Recognition of rough machining features in 2D components

In this paper, two methods are used to recognize the roughing features in an intermediate workpiece, which is obtained by gluing the finishing features onto the original component. The first method is based on the physical states of equilibrium and hence is referred to as the equilibrium method. This method recognizes features originating from convex inner loops. The second method, referred to as the concavity method, uses the concavity of vertices, edges and faces to detect features and the interactions between them. The features are represented as volumes and are classified according to a feature taxonomy. In this taxonomy, a new class of features, i.e. free features, is included. Examples of such features are blend, edge and vertex volumes. Edge and vertex volumes are combined with face volumes to form face machining features. The methodology is illustrated by recognizing the features in two industrial components.

[1]  Tien-Chien Chang,et al.  Feature extraction and feature based design approaches in the development of design interface for process planning , 1990, J. Intell. Manuf..

[2]  Tetsuo Tomiyama,et al.  Integration of functional and feature-based product modelling the IMS/GNOSIS experience , 1996, Comput. Aided Des..

[3]  O. W. Salomons,et al.  Review of research in feature-based design , 1993 .

[4]  N. N. Z. Gindy,et al.  A hierarchical structure for form features , 1989 .

[5]  Byoung Kyu Choi,et al.  Automatic recognition of machined surfaces from a 3D solid model , 1984 .

[6]  Rangasami L. Kashyap,et al.  Geometric Reasoning for Recognition of Three-Dimensional Object Features , 1990, IEEE Trans. Pattern Anal. Mach. Intell..

[7]  Michael J. Wozny,et al.  A method for generating volumetric features from surface features , 1991, SMA '91.

[8]  Richard A. Wysk,et al.  AIMSI: a prelude to a new generation of integrated CAD/CAM systems , 1988 .

[9]  Yong Se Kim,et al.  Recognition of form features using convex decomposition , 1992, Comput. Aided Des..

[10]  Ajay Joneja,et al.  Protrusion-features handling in design and manufacturing planning , 1993, Comput. Aided Des..

[11]  Ken G. McIntosh.  Engineering Data Management: A Guide to Successful Implementation , 1995 .

[12]  Martti Mäntylä,et al.  Feature modelling by incremental feature recognition , 1993, Comput. Aided Des..

[13]  Rong-K Wei Li.  A part-feature recognition system for rotational parts , 1988 .

[14]  Tien-Chien Chang,et al.  Expert process planning system with solid model interface , 1988 .

[15]  Srichand Hinduja,et al.  Modelling turned components with non-axisymmetric features , 1997, Comput. Aided Des..

[16]  Jami J. Shah,et al.  Feature recognition by volume decomposition using half-space partitioning , 1994 .

[17]  Mark Richard Henderson.  EXTRACTION OF FEATURE INFORMATION FROM THREE-DIMENSIONAL CAD DATA , 1984 .

[18]  Rangasami L. Kashyap,et al.  IDP: automating the CAD/CAM link by reasoning about shape , 1990, Sixth Conference on Artificial Intelligence for Applications.

[19]  Martti Mäntylä,et al.  A feature definition language for bridging solids and features , 1993, Solid Modeling and Applications.

[20]  T. C. Chang,et al.  Graph-based heuristics for recognition of machined features from a 3D solid model , 1988 .

[21]  Hyowon Suh,et al.  Feature generation in concurrent engineering environment , 1991, SMA '91.

[22]  Mark Henderson,et al.  USING SYNTACTIC PATTERN RECOGNITION TO EXTRACT FEATURE INFORMATION FROM A SOLID GEOMETRIC DATA BASE. , 1983 .

[23]  Srichand Hinduja,et al.  Convex hull-based feature-recognition method for 2.5D components , 1990, Comput. Aided Des..

[24]  Dana S. Nau,et al.  Building a general approach to feature recognition of Material Removal Shape Element Volumes (MRSEVs) , 1993, Solid Modeling and Applications.

[25]  Xun Xu,et al.  Determination of finishing features in 2½ D components , 1997 .

[26]  Mark Henderson,et al.  FRAPP: Automated feature recognition and process planning from solid model data , 1988 .

[27]  Tony C. Woo,et al.  Interfacing Solid Modeling to CAD and CAM: Data Structures and Algorithms for Decomposing a Solid , 1984, Computer.

[28]  José C. G. Teixeira,et al.  Form feature modelling in a hybrid CSG/BRep scheme , 1991, Comput. Graph..

[29]  Rajit Gadh,et al.  Automatic Determination of Feature Interactions in Design-for-Manufacturing Analysis , 1995 .

[30]  Sanjay B. Joshi,et al.  Recognizing multiple interpretations in 2½D machining of pockets , 1994 .

[31]  Mark Henderson,et al.  Computer recognition and extraction of form features: A CAD/CAM link , 1984 .

[32]  B. K. Choi.  STOPP: an approach to CADCAM integration☆ , 1985 .

[33]  Sanjay B. Joshi,et al.  Recognizing multiple interpretations of interacting machining features , 1994, Comput. Aided Des..

[34]  David C. Gossard,et al.  Recognizing shape features in solid models , 1990, IEEE Computer Graphics and Applications.

[35]  P. K. Venuvinod,et al.  Efficient Automated Geometric Feature Recognition through Feature Coding , 1994 .

[36]  James Gao,et al.  The Implementation of a Feature-Based Component Representation for CAD/CAM Integration , 1994 .

[37]  Hamid R. Parsaei,et al.  Design and implementation of a feature-based automated process planning (FBAPP) system , 1994 .