Aspects of Machining Parameter Effect on Cut Quality in Abrasive Water Jet Cutting

2015 ◽  
Vol 809-810 ◽  
pp. 201-206
Author(s):  
Predrag Janković ◽  
Miroslav Radovanović ◽  
Oana Dodun ◽  
Miloš Madić ◽  
Dušan Petković
Keyword(s):  
Great Influence ◽  
Traverse Speed ◽  
Water Jet ◽  
Machining Parameters ◽  
Abrasive Water Jet ◽  
Abrasive Water Jet Machining ◽  
Water Jet Cutting ◽  
Abrasive Water Jet Cutting ◽  
Cut Quality ◽  
Machining Parameter

Abrasive water jet machining is frequently used in industry. It is one of the most versatile processes in the world. The basic advantages of abrasive water jet machining is that no heat affected zones or mechanical stresses are left on an abrasive water jet cut surface, high flexibility and small cutting forces. Although this cutting technology includes many advantages, there are some drawbacks. For instance, abrasive water jet cutting can produce tapered edges on the kerf of workpiece being cut. This can limit the potential applications of abrasive water jet cutting, if further machining of the edges is needed to achieve the engineering tolerance required for the part. The machining parameters have a great influence on these phenomena. The aim of this paper is to investigate the cut quality of EN AW-6060 aluminium alloy sheets under abrasive water jets. The experimental results indicate that the feed rate (nozzle traverse speed) of the jet is a significant parameter on the surface morphology.

Experimental Analysis of Hole Making in GFRP Composite Using Abrasive Water Jet Cutting Technology

2013 ◽  
Vol 325-326 ◽  
pp. 1392-1398 ◽  
Author(s):  
Hussein M. Ali ◽  
Asif Iqbal ◽  
Majid Hashemipour
Keyword(s):  
Composite Materials ◽  
Water Jet ◽  
Cutting Process ◽  
Machining Parameters ◽  
Abrasive Water Jet ◽  
Water Jet Cutting ◽  
Abrasive Water Jet Cutting ◽  
Gfrp Composite ◽  
Hole Making ◽  
Response Variables

Machining of composite materials for the production of bolt holes is essential in the assembly of the structural frames of many industrial applications of GFRP. Abrasive water jet cutting technology has been used in industry for such purposes. This technology has procured many overlapping applications and as the life of the joint in the assemble structure can be critically affected by the quality of the holes, it is thus important for the industry to understand the application of abrasive water jet cutting process on GFRP composite materials. The aim of the present work is to to assess the influence of abrasive water jet machining parameters on hole making process of woven laminated GFRP material. Statistical approach was used to understand the effects of the predicted variables on the response variables. Analysis of variance (ANOVA) was performed to isolate the effects of the parameters affecting the hole making in abrasive water jet. The result shows that cutting feed, water jet pressure, standoff distance and abrasive flow rate are influential parameters upon the response variables of the abrasive water jet cutting process of GFRP composite, type 3240.

scholarly journals Analyses of Vibration Signals Generated in W. Nr. 1.0038 Steel during Abrasive Water Jet Cutting Aimed to Process Control

Materials ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 345
Author(s):  
Martin Tyč ◽  
Irena M. Hlaváčová ◽  
Pavel Barták
Keyword(s):  
Traverse Speed ◽  
Water Jet ◽  
Vibration Monitoring ◽  
Abrasive Water Jet ◽  
Vibration Signals ◽  
Water Jet Cutting ◽  
Abrasive Water Jet Cutting ◽  
Evaluation Of Data ◽  
Awj Cutting ◽  
The Relationship

The presented research was aimed at finding a suitable tool and procedure for monitoring undercuts or other problems such as cutting without abrasive or inappropriate parameters of the jet during the abrasive water jet (AWJ) cutting of hard-machined materials. Plates of structural steel RSt 37-2 of different thickness were cut through by AWJ with such traverse speeds that cuts of various qualities were obtained. Vibrations of the workpiece were monitored by three accelerometers mounted on the workpiece by a special block that was designed for this purpose. After detecting and recording vibration signals through the National Instruments (NI) program Signal Express, we processed this data by means of the LabVIEW Sound and Vibration Toolkit. Statistical evaluation of data was performed, and RMS was identified as the parameter most suitable for online vibration monitoring. We focus on the analysis of the relationship between the RMS and traverse speed.

scholarly journals Roughness Parameters Calculation By Means Of On-Line Vibration Monitoring Emerging From AWJ Interaction With Material

2015 ◽  
Vol 22 (2) ◽  
pp. 315-326 ◽  
Author(s):  
Pavol Hreha ◽  
Agata Radvanska ◽  
Lucia Knapcikova ◽  
Grzegorz M. Królczyk ◽  
Stanisław Legutko ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Traverse Speed ◽  
Water Jet ◽  
Abrasive Water Jet ◽  
Roughness Parameters ◽  
Cutting Head ◽  
Surface Roughness Parameters ◽  
Water Jet Cutting ◽  
Abrasive Water Jet Cutting ◽  
On Line

Abstract The paper deals with a study of relations between the measured Ra, Rq, Rz surface roughness parameters, the traverse speed of cutting head v and the vibration parameters, PtP, RMS, vRa, generated during abrasive water jet cutting of the AISI 309 stainless steel. Equations for prediction of the surface roughness parameters were derived according to the vibration parameter and the traverse speed of cutting head. Accuracy of the equations is described according to the Euclidean distances. The results are suitable for an on-line control model simulating abrasive water jet cutting and machining using an accompanying physical phenomenon for the process control which eliminates intervention of the operator.

Artificial Intelligence Model for the Prediction of Cut Quality in Abrasive Water Jet Cutting

2014 ◽  
Vol 657 ◽  
pp. 206-210 ◽  
Author(s):  
Miloš Madić ◽  
Predrag Janković ◽  
Laurenţiu Slătineanu ◽  
Miroslav Radovanović
Keyword(s):  
Artificial Intelligence ◽  
Flow Rate ◽  
Water Jet ◽  
Percentage Error ◽  
Abrasive Water Jet ◽  
Ann Model ◽  
Workpiece Material ◽  
Water Jet Cutting ◽  
Abrasive Water Jet Cutting ◽  
Cut Quality

In abrasive water jet cutting, the cut quality is of great importance. In this paper, artificial intelligence model was developed for the prediction of cut quality in abrasive water jet cutting of aluminum alloy. To this aim, artificial neural network (ANN) model was developed in terms of workpiece material thickness, traverse rate and abrasive flow rate. Three-layered feedforward ANN model having four hidden neurons trained with backpropagation algorithm with momentum was used for modeling purposes. The mathematical model showed high prediction accuracy with average absolute percentage error of about 3 %. Using the developed ANN model, 3-D graphs, showing the interaction effects of the traverse rate and abrasive flow rate for three different thicknesses, were given. It was showed that ANNs may be used as a good alternative in analyzing the effects of abrasive water jet cutting parameters on the cut quality characteristics.

Surface Roughness Characterization of Medical Implant Material SS316L Stainless Steel after Cut with Water Jet Cutting Process

2020 ◽  
Vol 867 ◽  
pp. 182-187
Author(s):  
Teguh Dwi Widodo ◽  
Rudianto Raharjo ◽  
Muhammad Zaimi
Keyword(s):  
Surface Roughness ◽  
Traverse Speed ◽  
Water Jet ◽  
Cutting Process ◽  
Abrasive Water Jet ◽  
Medical Implant ◽  
Implant Material ◽  
Water Jet Cutting ◽  
Abrasive Water Jet Cutting ◽  
Study Results

In this paper, the effect of abrasive water jet cutting process on the surface character of medical implant SS316L was investigated. This research focuses on the effect of traverse speed during abrasive water jet cutting on the surface roughness and topography of medical implant material SS316L. In some study, it has been noted that the roughness of implant material correlates with the healing process of a sufferer in medical application. Furthermore, transverse speed has an important role in the manufacturing process that correlates directly with the ability of technic to produce a product at a definite time. Garnet was used as an abrasive material in this water jet cutting process. The process was taking place in room temperature with 3000Psi of water pressure. In this study, the surface roughness was examined at all point of depth of the cut surface in all of the transverse speed using Mitutoyo SJ 210, while the surface topography observed by Olympus BX53M optical microscope. The study results reveal that traverse speed has a significant effect on the surface roughness at the surface, middle, and bottom of the cut point. The Surface roughness increase as transverse speed.

scholarly journals Jet lagging in abrasive water jet cutting of high-speed tool steel

2021 ◽  
Vol 27 (2) ◽  
pp. 73-80
Author(s):  
Ramiz Kurbegovic ◽  
Mileta Janjic
Keyword(s):  
High Speed ◽  
High Speed Steel ◽  
Traverse Speed ◽  
Water Jet ◽  
Abrasive Waterjet ◽  
Depth Of Cut ◽  
Machining Parameters ◽  
Abrasive Water Jet ◽  
Working Pressure ◽  
Water Jet Cutting

Abrasive water jet machining is a very efficient unconventional method for contour cutting of different types of materials. As one of the main characteristics of the quality of surfaces machined with this method is curved lines that appear during machining. These lines are a consequence of the deviation of the abrasive water jet from its ideal vertical line, jet lagging, which are the cause of machining errors. The aim of this work is to investigate the influence of machining parameters on jet lagging. The samples of high-speed steel EN HS6-5-2 (JUS c.7680) were machined with an abrasive water jet under varying working pressure, traverse speed, abrasive mass flow rate, and stand-off distance. The jet lagging was measured at twenty places along with the depth of cut, and based on these results, the relationship between the jet lagging and machining parameters has been formed. In order to correctly select the process parameters, an empirical model for the prediction of jet lagging in abrasive waterjet cutting of high-speed steel EN HS6-5-2 was developed using regression analysis. This developed model has been verified with the experimental results that reveal high applicability of the model within the experimental range used.

scholarly journals Abrasive Water Jet Cutting of Stainless-Steel Optimization by Orthogonal Array Approach

2019 ◽  
Vol 71 (1) ◽  
pp. 55-61
Author(s):  
Andrzej Perec ◽  
Aleksandra Radomska-Zalas
Keyword(s):  
Stainless Steel ◽  
Traverse Speed ◽  
Water Jet ◽  
Maximum Depth ◽  
Depth Of Cut ◽  
Process Conditions ◽  
Machining Parameters ◽  
Abrasive Water Jet ◽  
Cutting Depth ◽  
Water Jet Cutting

Abstract The paper presents the use of Taguchi method to optimize the cutting of stainless steel by Abrasive Water Jet. Shown are the influence of the most important machining parameters, such a traverse speed, abrasive grains size and concentration of abrasive in the jet on the maximum depth of cut. Analysis of variance - ANOVA was used to determine the effect of machining parameters on the cutting depth. Based on the calculated signal/noise ratios for individual parameters of the cutting process, their impact on cutting depth was determined and optimal process conditions were determined in order to reach the maximum depth of cut. The empirical verification of this process was also performed by comparing the depth of cut predicted and achieved in the tests.

Exploration on Surface Roughness in Abrasive Water Jet Cutting of AA6063-TiC Composites for Vehicle Structural Applications

2019 ◽  
Vol 11 (4) ◽  
Author(s):  
S. Saravanan ◽  
V. Vijayan ◽  
A.V. Balan ◽  
T. Sathish ◽  
A. Parthiban
Keyword(s):  
Surface Roughness ◽  
Mesh Size ◽  
Traverse Speed ◽  
Stir Casting ◽  
Water Jet ◽  
Abrasive Water Jet ◽  
Water Jet Cutting ◽  
Abrasive Water Jet Cutting ◽  
Structural Applications ◽  
Different Levels

This paper deals a set of studies performed on AA6063-TiC composites produced by adding 3%, 6% and 9% wt. of TiC in aluminium alloy 6063 and processed with abrasive water jet cutting that are formed with garnet abrasive of 80 mesh size. These studies are effectively meant to evaluate the surface roughness (Ra) of abrasive water jet cutting on various compositions of AA6063-TiC produced by stir casting route. Abrasive water jet cutting was carried out on cylindrical samples of various compositions of AA6063-TiC composites by varying traverse speed, stand-off distance and abrasive flow rate at three different levels. The experiments were performed using Taguchi’s L27 orthogonal array. Contribution of these parameters on the Ra was determined by ANOVA and regression analysis to optimize the process parameters for effective machining. Among the interaction effects, traverse speed and stand-off distance combinations contribute more to the Ra. The microstructures of machined surfaces were also analysed by scaning electron microscope images and F-profile plots.

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