Study on chisel edge drilling behavior and step drill structure on delamination in drilling CFRP
Source abstract
Abstract
Abstract In this paper, a twist drill was used to drill carbon fiber reinforced polymer composite (CFRP) materials to study the influence of the chisel edge drilling behavior on delamination at different parameters. The test results show that a high spindle speed is beneficial to the chisel edge to remove the material when the chisel edge is about to drill the bottom of the plate, and the chisel edge drilling behavior has important effect on delamination. In order to reduce the impact of chisel edge on delamination, three kinds of step drills (different ratio of primary drill bit diameter to secondary drill bit diameter ( k)) were designed to drill CFRP at different cutting parameters. The method of combining theory with practice is used to analyze delamination of step drill, and to optimize the step drill structure. Experimental results demonstrates that the hole entry quality of the step drills are better than that of the twist drill. k has great impacts on hole exit delamination. The step drill, k is about 0.5, can achieve the best hole exit quality under the large processing parameters, therefore it's suitable for drilling of CFRP.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced machining processes and optimization · Advanced Surface Polishing Techniques · Advanced Machining and Optimization Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (35)
Show source-provided references
1. An energy based force prediction method for UD-CFRP orthogonal machining10.1016/j.compstruct.2016.09.051 ↗
2. Numerical analysis of the influence of tool wear and special cutting geometry when drilling woven CFRPs10.1016/j.compstruct.2015.11.065 ↗
3. Influence of machining parameters and new nanocoated tool on drilling performance of CFRP/aluminium sandwich10.1016/j.compositesb.2011.08.054 ↗
4. A neural network thrust force controller to minimize delamination during drilling of graphite-epoxy laminates10.1016/0890-6955(96)00013-2 ↗
5. Measuring delamination in carbon/ epoxy composites using a shadow Moiré laser based imaging technique10.1016/j.compstruct.2005.11.039 ↗
6. A comparative study on tool wear and laminate damage in drilling of carbon-fiber reinforced polymers (CFRP)10.1016/j.compstruct.2016.08.004 ↗
7. Methodology analysis for evaluation of drilling-induced damage in composites10.1007/s00170-014-5616-y ↗
8. Drilling machinability evaluation on new developed high-strength T800S/250F CFRP laminates10.1007/s12541-013-0252-2 ↗
9. Effect of eccentricity of twist drill and candle stick drill on delamination in drilling composite materials10.1016/j.ijmachtools.2004.08.001 ↗
10. Investigation into the effects of drilling parameters on delamination by various step-core drills10.1016/j.jmatprotec.2007.12.057 ↗
11. Drilling thick fabric woven CFRP laminates with double point angle drills10.1016/j.jmatprotec.2012.05.017 ↗
12. Experimental delamination analyses of CFRPs using different drill geometries10.1016/j.compositesb.2012.07.057 ↗
13. Damage investigation in drilling of glass fiber reinforced plastic composite laminates10.1081/AMP-200034486 ↗
14. Drilling of unidirectional glass fiber reinforced plastic (UD-GFRP) composite laminates10.1007/s00170-004-2280-7 ↗
15. Factors affecting the machine-ability of GFR/epoxy composites10.1016/S0263-8223(03)00181-8 ↗
16. Analysis of parametric influence on delamination in high- speed drilling of carbon fiber reinforced plastic composites10.1016/j.jmatprotec.2007.10.050 ↗
17. Some experimental investigation in the drilling of carbon fiber-reinforced plastics (CFRP) composite laminates10.1016/S0890-6955(96)00095-8 ↗
18. New analytical model for delamination of CFRP during drilling10.1016/j.jmatprotec.2016.10.007 ↗
19. Experimental study of drilling composite materials with step-core drill10.1016/j.matdes.2008.03.022 ↗
20. Study on drilling of reinforced plastics (GFRP and CFRP): relation between tool material and wear behavior
21. Effects of high speed in the drilling of glass fibre reinforced plastic: evaluation of the delamination factor10.1016/j.ijmachtools.2007.10.015 ↗
22. Parametric study on thrust force of core drill10.1016/j.jmatprotec.2007.04.062 ↗
23. Machinability characteristics of fibre reinforced plastics composites10.1016/0378-3804(88)90021-6 ↗
24. The effect of chisel length and associated pilot hole on delamination when drilling composite materials10.1016/S0890-6955(03)00127-5 ↗
25. Delamination-free drilling of composite laminates
26. Damage evaluation of drilled carbon/epoxy laminates based on area assessment methods10.1016/j.compstruct.2012.08.003 ↗
27. Delamination analysis of carbon fibre reinforced laminates: evaluation of a special step drill10.1016/j.compscitech.2009.01.025 ↗
28. Effect of induced bending moment (IBM) on critical thrust force for delamination in step drilling of composites10.1016/j.ijmachtools.2012.03.001 ↗
29. Numerical investigation of the effects of drill geometry on drilling induced delamination of carbon fiber reinforced composites10.1016/j.compstruct.2013.04.026 ↗
30. Experimental and numerical analysis of step drill bit performance when drilling woven CFRPs
31. Chisel edge and pilot hole effects in drilling composite laminates10.1115/1.1448317 ↗
32. Numerical prediction of the thrust force responsible of delamination during the drilling of the long-fibre composite structures10.1016/j.compositesa.2006.07.009 ↗
33. Delamination during drilling in composite laminates10.1115/1.2899580 ↗
34. Drilling tool geometry evaluation for reinforced composite laminates10.1016/j.compstruct.2009.10.035 ↗
35. A novel approach based on digital image analysis to evaluate the delamination factor after drilling composite laminates10.1016/j.compscitech.2006.10.009 ↗