Experimental Studies on the Influence of Cutting Parameters on Thrust Force and Torque during Drilling of GFRP with SiC Fillers

2010 ◽  
Vol 443 ◽  
pp. 342-346 ◽  
Author(s):  
Mouleeswaran Senthil Kumar ◽  
Vijayan Krishnaraj
Keyword(s):  
Thrust Force ◽  
Experimental Studies ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Gfrp Composites ◽  
Glass Fiber Reinforced Plastic ◽  
Glass Fiber Reinforced ◽  
Reinforced Plastic ◽  
Twist Drills ◽  
Selection Of

The paper discusses the influence of cutting parameters such as cutting speed, feed rate and point angle on thrust force and torque while drilling of Glass Fiber Reinforced Plastic (GFRP) composites with Silican Carbide (SiC) fillers. The experiments were conducted during the drilling of GFRP with SiC fillers using four standard twist drills of point angles 90º, 100º, 110º and 120º. Conclusions thus drawn are presented and can be useful for the selection of the best cutting parameters.

EXPERIMENTAL STUDIES ON THRUST FORCE AND TORQUE DURING DRILLING OF GLASS FIBER REINFORCED PLASTIC WITH SIC FILLERS

2010 ◽  
Vol 09 (01) ◽  
pp. 63-72 ◽  
Author(s):  
M. SENTHIL KUMAR
Keyword(s):  
Thrust Force ◽  
Experimental Studies ◽  
Cutting Speed ◽  
Gfrp Composites ◽  
Glass Fiber Reinforced Plastic ◽  
Fiber Reinforced Plastic ◽  
Glass Fiber Reinforced ◽  
Reinforced Plastic ◽  
Influencing Parameters ◽  
Twist Drills

The paper discusses the study on thrust force and torque while drilling GFRP composites with SiC fillers. The input parameters such as cutting speed, feed rate and point angle were varied and influencing parameters such as thrust force and torque were studied. The experimental investigation was made during the drilling of GFRP with SiC fillers using four standard twist drills of point angles 90°, 100°, 110° and 120°.

Effect of Cutting Environments on Drilling Induced Damage in GFRP Nanocomposites

2020 ◽  
Author(s):  
Panchagnula Kishore Kumar ◽  
Panchagnula Jayaprakash Sharma
Keyword(s):  
Feed Rate ◽  
Thrust Force ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Machining Process ◽  
Glass Fiber Reinforced Plastic ◽  
Delamination Factor ◽  
Glass Fiber Reinforced ◽  
Solid Carbide ◽  
Torque Values

Abstract Drilling is most commonly used secondary machining process for structural joining of Glass Fiber Reinforced Plastic (GFRP) composites. Performing drilling operations on GFRPs/Multi-Walled CarbonNanoTubes (MWCNTs) reinforced GFRPs is really a challenging task due to their non-homogeneity and anisotropic behavior, which directs to generation of material damages. The prime focus of current work is to identify the suitable process parameters for enhancing the performance of drilling of GFRP nanocomposites. In this study, the drilling experiments are conducted on 0.3wt.% MWCNT-GFRP nanocomposites with solid carbide, TiCN and TiAlN coated drills (6mm diameter) under dry and chilled air cutting environments. The dry drilling experiments are conducted without any assistance of cooling fluid in ambient condition. The chilled air at a temperature of 3°C was supplied from the vortex tube. Experimental data is used for ANOVA (balanced) analysis. The cutting parameters such as feed rate, cutting speed and tool type (coating) are considered as input and the measured thrust force, delamination factor and AE RMS signal are treated as output responses. From ANOVA results, it is observed that the influence of feed rate is more on thrust force as compared to cutting speed. The coefficients of determination (R2) shows good fit between thrust force and cutting parameters and the corresponding confidence levels are above 98% for all cutting environments. Similarly, R2 values of delamination factor and AE RMS signals are above 90% and 96% respectively. The minimum thrust force and torque values are noted as 12.61 N and 0.152 N-m respectively at lower feed rate (10 mm/min) and higher cutting speed (1500 RPM) using TiCN coated drill under chilled air cutting environment. The delamination factor is also low (1.025) under the same cutting conditions of minimum cutting forces. A good correlation exists between the thrust force vs. delamination factor (> 0.85) and the delamination factor vs. AE RMS signal (> 0.80) for the selected cutting environments. The recommended range of RMS voltage is 0.083 to 0.121 volts for producing the delamination free holes on GFRP nanocomposites.

Modelling and Analysis of Wear Prediction in Machining of Nano Based GFRP Composites Using RSM

2015 ◽  
Vol 20 ◽  
pp. 3-11
Author(s):  
A. Saravanapandi Solairajan ◽  
S. Alexraj ◽  
P. Vijaya Rajan ◽  
Godwin Jose
Keyword(s):  
Glass Fiber ◽  
Unsaturated Polyester ◽  
Glass Fibers ◽  
Cutting Speed ◽  
Polycrystalline Diamond ◽  
Cutting Parameters ◽  
Depth Of Cut ◽  
Fiber Reinforced ◽  
Gfrp Composites ◽  
Glass Fiber Reinforced

Glass fiber reinforced composite material was fabricated using E-glass fiber with unsaturated polyester resin. In Glass Fiber Reinforced Plastic (GFRP) composites, the matrix of polymer is reinforced with glass fibers. The surface quality and dimensional precision significantly affect the parts during their suitable life, particularly in cases where the components come in contact with other elements or materials. In the current study, GFRP is machined with two cases i.e. with and without Nano combinations in lathe. These machining studies were carried out on lathe using three different cutting tools: namely Carbide (K-20), Cubic Boron Nitrate (CBN) and Polycrystalline Diamond (PCD). The cutting parameters considered were cutting speed, feed, and depth of cut. Surface Finish is the most important parameter measured by main spindle and compares the value with another. A second order mathematical model in terms of cutting parameters was developed using RSM. The results specify the developed model is suitable for prediction of surface roughness in machining of GFRP composites.

Analysis and modeling of delamination factor in drilling glass fiber reinforced plastic using response surface methodology

2010 ◽  
Vol 45 (6) ◽  
pp. 727-736 ◽  
Author(s):  
Erol Kilickap
Keyword(s):  
Response Surface Methodology ◽  
Glass Fiber ◽  
Response Surface ◽  
Gfrp Composites ◽  
Glass Fiber Reinforced Plastic ◽  
Fiber Reinforced Plastic ◽  
Delamination Factor ◽  
Glass Fiber Reinforced ◽  
Reinforced Plastic ◽  
Drilling Parameters

This study, through a new approach, presents a comprehensive mathematical model for correlating the interactive and higher order influences of drilling parameters on the delamination factor in drilling glass fiber reinforced plastic (GFRP) composites using response surface methodology. The purpose of this article is to investigate the influence of drilling parameters, such as cutting speed, feed, and point angle on delamination produced when drilling GFRP composite. The damage generated associated with drilling GFRP composites were observed, both at the entrance and exit during the drilling. The experiments are conducted based on Box—Behnken design. Empirical models are developed to correlate and predict the drilling parameters and delamination factor in drilling of GFRP. The developed models for delamination factor at entrance and exit are proposed that agree well with the experiment. The models can be utilized to select the level of drilling parameters. Thus time and cost were noticeably reduced.

Online Monitoring of Drilling-Induced Delamination of Composite Materials by Acoustic Emission

2012 ◽  
Author(s):  
Navid Zarif Karimi ◽  
Hossein Heidary ◽  
Mehdi Ahmadi Najafabadi ◽  
Parnian Kianfar ◽  
Giangiacomo Minak ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Composite Materials ◽  
Thrust Force ◽  
Drilling Process ◽  
Glass Fiber Reinforced Plastic ◽  
Glass Fiber Reinforced ◽  
Reinforced Plastic ◽  
On Line ◽  
Best Parameter ◽  
Drilling Conditions

Drilling composite materials is one of the primary processes of manufacturing industrial structures. The ultimate goal towards on-line monitoring of composites drilling is in order to produce damage free high quality drilled holes. In the present investigation, the acoustic emission (AE) technique was applied for monitoring the drilling-induced delamination. Delamination is major damage mechanisms in glass fiber reinforced plastic (GFRP) laminates correlated with the thrust force during drilling process. By feature extraction of AE time domain, root mean square (RMS) is selected as the best parameter to monitor thrust force variations. The experimental results show that AE is very sensitive to the response of the drilling conditions.

scholarly journals Evaluation of Factors Affecting Delamination, Tensile Strength, Thrust Force and Surface Roughness in Drilling of GFRP

2021 ◽  
Author(s):  
Erol KILICKAP ◽  
Yahya Hışman Celik ◽  
Burak Yenigun
Keyword(s):  
Surface Roughness ◽  
Tensile Strength ◽  
Feed Rate ◽  
Thrust Force ◽  
Cutting Temperature ◽  
Cutting Speed ◽  
Gfrp Composites ◽  
Glass Fiber Reinforced Plastic ◽  
Delamination Factor ◽  
Drilling Parameters

Abstract The drilling operation of glass fiber reinforced plastic (GFRP) composites has gained importance because they are used as structural components in many industries such as aerospace and aviation. In the drilling of GFRP composites, some problems such as deformation and fiber breakage occur. Thrust force, delamination, surface quality and cutting temperature are affected by drilling parameters and woven types in the drilling of GFRP composites. At the same time, delamination also affects tensile strength. In this study, the effects of drilling parameters and woven types of GFRP composites on thrust force, surface roughness, delamination factor, and cutting temperature were examined in the drilling of GFRP composites produced in unidirectional (UD), ± 45º and 0°/90º woven types. The effects of drilling parameters and the delamination factor on the tensile strength of the drilled specimen were also investigated. The result of this study indicated that thrust force, delamination factor, and surface roughness increased with increasing cutting speed and feed rate. An increase in feed rate decreased the cutting temperature while an increase in cutting speed increased the cutting temperature. Also, it was found that the delamination had a critical influence on the tensile strength of the GFRP composites.

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