Influence of tool material on dynamics of drilling of GFRP composites

Drilling trials have been carried out on glass Fibre reinforced plastics (GFRP) with plain high speed steel (HSS), TiN coated HSS and tipped tungsten carbide drills. Most of the defects in drilling of composites are due to thrust force experienced by the workpiece. The parametric influence on cutting force was experimentally evaluated. The experimental results show that the defects toleranced drilling can be attained by proper selection of cutting parameters and tool material. This is substantiated by monitoring flank wear, hole shrinkage and acoustic emission during drilling.

[1]  A. Sherif El-Gizawy,et al.  An approach for development of damage-free drilling of carbon fiber reinforced thermosets , 2001 .

[2]  Usama A. Khashaba.  Delamination in drilling GFR-thermoset composites , 2004 .

[3]  Hong Hocheng,et al.  Delamination During Drilling in Composite Laminates , 1990 .

[4]  Wen-Chou Chen,et al.  Prediction of the location of delamination in the drilling of composite laminates , 1997 .

[5]  Jose Mathew,et al.  Investigations into the effect of geometry of a trepanning tool on thrust and torque during drilling of GFRP composites , 1999 .

[6]  Ichiro Inasaki,et al.  Monitoring System for Cutting Tool Failure Using an Acoustic Emission Sensor : Vibration, Control Engineering, Engineering for Industry , 1987 .

[7]  W. König,et al.  Quality Definition and Assessment in Drilling of Fibre Reinforced Thermosets , 1989 .

[8]  Some studies on drilling of fibrous composites , 1990 .

[9]  J. Paulo Davim,et al.  Experimental study of drilling glass fiber reinforced plastics (GFRP) manufactured by hand lay-up , 2004 .

[10]  Hong Hocheng,et al.  Taguchi analysis of delamination associated with various drill bits in drilling of composite material , 2004 .

[11]  Dave Kim,et al.  A study on the drilling of composite and titanium stacks , 2001 .

[12]  V. Tagliaferri,et al.  Effect of drilling parameters on the finish and mechanical properties of GFRP composites , 1990 .

[13]  D. Bhattacharyya,et al.  A study of hole drilling in Kevlar composites , 1998 .

[14]  S. H. Cheraghi,et al.  The application of acoustic emission for precision drilling process monitoring , 1999 .

[15]  R. Krishnamurthy,et al.  Acoustic Emission Studies on Carbon/Phenolic Ablative Composites using PCD and PCBN Tools , 1999 .

[16]  C. Murthy,et al.  Application of acoustic emission in drilling of composite laminates , 2000 .

[17]  F. Veniali,et al.  Cutting mechanisms in drilling of aramid composites , 1991 .

[18]  V. Tagliaferri,et al.  Damage development in drilling glass fibre reinforced plastics , 1995 .

[19]  C. K. H. Dharan,et al.  Machining parameters for an intelligent machining system for composite laminates , 2000 .

[20]  C. K. H. Dharan,et al.  Fracture Mechanics of Composite Materials , 1978 .

[21]  D. C. H. Yang,et al.  Delamination-Free Drilling of Composite Laminates , 1994 .

[22]  F. Lachaud,et al.  Drilling of composite structures , 2001 .