Studies on fibre spray-up with oriented carbon fibres for high volume production of automotive composite-components
(2016) MMK820 20121Innovation
- Abstract
- Due to their outstanding mechanical properties, fibre reinforced materials allow a
substantial reduction of mass for modern vehicles, thus making energy-efficient
mobility viable. However, the cost for material and manufacturing of parts made out
of carbon exceed the allowable costs for a broad market. New preforming
technologies offer a potential to manufacture composite parts in a highly automated
fashion with short cycle times, consequently reducing costs to a reasonable level. In
direct fibre performing, as one of these manufacturing methods, chopped fibres are
deposited on a tool and subsequently consolidated to a preform, which can be
processed further by a liquid resin infusion process.
This Master thesis introduces a... (More) - Due to their outstanding mechanical properties, fibre reinforced materials allow a
substantial reduction of mass for modern vehicles, thus making energy-efficient
mobility viable. However, the cost for material and manufacturing of parts made out
of carbon exceed the allowable costs for a broad market. New preforming
technologies offer a potential to manufacture composite parts in a highly automated
fashion with short cycle times, consequently reducing costs to a reasonable level. In
direct fibre performing, as one of these manufacturing methods, chopped fibres are
deposited on a tool and subsequently consolidated to a preform, which can be
processed further by a liquid resin infusion process.
This Master thesis introduces a concept for manipulating carbon fibres into
predefined orientations. Methods for achieving that bias are presented, as well as
requirements to such methods. Furthermore the analysis, selection and experimental
verification of such methods are described.
Experimental studies show the feasibility of obtaining predefined fibre orientations
under the influence of electrical fields. The achievable fibre orientation is increasing
with field intensity and fibre length and tapers with bundle size. However, the desired
degree of fibre orientation has not been accomplished yet with the current test
equipment.
Following the experimental verification a comparison to the known method of
mechanical fibre alignment is drawn pointing out possibilities and challenges for
future developments. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9004928
- author
- Borchert, Benedikt
- supervisor
- organization
- course
- MMK820 20121
- year
- 2016
- type
- H2 - Master's Degree (Two Years)
- subject
- language
- English
- id
- 9004928
- date added to LUP
- 2020-02-12 15:00:10
- date last changed
- 2020-02-12 15:00:10
@misc{9004928, abstract = {{Due to their outstanding mechanical properties, fibre reinforced materials allow a substantial reduction of mass for modern vehicles, thus making energy-efficient mobility viable. However, the cost for material and manufacturing of parts made out of carbon exceed the allowable costs for a broad market. New preforming technologies offer a potential to manufacture composite parts in a highly automated fashion with short cycle times, consequently reducing costs to a reasonable level. In direct fibre performing, as one of these manufacturing methods, chopped fibres are deposited on a tool and subsequently consolidated to a preform, which can be processed further by a liquid resin infusion process. This Master thesis introduces a concept for manipulating carbon fibres into predefined orientations. Methods for achieving that bias are presented, as well as requirements to such methods. Furthermore the analysis, selection and experimental verification of such methods are described. Experimental studies show the feasibility of obtaining predefined fibre orientations under the influence of electrical fields. The achievable fibre orientation is increasing with field intensity and fibre length and tapers with bundle size. However, the desired degree of fibre orientation has not been accomplished yet with the current test equipment. Following the experimental verification a comparison to the known method of mechanical fibre alignment is drawn pointing out possibilities and challenges for future developments.}}, author = {{Borchert, Benedikt}}, language = {{eng}}, note = {{Student Paper}}, title = {{Studies on fibre spray-up with oriented carbon fibres for high volume production of automotive composite-components}}, year = {{2016}}, }