Modification of Milling Tools and their Coating for Machining Sandwich Materials

Abstract:

This article deals with special kind of machining of multi-layer laminar composites called sandwich composites. This material consists of two outer layers that overlap core material at the centre made from a light material. This material is used in the automotive industry in interior parts such as dashboards, decorative parts and panels. The product is folded from thin plastic and aluminum. As customers require high-end quality for higher class-vehicles, machining must be ensured at as high a level as possible to suit customer demands. Appropriate processing methods have been investigated experimentally in order to choose the best tool that would guarantee a consistently high quality of cut depending on high durability. Therefore it is still necessary to permanently test new tools with different types of coating, including thin films and different geometry to achieve the required quality at less clamping milling tools, which need to be changed after some pieces and edge sharpen.

• Periodical: Materials Science Forum (Volume 818)
• Pages: 284-287
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.818.284
• Online since: May 2015
• Authors: Tomas Kroupa*, Tomáš Bakša, Pavel Hanzl, Miroslav Zetek
• Keywords: Automotive, Composite Material, Dashboard, Machining, Milling Tools, Sandwich Materials

References

[1] W.F. Smith, Principles of Materials Science and Engineering, McGraw-Hill, New York, 1990 699–724.

[2] M. El-Gallab, Machining of Al/SiC particulate metal-matrix composites Part I: Tool performance, Canada, (1997).

[3] A. Damian, Determination of the dependence relation for the forces at drilling in composite materials with polimeric matrix and 24 % concentration of glass fibers, Romania, (2011).

[4] O.A. Sokolova, Metal-polymer-metal sandwiches with local metal reinforcements: A study on formability by deep drawing and bending, France, (2011).

DOI: 10.1016/j.compstruct.2011.08.013

[5] L. Librescu, Recent developments in the modeling and behavior of advanced sandwich constructions: a survey, USA, (2000).

[6] Y.W. Kwon, Compressive failure of carbon-foam sandwich composites with holes and/or partial delamination, USA (1997).

[7] C.K. Huang, Quality study of honeycomb core shaping without wax stabilization, Taiwan, (2006).

[8] N.S. Hu, L.C. Zhang, Some observations in grinding uni directional carbon fibre- reinforced plastics, The University of Sydney, Sydney, NSW, (2006).

[9] N. Bhatnagar, On the machining of fiber reinforced plastic composite laminates, India, (1994).

[10] M. Haddad, Study of trimming damages of CFRP structures in function of the machining processes and their impact on the mechanical behavior, France, (2014).