composites is a fully peer-reviewed international journal that publishes original research and review articles on a broad range of today''s reinforced plastics and composites including areas in: Constituent materials: matrix materials, reinforcements and coatings. Properties and performance: The results of testing, predictive models, and in-service evaluation of a wide range of materials are published, providing the reader with extensive properties data for reference. Analysis and design: Frequency reports on these subjects inform the reader of analytical techniques, design processes and the many design options available in materials composition. Processing and fabrication: There is increased interest among materials engineers in cost-effective processing. Applications: Reports on new materials R&D are often related to the service requirements of specific application areas, such as automotive, marine, construction and aviation. Reports on special topics are regularly included such as recycling, environmental effects, novel materials, computer-aided design, predictive modelling, and "smart" composite materials. "The articles in the Journal of Reinforced Plastics and Products are must reading for engineers in industry and for researchers working on leading edge problems" Professor Emeritus Stephen W Tsai National Sun Yat-sen University, Taiwan This journal is a member of the Committee on Publication Ethics (COPE).