scholarly journals Design and finite element analysis of micro punch CNC machine modeling for medical devices

2018 ◽  
Author(s):  
Sigiet Haryo Pranoto ◽  
Muslim Mahardika
2013 ◽  
Vol 579-580 ◽  
pp. 603-606
Author(s):  
Xin Bo Jiang ◽  
Quan Hui Wu ◽  
Feng Ming Jing ◽  
Chun Mei Yang ◽  
Ge Luo

Door hardware doors finished slot machining process is a very important step in the process, as doors hardware slots are in scattered locations, different specifications, difficult processing. This paper, the rotary table overcome dispersion slot door hardware, according to the characteristics of wooden slots hardware, selected the minimum number of spindles to satisfy all wood processing hardware slot, making maximize spindle utilization. The use of finite element design rotary table and key components of the cutting system, verify the reasonableness of its structure.


Author(s):  
Václav Sebera ◽  
Milan Šimek

The objective of the paper is the parametrization and the finite element analysis of mechanical pro­per­ties of a through dovetail joint made with the use of a specific procedure by a 3-axis CNC machine. This corner joint was used for the simulation of the bending load of the joint in the angle plane – by compression, i.e. by pressing the joint together. The deformation fields, the stress distribution, the stiffness and the bending moment of the joints were evaluated. The finite element system ANSYS was used to create two parametric numerical models of the joint. The first one represents an ideal­ly stiff joint – both joint parts have been glued together. The second model includes the contact between the joined parts. This numerical model was used to monitor the response of the joint stiffness to the change of the static friction coefficient. The results of both models were compared both with each other and with similar analyses conducted within the research into ready-to-assemble furniture joints. The results can be employed in the designing of more complex furniture products with higher demands concerning stiffness characteristics, such as furniture for sitting. However, this assumption depends on the correction of the created parametric models by experimental testing.


2020 ◽  
Vol 10 (7) ◽  
pp. 915-921
Author(s):  
Yasar Sen

Objectives: In this study, dental implants with three different tooth pitch are designed and tested under static loads and fatigue analysis. In order to reveal the strengths of the different implant designs in dental implant application, the experimental setup where real physical environments were created experimental data was obtained, and these data were compared with numerical data. Materials and Methods: It is difficult to find an analytical solution for problems involving complex geometries. For this reason, numerical methods such as finite element analysis (FEA) are used. For compared finite element results and experimental analysis a new experimental setup has been created to simulate the physical conditions inside the mouth. In this arrangement, the temperature is close to ideal with the acidic environment inside the mouth. Firstly, the geometrical implant system determined on the CNC machine was produced. Results and Conclusion: In this study, dental implant research with 3 different screw pitch was performed. The results obtained from the experimental results were compared with the results obtained from the numerical analysis and it was observed that the accuracy of the numerical analysis was approximately 95%. It was observed that the tensions were less in the dental implant with higher number of screw pitch. In terms of the difficulty of experimental studies, finite element analysis saved both time and money. Thanks to this method, different scenarios can be applied to the optimum design of the dental implant and it can be designed in a computer environment before applying to the patient.


2012 ◽  
Vol 433-440 ◽  
pp. 7159-7164 ◽  
Author(s):  
Yong Lu ◽  
Gang Wei Cui ◽  
Dong Gao ◽  
Heng Chao Xiang

The thermal deformation of ram system in a heavy-duty CNC milling-boring machine tool has a serious effect on its accurateness. This paper analyses quantificationally the temperature field and deformation field of the ram system, and gives the ram’s heat sources, calculating quantity of heat and transferring type of heat. And then a finite element analysis is performed, the analyzing results provide basic theoretical data for thermal error compensation in machine tools.


2014 ◽  
Vol 1079-1080 ◽  
pp. 1034-1037
Author(s):  
Eugen Avrigean

The work presents the aproach of the finite element investigation of the cardan transmission joint. We treat the problem of structural behaviour, such as analyses that target the strength-related behaviour. It is thus sought to determine certain parameters (nodal displacements, stresses, strains) in the conditions of applying various types of loads - forces, pressures or moments. For this, we used a software for finite element analysis – Cosmos - a product integrated in the Solidworks package. We insisted on calculation of the cardan transmission for Dacia 1307 but they can be easily transposed also to other typodimensions of cars, machines or medical devices from the same category.


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