scholarly journals Parameterized data handling for forming tool tryout: reverse engineering, data consolidation and springback compensation

2021 ◽  
Vol 1157 (1) ◽  
pp. 012035
Author(s):  
L Maier ◽  
C Hartmann ◽  
W Volk
2021 ◽  
Author(s):  
Ashish Deb

Surface reconstruction of 3D reverse engineering data through the application of a triangulated mesh is a popular method. This thesis proposes a new simple genetic algorithm, an artificial intelligence method, to optimize triangular mesh generation which reduces the number of data points required to depict an object without sacrificing the details and accuracy.


2019 ◽  
Vol 15 (1) ◽  
pp. 56-62
Author(s):  
Ahmed A. A. Duroobi ◽  
Nareen Hafidh Obaeed ◽  
Safaa Kadhim Ghazi

In the reverse engineering approach, a massive amount of point data is gathered together during data acquisition and this leads to larger file sizes and longer information data handling time. In addition, fitting of surfaces of these data point is time-consuming and demands particular skills. In the present work a method for getting the control points of any profile has been presented. Where, many process for an image modification was explained using Solid Work program, and a parametric equation of the profile that proposed has been derived using Bezier technique with the control points that adopted. Finally, the proposed profile was machined using 3-aixs CNC milling machine and a compression in dimensions process has been occurred between the proposed and original part so as to demonstrate the verification of the proposed method.


2014 ◽  
Vol 1044-1045 ◽  
pp. 933-936
Author(s):  
Xuan Lin Ye

Based on the actual processing problem of rubbing the drum parts without drawing, the author conducts the research to the rubbing the drum real reverse engineering, then in view of the existing reverse engineering data acquistion problems, is analyzed by TRIZ theory, according to the technology contradiction solve method and combined with the actual situation of the problem, the feasible solutions obtained, to provide reference for the engineering and technical personnel.


2013 ◽  
Vol 331 ◽  
pp. 631-635
Author(s):  
Ci Zhang ◽  
Guo Fan Hu ◽  
Xu Bing Chen

In reverse engineering, data pre-processing has played an increasingly important role for rebuilding the original 3D model. However, it is usually complex, time-consuming, and difficult to realize, as there are huge amounts of redundant 3D data existed in the gained point cloud. To find a solution for this issue, point cloud data processing and streamlining technologies are reviewed firstly. Secondly, a novel pre-processing approach is proposed in three steps: point cloud registration, regional 3D triangular mesh construction and point cloud filtering. And then, the projected hexagonal area and the closest projected point are defined. At last, a parabolic antenna model is employed as a case study. After pre-processing, the number of points are decreased from 4,066,282 to 449,806 under the constraint of triangular grid size h equaling to 2mm, i.e. about 1/9 size of the original point cloud. The result demonstrates its feasibility and efficiency.


2021 ◽  
Author(s):  
Canberk Karahan ◽  
Sebnem Helvacioglu ◽  
Ismail Hakki Helvacioglu

In the current work, a new error evaluation methodology is introduced based on error analysis in ship production with reverse engineering data. The aim is to determine the errors and prevent or reduce the occurrence in other projects. First step is to compose a database of the errors; then, group the similar errors and calculate the Error Priority Number (EPN) by the evaluation of the predetermined criteria. The radar diagrams, which are suitable for representing a number of parameters having the same variables, were used to present the error groups in a simple way. The error groups were created on the diagram with the scores taken from the specific criteria. With the aid of the radar diagram, valuable information is given by presenting similarities and dissimilarities of these errors with other error groups. After examining the radar diagrams and evaluating the results, the cause and effect diagrams were prepared for these error groups from the field experts. Thus, the methodology should be customized for the shipyard to ensure maximum efficiency.


2021 ◽  
Author(s):  
Ashish Deb

Surface reconstruction of 3D reverse engineering data through the application of a triangulated mesh is a popular method. This thesis proposes a new simple genetic algorithm, an artificial intelligence method, to optimize triangular mesh generation which reduces the number of data points required to depict an object without sacrificing the details and accuracy.


2016 ◽  
Vol 90 ◽  
pp. 01062
Author(s):  
Sundi Syahrul Azwan ◽  
Jumali Muhammad Syafik ◽  
Raffay Mohamad Razly ◽  
R.Abdullah R. Izamshah

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