scholarly journals Researches regarding the reducing of burr size by optimising the cutting parameters on a CNC milling machine

2017 ◽  
Vol 112 ◽  
pp. 01006
Author(s):  
Cristina Biriş ◽  
Gabriel Racz

2019 ◽  
Vol 9 (5) ◽  
pp. 957 ◽  
Author(s):  
Ngoc-Pi Vu ◽  
Quoc-Tuan Nguyen ◽  
Thi-Hong Tran ◽  
Hong-Ky Le ◽  
Anh-Tuan Nguyen ◽  
...  

Cutting regime parameters play an important role in determining the efficiency of the grinding process and the quality of the ground parts. In this study, the influences of the cutting parameters, including the cutting depth (ae), the feed rate (Fe) and the wheel speed (RPM) on the grinding time when grinding tablet shape punches by a cubic boron nitride (CBN) wheel on a CNC (Computerized Numerical Control) milling machine are investigated. The Taguchi technique based on orthogonal array and analysis of variance (ANOVA) was then applied to design the number of experiments and evaluate the influence of cutting depth, feed rate and wheel speed on the grinding time. The results show that among the three cutting parameters, the most influential parameter on the grinding time is the cutting depth. The second influential parameter on the grinding time is the feed rate. The least influential parameter on grinding time is the wheel speed. In addition, the optimal condition of cutting parameters obtained for grinding tablet shape punches by cubic boron nitride wheels on a CNC milling machine are a cutting depth of 0.03 mm, wheel speed of 5000 rpm and feed rate of 3500 mm/min. This optimum cutting parameters ensure the least grinding time.



2018 ◽  
Vol 67 ◽  
pp. 02054
Author(s):  
Gandjar Kiswanto ◽  
Poly Poly ◽  
Yolanda Rudy Johan

CNC milling machine is a production machine which widely used to manufacture many kinds of products. In the process of milling machining, the time needed to produce a component must be as minimum as possible to minimize the costs and its impacts on the environment. One of energy consumptions used in CNC milling machines is to supply electric motors for each axis of motions. Cutting energy consumption can be minimized by optimizing the cutting parameters, such as the cutting toolpath. Modelling and comparing the total energy consumption of the cutting process from different cutting toolpaths and strategies are important in selecting the right toolpath that has the smallest energy consumption. To achieve this goal, this study models the energy consumption during the cutting process. The model is then used to evaluate and compare different cutting toolpaths from different cutting strategies. Three prismatic and one sculptured part were used to examine the model of cutting energy consumption. A Graphical User Interface is also developed to simplify the comparison and evaluation process. Through this process it will be possible to predict energy consumption in the cutting toolpath and hence enable the selection of the right toolpath to reduce energy consumption in machining.



Author(s):  
K. Sabarieasan ◽  
S. Ajay ◽  
S. Gopinath ◽  
A. Kirubakaran ◽  
M. K. Sakthi Mugesh

The project aims at effect of cutting forces on the drill & end mill cutter tools in modern manufacturing. For High-speed machining operation, accuracy of tool tip places a vital role in mass manufacturing. In order to get high precision, high-efficiency automated production the tool life should be longer enough to withstand various stresses acting on it. The main aim is to develop the combination of optimum cutting parameters by using taguchi method. In this project design of experiment has been employed with L9 (3^3) Orthogonal Array for three parameters namely Speed, Feed and Depth of cut. For each of these parameters three different levels have been identified and used to perform the cutting parameters for minimizing the stresses acting on various tool in SINEWAVE© VMM-A-200 CNC Milling Machine. The material selected for machining was Aluminium plate with drill & end drill cutter tools. Cutting forces are experimentally determined at a tip of cutting tools during machining by milling tool dynamometer. From the obtained cutting forces are applied on tip of cutting tools and results are evaluated using ANSYS software such as various stresses, strain and total deformation are found. Cutting Tools are modelled in CREO software and the model is then imported in ANSYS software for analysis. Also, from stress analysis of milling tool it is evident thrust force play a vital role in machining, whenever the stress is minimum then the tool life become maximum.





2011 ◽  
Vol 87 ◽  
pp. 82-89
Author(s):  
Potejanasak Potejana ◽  
Chakthong Thongchattu

This research proposes a new application of 3-axis CNC milling machine for polishing the 60 HRC hardness steels. The rotary polishing tools are designed by refer to the end-mill ball nose’s design. The diamond powder are coated in rotary polishing tools by resinoid bonding method and concentrated in 4.4 karat/cm2. The Zig-milling tool paths are used to polish the hardness steel. After polishing, the confocal laser scanning microscope is used to analyze the arithmetic mean surface roughness of the hardness steels. The L12 orthogonal array of the Taguchi’s method is selected to conduct the matrix experiment to determine the optimal polishing process parameters. The diamond grit size and cutting speed of the rotary polishing tools, feed rate and step over of the tool path, the depth of polishing process penetration, and polishing time are used to study. The combination of the optimal level for each factor of the hardness steel polishing process are used to study again in the confirmation experiment. The predicted signal to noise ratio of smaller - the better under optimal condition are calculated by using the data from the experiment. The combination of the optimal level for each factor are used to study again in the confirmation experiment and the result show that polishing time was a dominant parameter for the surface roughness and the next was depth of penetration. The response surface design is then used to build the relationship between the input parameters and output responses. The experimental results show that the integrated approach does indeed find the optimal parameters that result in very good output responses in the rotary polishing tools polished hardness mould steel using CNC milling machine. The mean surface roughness of hardness steel polishing process is improved by the diamond rotary tools with the 3-axis CNC milling machine.



2021 ◽  
Vol 1885 (3) ◽  
pp. 032069
Author(s):  
Xiaoyu Li ◽  
Minbo Wang ◽  
Liangbao Jiang ◽  
Jiaxi Liu ◽  
Jiaming Li ◽  
...  


2021 ◽  
Vol 1068 (1) ◽  
pp. 012017
Author(s):  
Wasis Nugroho ◽  
Damhuji Rifai ◽  
Aminul Hakim Embong ◽  
Kamarul Adnan Abd Aziz ◽  
Ahmad Siraji Embong ◽  
...  


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