i – MESCON 18

A COMPARATIVE STUDY ON TOOL WEAR AND LAMINATE DAMAGE IN DRILLING OF CARBON-FIBER REINFORCED POLYMERS (CFRP) (141350)

DOI :

Abstract : Preliminary to successful assembling, drilling of composites like carbon-fiber reinforced polymers (CFRP) is an important but difficult process. The anisotropic and heterogeneous structure of the laminates and the highly abrasive nature of the carbon fibers make it prone to critical damages in the work piece as well as extensive tool wear. In this work, drill series with uncoated and diamond coated tungsten carbide hard metal tools were performed in two CFRP laminates with significant differences in their microstructure. The tool wear behaviour and the corresponding work piece damage were intensively studied to figure out the correlations between wear on light optical microscopy were applied and critically evaluated and delamination damage. The abrasive tool wear on uncoated carbide drill can be well described by the cutting edge rounding (CER) allowing strong correlations with the inflicted work piece damage, whereas for coated tools measuring CER is not an appropriate method. The mach inability of CFRP was found to be highly influenced by the presence of residual porosity in the composite laminate. Hence, the benefit in lifetime of the diamond coating can only be utilized in machining of high quality laminates.[1]

Pages : 9-15

Downloads : 1

Publication Date :

Modified Date : 2019-01-03

Cite/Export :

Ritesh Nimba Patil , Vaibhav S Warule , "A COMPARATIVE STUDY ON TOOL WEAR AND LAMINATE DAMAGE IN DRILLING OF CARBON-FIBER REINFORCED POLYMERS (CFRP)", IJIERT - International Journal of Innovations in Engineering Research and Technology, i – MESCON 18, ISSN : 2394-3696, Page No. 9-15