scholarly journals Investigating Parameters That Effect to Wear of Plasma Nozzle

2018 ◽  
Vol 213 ◽  
pp. 01010 ◽  
Author(s):  
Paphakorn Pitayachaval ◽  
Muhammatsoifu Sato
Keyword(s):  
Cutting Speed ◽  
Cutting Parameters ◽  
Gas Pressure ◽  
Plasma Cutting ◽  
Cnc Machine ◽  
Cutting Machine ◽  
Cutting Surface ◽  
Nozzle Wear ◽  
Digital Microscope ◽  
Relationship Of

Plasma cutting machine normally applies to cut metal in electrical conductivity industrial according to an accuracy dimension and rapidly time consuming. A quality of this process is depend upon a cutting surface and kerf by controlling diameter of nozzle and size of electrode. Since kerf shape is crated base on nozzle diameter, while electrode is served plasma arc. This paper presents an investigating three cutting parameters: cutting speed, pressure gas, current ampere that affect to wear of plasma nozzle. The fixed variables are a plasma-cutting machine, Hypertherm powermax 45 xp, Bindee control CNC machine and specimens (100×100 mm.). The cutting speed was holed at 200, 300, 400 mm/min. The gas pressure was controlled at 6, 7, 8 bar. The current Ampere was handled at 40, 42, 45 A. The diameters of nozzle was measured using digital microscope. The experiments conducted based on ANOVA to establish the relationship of those parameters. The nozzle wear depended upon the current Ampere, the high gas pressure while the cutting speed was not effect to nozzle wear.

Investigating Plasma-Nozzle Wear Based on Processing Time and Current Ampere

2020 ◽  
Vol 987 ◽  
pp. 171-176
Author(s):  
Paphakorn Pittayachaval ◽  
Yanisa Aupkaew ◽  
Sirinat Sakhonkhan ◽  
Thittaya Sukan ◽  
Chirathorn Patchaikhonang
Keyword(s):  
Processing Time ◽  
Low Carbon Steel ◽  
Plasma Cutting ◽  
Low Carbon ◽  
Cnc Machine ◽  
Cutting Machine ◽  
Nozzle Wear ◽  
Digital Microscope ◽  
Relationship Of ◽  
Cutting Path

Plasma cutting machine widely uses in electrical conductivity industrial according to an accuracy dimension and minimum time consuming. A cutting surface and kerf are keys process parameter to establish process quality by controlling diameter of nozzle and size of electrode. Since kerf shape is crated base on nozzle diameter, while electrode is served plasma arc. This paper presents an investigating nozzle wear based on current ampere and processing time. The controlled variables are a plasma-cutting machine, Hypertherm powermax 45 xp, Bindee control CNC machine and cutting path as whorl specimen of low carbon steel. The current Ampere was handled at 35, 40, 45 A. The processing time was controlled at 1, 2, 3, 4, 5 minutes. The diameters of nozzle were measured using digital microscope. The experiments conducted based on ANOVA to establish the relationship of those parameters. The nozzle wear depended upon the current Ampere and processing time in which a regression equation was presented as a result.

scholarly journals Influences on plasma cutting quality on CNC machine

2019 ◽  
Vol 2 (1) ◽  
pp. 108-117
Author(s):  
Lukas Kudrna ◽  
Jiri Fries ◽  
Marek Merta
Keyword(s):  
Cutting Speed ◽  
Sheet Thickness ◽  
Cutting Parameters ◽  
Plasma Source ◽  
Plasma Cutting ◽  
Plasma Arc ◽  
Cnc Machine ◽  
Electrically Conductive ◽  
Number Of Factors

Abstract This article discusses plasma cutting technology and its influences on the quality of the resulting cut. Plasma or a plasma arch consists of positive and negatively charged particles, excited and neutral atoms and molecules. As it contains free particles, it is electrically conductive and thus subject to the effects of the electrical and magnetic field. The basis of CNC machine design is described in the article, which has at least 3 axes (x, y, z), but there are also more technologically demanding applications, such as pipe cutting, profile and cutting using chamfer to prepare surfaces for welding, where these multi-axis devices are frequently used. The principle of plasma cutting and the plasma cutting phase is described in this article. The materials that can be divided by a plasma arc are described in detail, including graphs displaying the dependence of sheet thickness on the cutting speed. The article describes and lists the gases that are used in plasma-arc cutting, such as oxygen, argon, hydrogen and nitrogen. Important components of plasma cutting technology are the parameters that can be adjusted and set before the cutting so that the cut is of good quality. The most comprehensive chapter deals with the influences that affect plasma cutting quality. Cutting quality can be influenced by a number of factors. Everything starts with the proper choice of a CNC machine and a plasma source. The quality also depends on the expertise and experience of the machine operator and the setting of the plasma cutting parameters. This issue of influences on the plasma cutting quality is based on long-term experience in the field of the thermal cutting process.

Analysis and Experimental Design of Damper System and Cutting Parameters of CNC Router

2019 ◽  
Vol 894 ◽  
pp. 82-89
Author(s):  
Van Thuy Tran ◽  
Huu Loc Nguyen ◽  
Hoang Hiep Nguyen
Keyword(s):  
Dynamic Behavior ◽  
Feed Rate ◽  
Vibration Amplitude ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Cnc Machine ◽  
Cutting Depth ◽  
System Effect ◽  
Comparison Results ◽  
Spindle Vibration

. An understanding of the dynamic characteristics of a CNC machine is a vital element in the control of the machine which has a direct effect on the machining precision. The ways in which energy is dissipated, such as friction and damping, have a significant effect on the dynamic behavior and spindle vibration of a CNC machine. The paper presents kinetic analysis of the CNC machine damper system, effect of the damper and the cutting parameters such as feed rate, cutting speed, and cutting depth on the dynamic behavior and spindle vibration of a CNC machine. Experimental results have established a second-order regression equation that demonstrates the effect of three parameters such as feed rate, cutting speed, and cutting depth on the vibration amplitude of the spindle. In addition, the comparison results show that the spindle head vibration amplitude of the machine using the damper is smaller than the spindle head vibration amplitude of the machine not using the damper.

The Study of Bone Cutting Force with FEM

2014 ◽  
Vol 974 ◽  
pp. 389-393 ◽  
Author(s):  
Sen Liu ◽  
Dong Mei Wu ◽  
Jun Zhao
Keyword(s):  
Finite Element ◽  
Cutting Force ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Element Model ◽  
Cutting Surface ◽  
On Line ◽  
Force Velocity ◽  
Optimization Of Cutting Parameters

In orthopedic surgery, it is easy to do harm to surrounding tissues, so the study of bone cutting is necessary. In this article, a finite element model (FEM) of orthogonal bone cutting is developed. Cutting force intra-operatively can provide the surgeon with additional on-line information to support him to control quality of cutting surface. The obtained cutting force decreased little with cutting speed increasing, but ascended evidently with cutting depth increasing. The results of finite element simulations are aimed at providing optimization of cutting parameters and the basic information for hybrid force-velocity control of a robot-assisted bone milling system.

scholarly journals Reducing Cycle Time of Machining a Manifold on a CNC Machine

2020 ◽  
Vol 5 (4) ◽  
pp. 37-52
Author(s):  
Rahul Aggarwal ◽  
◽  
Mehul Soni ◽  
Pranjal Singh ◽  
A K Madan
Keyword(s):  
Cycle Time ◽  
Capital Investment ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Cnc Machining ◽  
Depth Of Cut ◽  
Cnc Machine ◽  
Management Level ◽  
Set Up ◽  
Machining Productivity

This report focuses on the different methods to improve productivity at the management level, at the machine shop, and of machining methods. The various parameters affecting machining productivity i.e., cycle time, set-up time, idle time, operator skill level, etc. including how CNC machining helps in optimizing these parameters are discussed and analyzed in this paper. The effect of different cutting parameters like cutting speed, feed rate, depth of cut, the effect of coolant, etc. is also examined. Various methods of machining for different processes which help to improve the productivity of the process are explored. A case study on machining of an aluminum manifold is done in which the existing process for machining is analyzed and various experiments are performed in order to find out the optimum cutting parameters and minimizing the cycle time of production of the manifold. The result helps to reduce the cycle time by a significant amount thereby reducing the total cost of production and increasing the production rate of the component with negligible capital investment.

scholarly journals Relation between Cutting Surface Quality and Alloying Element Contents when Using a CO2 Laser

10.14311/1382 ◽  
2011 ◽  
Vol 51 (3) ◽  
Author(s):  
J. Litecká ◽  
J. Fabianová ◽  
S. Pavlenko
Keyword(s):  
Surface Quality ◽  
Laser Cutting ◽  
Vickers Microhardness ◽  
Cutting Parameters ◽  
Quality Parameters ◽  
Material Structure ◽  
Alloying Element ◽  
Practical Applications ◽  
Cutting Machine ◽  
Cutting Surface

This paper deals with the influence of material content on changes in the quality parameters of the cutting surface when cutting with a laser. The study focuses on experiments to find the effect of material structure and cutting parameters on surface roughness, Vickers microhardness and precision of laser cutting. The experimental results are shown in graphs which illustrate the suitability of materials for achieving required cutting surface quality parameters. These results can be used for optimizing production in practical applications using a laser cutting machine.

scholarly journals Influence of Process Parameters on Cutting Width in CO2 Laser Processing of Hardox 400 Steel

2021 ◽  
Vol 11 (13) ◽  
pp. 5998
Author(s):  
Constantin Cristinel Girdu ◽  
Catalin Gheorghe ◽  
Constanta Radulescu ◽  
Daniela Cirtina
Keyword(s):  
Experimental Research ◽  
Co2 Laser ◽  
Process Parameters ◽  
Laser Processing ◽  
Laser Power ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Gas Pressure ◽  
Influence Of Process Parameters ◽  
Minimum Value

This paper presents an experimental research that proposes to determine the influence of process parameters on CO2 laser cutting of 8 mm thick Hardox 400 steel, for which Kerf has a minimum value. The experimental research was conducted according to a complete factorial plan with laser power, assistant gas pressure and cutting speed as the input parameters, and cutting width as the dependable variable. The Design of Experiment (DOE) consisted of 27 references and was completed with four replicas to determine the variation of the Kerf average. Functional, linear and quadratic relations were determined, which describe the Kerf dependence on the cutting parameters in order to establish the most influential parameter. The results show that the independent parameter with the most significant influence was the laser power, with minimum Kerf obtained if the laser power and the assistant gas pressure were adjusted to average values. The interaction between laser power and auxiliary gas pressure at constant cutting speed was investigated to improve Kerf and reduce the laser processing cost. The study offers the right combination of process parameters that leads to a minimum value of the cutting width.

scholarly journals Influence of End Mill Helix Angle on Surface Quality of Aluminium Thin-Walled Parts

2018 ◽  
Vol 26 (42) ◽  
pp. 177-188
Author(s):  
Ivan Buranský ◽  
Matej Bračík ◽  
Vladimír Šimna
Keyword(s):  
Surface Quality ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Helix Angle ◽  
End Mill ◽  
Cnc Machine ◽  
End Mills ◽  
Thin Walled ◽  
Cutting Speeds

Abstract This paper deals with the influence of the end mill helix angle on the flatness and surface quality of aluminium (EN AW 6082) thin-walled parts. The three teeth solid end mills of 12 mm diameter with same and different helix angle of third tooth were designed. The tests were performed using the HSC 105 linear CNC machine and following cutting parameters: cutting speeds (800, 100 and 1200 m.min−1), feed per tooth (0.12 mm), cutting depth (for roughing 10 mm and for finishing 5 mm). Evaluation of surface quality of the processed thin-walled parts shows that the helix angle of the end mills has a significant influence on the surface quality of the thin-walled parts. The best results were obtained in the case of end mill with different 35° helix angle of third tooth and cutting speed 1000 m.min−1.

scholarly journals Optimization with Taguchi Method of Influences on Surface Roughness of Cutting Parameters in CNC Turning Processing

Mechanika ◽  
2019 ◽  
Vol 25 (5) ◽  
pp. 397-405
Author(s):  
Mustafa özdemir
Keyword(s):  
Surface Roughness ◽  
Taguchi Method ◽  
Feed Rate ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Depth Of Cut ◽  
Cnc Machine ◽  
Control Factors ◽  
Steel Material ◽  
Validation Tests

In this study, the effect of cutting speed, feed rate, and depth of cut on surface roughness was experimentally examined in the processing of AISI 409 (ferritic chromium stainless steel) material. As cutting parameters, three cutting speeds (200, 300, and 400 m/min), three feed rates (0.1, 0.2, and 0.3 mm/rev), and three depths of cut (1, 2 and 3 mm) were selected. Turning tests in CNC machine were made according to Taguchi L27 orthogonal array and the signal/noise (S/N) ratios were used in the evaluation of the experimental results. By using Taguchi method, cutting parameters giving the optimum surface roughness (Ra and Rz) values were determined. The effect of control factors on the results was found with the help of Analysis of Variance (ANOVA). According to ANOVA results, the most important parameters affecting the surface roughness were determined as feed rate, depth of cut, and cutting speed, respectively. By conducting validation tests, the optimization was observed to be applied successfully.

Modeling of CNC Machine Tool Energy Consumption and Optimization Study Based on Neural Network and Genetic Algorithm

2012 ◽  
Vol 195-196 ◽  
pp. 770-776 ◽  
Author(s):  
Dong Xie ◽  
Guo Rong Chen ◽  
Feng Wang ◽  
Jian Qu Zhu
Keyword(s):  
Neural Network ◽  
Genetic Algorithm ◽  
Energy Consumption ◽  
Machine Tool ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Feed Speed ◽  
Cnc Machine Tool ◽  
Cnc Machine ◽  
Optimization Study

The issue of CNC machine tool energy consumption and environmental protection plays an important role on manufacturing technology research since CNC machine tool energy is consumed during motor racing or cutting process. The paper analyzes CNC machine tool energy consumption influence by cutting parameters of cutting speed, feed speed, cutting depth. Based on nonlinear mapping ability of neural network, the model of CNC machine tool energy consumption related to cutting parameters is established by using experimental data, and then the optimal combination of cutting parameters are searched by using global optimization of genetic algorithm, and verified in CNC machine tool cutting experiment. The proposed method provides a good energy control proposal for CNC machine tool roughing process. The experimental results show that the energy consumption is optimal.

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