An investigation for improvement of the 3D-digitization process: a reverse engineering approach

被引:7
作者
Chowdary, Boppana V. [1 ]
De Noon, Ayanna-Rene [1 ]
Ali, Fahraz [1 ]
Imbert, Clement A. C. [1 ]
机构
[1] Univ West Indies, Fac Engn, Dept Mech & Mfg Engn, St Augustine, Trinidad Tobago
关键词
Product design systems; Data handling; Modelling; Inspection;
D O I
10.1108/17410381111099842
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Purpose - The purpose of this paper is to provide a comprehensive work flow for the improvement of the Reverse Engineering (RE) process in producing non-uniform rational B-splines (NURBS) models from scanned point cloud data. This should become a reliable guide in the creation of desired 3D-CAD models in order to improve efficiency of downstream operations and further to make decisions regarding quality control. Design/methodology/approach - The paper deals with a detailed investigation of operations in achieving an object's accuracy in the data editing phase and data fitting phase that employs the use of a 3D scanner. A case example involving the ShapeGrabber (R) AI310 laser scanner was used in digitizing the physical object. Operations considered for investigation at the data editing phase include relaxation, decimation of triangles and sharpening of edges. Contour detection, construct patches, target patch count, grid construction and grid resolution are selected as the operations for investigation in the data fitting phase. Evaluation of the generated digitized models was carried out by performing tests which include 3D Comparisons and Geometric Dimensioning and Tolerance (GD & T) testing. Findings - The process of data editing is considered to be extremely time consuming which requires a high degree of skill in order to carry out the data manipulation steps. For the purpose of investigation, an electrical socket cover was considered as the object for digitization. The study found some contributors to enhance the quality of the digital model that can be used in the first piece inspection. The results indicate that although the operations associated with the data fitting phase affect the overall quality of the digitized model; they are however, limited by whatever the quality achieved at the data editing phase. Practical implications - The RE work flow described in this research will assist designers and practitioners in improving both the efficiency and effectiveness of design and manufacturing functions. Originality/value - The data editing and fitting processes are time consuming due to various adjustments necessary in obtaining a NURBS model from the digitized data. Thus, the proposed RE work flow identified the steps to realize the desired CAD models from the point cloud data. Moreover, from this study, practitioners will get a concise overall understanding about which geometrical features need to be adjusted so that the required model can be achieved; instead of the need to develop this procedure by themselves through the process of trial and error.
引用
收藏
页码:131 / 147
页数:17
相关论文
共 20 条
  • [11] A paradigm shift for inspection: complementing traditional CMM with DSSP innovation
    Griffa, Alberto E.
    [J]. SENSOR REVIEW, 2008, 28 (04) : 334 - 341
  • [12] Gustafson D, 2008, MANUF ENG, V141, P28
  • [13] Kuang-Hua Chang, 2006, Computer-Aided Design and Applications, V3, P21
  • [14] Kurfess TR, 2006, MANUF ENG, V136, P173
  • [15] Reverse engineering employing a 3D laser scanner: A case study
    Milroy, MJ
    Weir, DJ
    Bradley, C
    Vickers, GW
    [J]. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 1996, 12 (02) : 111 - 121
  • [16] Repairing triangle meshes built from scanned point cloud
    Pernot, J-P.
    Moraru, G.
    Veron, P.
    [J]. JOURNAL OF ENGINEERING DESIGN, 2007, 18 (05) : 459 - 473
  • [17] Circular hole recognition for STL-based toolpath generation
    Qu, XZ
    Stucker, B
    [J]. RAPID PROTOTYPING JOURNAL, 2005, 11 (03) : 132 - 139
  • [18] Siddique Z., 2006, P ASME 2006 INT DES, P755
  • [19] RE (reverse engineering) as necessary phase by rapid product development
    Sokovic, M.
    Kopac, J.
    [J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2006, 175 (1-3) : 398 - 403
  • [20] Reverse engineering of free-form surfaces
    Werner, A
    Skalski, K
    Piszczatowski, S
    Swieszkowski, W
    Lechniak, Z
    [J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 1998, 76 (1-3) : 128 - 132