Introducing CAD/CAM and CNC machining by using a feature based methodology in a manufacturing lab course, a conceptual frame work

2014 ◽  
Author(s):  
Hassan Iqbal ◽  
Anwar K. Sheikh ◽  
M. Abdul Samad
Keyword(s):  
Cnc Machining ◽  
Conceptual Frame ◽  
Cad Cam ◽  
Feature Based ◽  
Frame Work

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.

The CAD/CAM Interface: A 25-Year Retrospective

2005 ◽  
Vol 5 (3) ◽  
pp. 188-197 ◽  
Author(s):  
J. Corney ◽  
C. Hayes ◽  
V. Sundararajan ◽  
P. Wright
Keyword(s):  
Computer Aided Design ◽  
Future Research ◽  
Manufacturing Processes ◽  
Sheet Metal Parts ◽  
Multiaxis Machining ◽  
Computer Aided ◽  
Cad Cam ◽  
Feature Based ◽  
Manufacturing Applications ◽  
Aided Design

The vision of fully automated manufacturing processes was conceived when computers were first used to control industrial equipment. But realizing this goal has not been easy; the difficulties of generating manufacturing information directly from computer aided design (CAD) data continued to challenge researchers for over 25 years. Although the extraction of coordinate geometry has always been straightforward, identifying the semantic structures (i.e., features) needed for reasoning about a component’s function and manufacturability has proved much more difficult. Consequently the programming of computer controlled manufacturing processes such as milling, cutting, turning and even the various lamination systems (e.g., SLA, SLS) has remained largely computer aided rather than entirely automated. This paper summarizes generic difficulties inherent in the development of feature based CAD/CAM (computer aided manufacturing) interfaces and presents two alternative perspectives on developments in manufacturing integration research that have occurred over the last 25 years. The first perspective presents developments in terms of technology drivers including progress in computational algorithms, enhanced design environments and faster computers. The second perspective describes challenges that arise in specific manufacturing applications including multiaxis machining, laminates, and sheet metal parts. The paper concludes by identifying possible directions for future research in this area.

Research on Machining Simulation of Ultra High-Speed Grinding Machine Tool Based on Web

2010 ◽  
Vol 126-128 ◽  
pp. 77-81
Author(s):  
Wan Shan Wang ◽  
Peng Guan ◽  
Tian Biao Yu
Keyword(s):  
Machine Tool ◽  
Geometric Modeling ◽  
High Speed ◽  
Cnc Machining ◽  
Machining Process ◽  
Machining Simulation ◽  
Ultra High Speed ◽  
Cad Cam ◽  
High Speed Grinding ◽  
Grinding Machine

The future development of the manufacturing is using VR technology to make the machining simulation before the actual machining process made. The machining simulation of Ultra High-speed Grinding Machine Tool is researched in this paper. Firstly, using UG/NX software and VRML, the geometric modeling of machine tool is modeled. Secondly, through using Java and Javascript language, the operation and display of machining process of ultra high-speed grinding are realized. The main technologies include NC codes compiling, collision detection and material removal. Thirdly, the example of machining simulation using virtual ultra high-speed grinding machine tool can be obtained in the paper. Compared to other CNC machining simulation methods, the method in the paper has reality display, rich features, a good man-machine interaction, etc., and it does not rely on expensive CAD/CAM software. The system files generated by the machining simulation have the small size and can be transferred on the network easily.

Research and Development of UG-Based CAD/ CAM System for Turbine Blade

2011 ◽  
Vol 201-203 ◽  
pp. 215-219
Author(s):  
Fang Jie Ren ◽  
Shi Quan Zhou ◽  
Jian Li ◽  
Zhi Qian Wan ◽  
Yi Zhao ◽  
...  
Keyword(s):  
Research And Development ◽  
Geometric Model ◽  
Three Dimensional ◽  
Cnc Machining ◽  
Design Efficiency ◽  
Machining Center ◽  
Cad Cam ◽  
Database Technology ◽  
Open Api ◽  
Cnc Machining Center

A CAD/ CAM system has been developed for turbine blade’s manufacturing based on the software of UG in accordance with a type of static blade of China Chang Jiang Energy Corp. (Group) in this paper. According to a few parameters input by users, the system automatically generate three-dimensional geometric model of the blade, and through its CAM module, it automatically generates the CNC track for four-axis CNC machining center. A management system has been developed by using UG / Open API, MFC, and database technology so as to improving the design efficiency in the UG.

The CAD/CAM of Hydraulic Valve Block Based on Pro/Engineer

2011 ◽  
Vol 383-390 ◽  
pp. 12-17
Author(s):  
Wen Liang Wu ◽  
Xia Jie Jin ◽  
Ke Li Xing
Keyword(s):  
Data Transmission ◽  
Solid Modeling ◽  
Cnc Machining ◽  
Nc Code ◽  
Cad Cam ◽  
Block Based ◽  
3D Solid ◽  
3D Solid Modeling ◽  
Hydraulic Valve ◽  
Valve Block

This paper uses the Pro/E software for 3D solid modeling and use its Pro/NC module automatically generated NC code of valve block, and communication with CNC machining centers and data transmission to achieve CAD/CAM integration purposes.

Key Technology of the Denture CAD/CAM System

2014 ◽  
Vol 494-495 ◽  
pp. 637-640
Author(s):  
Xiu Guang Ge ◽  
Xue Ling Jiang ◽  
Li Hui Chen ◽  
Jian Hong Liao
Keyword(s):  
Data Processing ◽  
Surface Reconstruction ◽  
Low Cost ◽  
Cnc Machining ◽  
Key Technology ◽  
Model Acquisition ◽  
Key Technologies ◽  
Cad Cam ◽  
Cad Models ◽  
Solid Foundation

The key technologies of denture CAD/CAM system were studied in this study. Key technologies include: model acquisition, data processing, surface reconstruction, creating CAD models, establish standards tooth databases, rapid prototyping and CNC machining. The results show that the actual dentures feasibility of CNC processing systems and the denture model is validated. This study lays solid foundation for the development of the low-cost, lightweight and fast denture CAD/CAM system.

Brass 70/30 and Incremental Sheet Forming Process

2013 ◽  
Vol 554-557 ◽  
pp. 1419-1431 ◽  
Author(s):  
Daniel Fritzen ◽  
Anderson Daleffe ◽  
Jovani Castelan ◽  
Lirio Schaeffer
Keyword(s):  
Incremental Forming ◽  
Single Point ◽  
Sheet Forming ◽  
Incremental Sheet Forming ◽  
Cnc Machining ◽  
Forming Process ◽  
Wall Angle ◽  
Machining Center ◽  
Cad Cam ◽  
Cnc Machining Center

This work addresses through bibliographies and experiments the behavior of sheet brass 70/30 for Incremental Sheet Forming process - ISF, based on the parameters: wall angle (), step vertical (ΔZ) strategy and the way the tool. Experiments based on the method called Single Point Incremental Forming - SPIF. For execution of practical tests, we used the resources: software CAD / CAM, CNC machining center with three axles, matrix incremental, incremental forming tool and a device press sheets. Furthermore, measurement was made of the true deformation () and thickness (s1). Practical tests have shown that the spiral machining strategy yielded a greater wall angle, compared to the conventional strategy outline.

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