Substituting conventional steel alloys by carbon fibre composites in structural parts of an existing laser cutting equipment

• Type: Article in International Scientific Journal
• Date: 2012

Authors

Vieira, DGP (Author) Other; Meireles, JF (Author) Other; Nunes, JP (Author) Other; da Silva, LFM (Author) FEUP

Journal

Title: Materialwissenschaft und Werkstofftechnik

Vol. 43

Pages: 468-478

ISSN: 0933-5137

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Scientific classification

FOS: Engineering and technology > Materials engineering

Other information

Authenticus ID: P-002-AFY

DOI: 10.1002/mawe.201200983

Abstract (EN): In the present work, a finite element (FE) analysis was employed to validate the use of advanced carbon fibre composites as replacement of traditional low-alloy steel in the construction of the main runway frame structure of a laser cutting equipment currently available in the market. This new composite solution was adopted to increase the current laser equipment precision and cutting speed. The main objective was to enhance the machine cutting performance by using much stiffer and lighter main structural runway frames to support the machine cutting head and all major laser beam mirrors and lens, which allows decreasing dramatically the inertial and vibration efforts developed in service through the use of carbon fibre composites. The paper presents, compares and discusses the mechanical and dynamical behaviour obtained in the FE simulations made by using both solutions, the current one based on a steel frame and the new innovative composite adopted structure. The processing method to be used in the production of the innovative composite structure is also proposed. Finally, as production costs may also have an important impact on final equipment commercial price and acceptation, an economical study considering both manufacturing situations (currently used and new one) are discussed.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11