Geometrical characteristics of machined shape for computer aided operation planning

1998 ◽  
Vol 76 (1-3) ◽  
pp. 109-114 ◽  
Author(s):  
Fumiki Tanaka ◽  
Takeshi Kishinami
Keyword(s):  
Operation Planning ◽  
Geometrical Characteristics ◽  
Computer Aided

Machining Feature-Based CAD/CAPP for STEP-NC

2014 ◽  
Vol 598 ◽  
pp. 591-594 ◽  
Author(s):  
Li Yan Zhang
Keyword(s):  
Process Planning ◽  
Manufacturing Process ◽  
Data Transfer ◽  
Operation Planning ◽  
Computer Aided Process Planning ◽  
Machining Feature ◽  
Computer Aided ◽  
Cad Cam ◽  
Feature Based ◽  
Cam Systems

ISO 14649, known as STEP-NC, is new model of data transfer between CAD/CAM systems and CNC machines. In this paper, the modeling based on machining feature is proposed. The machining feature comes from the manufacturing process considering the restriction of machining technology and machining resource. Then the framework for computer aided process planning is presented, where the algorithms of operation planning is studied. The practical example has been provided and results indicate that machining feature based model can integrate with CAPP and STEP-NC seamlessly.

Tool Selection and Path Control for Automated Posterior Teeth Coronal Canal Treatment Preparation

2004 ◽  
Author(s):  
J. Dong ◽  
S. Y. Hong ◽  
G. Hasselgren
Keyword(s):  
Process Planning ◽  
Root Canal ◽  
Endodontic Treatment ◽  
Planning System ◽  
Tool Selection ◽  
Treatment Procedure ◽  
Posterior Teeth ◽  
Geometrical Characteristics ◽  
Path Control ◽  
Computer Aided

This paper represents a part of research plan of “Advanced Endodontic Technology Development.” In order to aid endodontic treatment a 3-D computer model of root canals has been created which shows the geometrical characteristics. The extent of work needed for root canal treatment is obtained from this 3-D model. The objective of this paper is to convert the geometrical characteristics into automatic treatment procedure planning. This computer-aided process planning for endodontic treatment determines tool selection and process method. It also calculates tool path and optimum tool movement distance. The output of this planning system is a numerical controlled program. Because of paper size limitation, only tool selection and path control during coronal canal treatment preparation for posterior teeth are discussed in the paper. The computer-aided treatment procedure planning system provides transformation from a 3-D canal model to a machine-controlled program that will yield a treated root canal ready for filling. It serves as a bridge between design (3-D canal model) and manufacturing (canal treatment). Unlike conventional methods for root canal treatment, the computer-aided treatment process planning system emphasizes a non-destructive internal tooth geometry examination and less invasive access preparation.

Tool Selection and Path Control for Automated Anterior Teeth Coronal Canal Treatment Preparation

2005 ◽  
Author(s):  
J. Dong ◽  
S. Y. Hong ◽  
G. Hasselgren
Keyword(s):  
Process Planning ◽  
Root Canal ◽  
Endodontic Treatment ◽  
Planning System ◽  
Tool Selection ◽  
Treatment Procedure ◽  
Geometrical Characteristics ◽  
Anterior Teeth ◽  
Path Control ◽  
Computer Aided

This paper represents a part of research plan of “Advanced Endodontic Technology Development”. In order to aid endodontic treatment a 3-D computer model of root canals has been created which shows the geometrical characteristics. The extent of work needed for root canal treatment is obtained from this 3-D model. The objective of this paper is to convert the geometrical characteristics into automatic treatment procedure planning. This computer-aided process planning for endodontic treatment determines tool selection and process method. It also calculates tool path and optimum tool movement distance. The output of this planning system is a numerical controlled program. Because of paper size limitation, only tool selection and path control during coronal canal treatment preparation for anterior teeth are discussed in the paper. The computer-aided treatment procedure planning system provides transformation from a 3-D canal model to a machine-controlled program that will yield a treated root canal ready for filling. It serves as a bridge between design (3-D canal model) and manufacturing (canal treatment). Unlike conventional methods for root canal treatment, the computer-aided treatment process planning system emphasizes a non-destructive internal tooth geometry examination and less invasive access preparation.

Single-Vertex Multicrease Rigid Origami With Nonzero Thickness and Its Transformation Into Deployable Mechanisms

2017 ◽  
Vol 10 (1) ◽  
Author(s):  
Chenhan Guang ◽  
Yang Yang
Keyword(s):  
Computer Aided Design ◽  
Screw Theory ◽  
Kinematic Model ◽  
Degree Of Freedom ◽  
Single Vertex ◽  
Geometrical Characteristics ◽  
Computer Aided ◽  
Deployable Mechanism ◽  
Aided Design ◽  
Basic Configuration

The radial folding ratio of single-vertex multicrease rigid origami, from the folded configuration to the unfolded configuration, is satisfactory. In this study, we apply two approaches to add nonzero thickness for this kind of origami and identify different geometrical characteristics. Then, the model of the secondary folding origami, which can help to further decrease the folding ratio, is constructed. We apply the method of constraining the edges of the panels on prescribed planes to geometrically obtain the kinematic model. Based on the kinematic model and the screw theory, the nonzero thickness origami is transformed into the deployable mechanism with one degree-of-freedom (1DOF). Other similar mechanisms can be derived based on this basic configuration. The computer-aided design examples are presented to indicate the feasibility.

A New Method for Computer-Aided Operation Planning for Extensive Mandibular Reconstruction

2006 ◽  
Vol 117 (7) ◽  
pp. 2431-2437 ◽  
Author(s):  
Wock Hallermann ◽  
Sigbj??rn Olsen ◽  
Thibaut Bardyn ◽  
Farhan Taghizadeh ◽  
Andrej Banic ◽  
...  
Keyword(s):  
Mandibular Reconstruction ◽  
New Method ◽  
Operation Planning ◽  
Computer Aided
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