A Cyber-Physical System Improves the Quality of Machining in CNC Milling Machine—A Case Study

Author(s):  
Ganesh Kumar Nithyanandam ◽  
Saravana Kumar Sellappan ◽  
Selvaraj Ponnumuthu
2020 ◽  
Vol 64 (4) ◽  
pp. 336-341
Author(s):  
Márk Kiss ◽  
Mátyás Andó

Such manufacturing cells, that need to be able to produce high quantity and variety workpieces, the automatic workpiece handling is indispensable to stay in competition. A real manufacturing cell’s simulation in a cyber-physical system can help the decisions-making in the production, as we receive real data with the simulation of the scenarios. Our manufacturing cell consists of a 6-axis robot, 2 CNC milling machines and 4 conveyors. We tested 10 different scenarios, during which we analyzed the usage of the robot and the milling machines. By upgrading the tools, used for milling, we could reduce the cycle time of the workpieces. Furthermore, one more milling machine could be integrated into the cell due to the low usage of the robot or the speed of the robot could be lowered. Besides, filling the pallets with the same workpieces was the most effective way, however, with mixed workpieces we reached better results when we used optimization for cycle time. In these cases, reducing the order quantity to a daily amount did not cause any capacity reduction.


Meccanica ◽  
2015 ◽  
Vol 50 (12) ◽  
pp. 2899-2906 ◽  
Author(s):  
Priscila Roel De Deus ◽  
Manoel Cleber de Sampaio Alves ◽  
Fabio Henrique Antunes Vieira

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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