Selective reinforcement of steel with CF/PA 6 composites in a laser tape placement process: Effect of surface preparation and laser angle on interfacial bond strength

Chris Stokes-Griffin, Stefan Ehard, Andreas Kollmannsberger, Paul Compston, Klaus Drechsler

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

This paper investigates the possibility of manufacturing hybrid metal/composite laminates in a laser tape placement process. Unidirectionally reinforced carbon fibre/PA 6 composite tapes were applied to 2.0 mm mild steel substrates. The effect of two surface treatments to the steel substrates were investigated 1) grit blast and 2) application of a 60 μm PA 6 film. The effect of laser bias angle was also studied. The interfacial bond strength of the hybrid laminates was determined by means of lap shear tests following the ASTM D 5868 standard. Direct placement onto steel was unsuccessful due to the high laser reflectivity, however placement onto PA 6 coated substrates was successful due to increased laser absorptance. The lap shear strengths as high as 29.5 MPa were achieved for grit blasted and PA 6 coated substrates. The process was found to have a low sensitivity to laser bias angle.

Original languageEnglish
Title of host publicationECCM 2016 - Proceeding of the 17th European Conference on Composite Materials
PublisherEuropean Conference on Composite Materials, ECCM
ISBN (Electronic)9783000533877
StatePublished - 2016
Event17th European Conference on Composite Materials, ECCM 2016 - Munich, Germany
Duration: 26 Jun 201630 Jun 2016

Publication series

NameECCM 2016 - Proceeding of the 17th European Conference on Composite Materials

Conference

Conference17th European Conference on Composite Materials, ECCM 2016
Country/TerritoryGermany
CityMunich
Period26/06/1630/06/16

Keywords

  • Automated Tape Placement (ATP)
  • Carbon fibre
  • PA 6
  • Selective reinforcement
  • Steel

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