The Closed Impeller Milling Avoidance Programming Algorithm

2013 ◽  
Vol 753-755 ◽  
pp. 1270-1273
Author(s):  
Quan Liang ◽  
Dong Hai Su ◽  
Jie Wang ◽  
Ye Mu Wang
Keyword(s):  
Path Planning ◽  
Configuration Space ◽  
Tool Path ◽  
Programming Algorithm ◽  
3D Space ◽  
Collision Problem ◽  
Cad Cam ◽  
Cutting Path ◽  
Cam Software ◽  
2D Space

An automatically correction algorithm was promoted to solve the problem that most of the commercial CAD/CAM software can only detect the collision, but can not generate collision-free tool path on cutting path planning. The algorithm uses the configuration space theory to map the boundary into the 2D configuration space, and then the 3D space interference collision problem was transformed into 2D space. Finally, the algorithm was used to generate cutting path of a closed impellers runner. From the result of cutting path planning, the proposed algorithm was able to avoid the interference in the process of tool path planning about closed impeller.

Study on 5-Axis Machining Key Technology of High-Precision Aluminum Alloy Integral Impeller

2009 ◽  
Vol 69-70 ◽  
pp. 433-436
Author(s):  
X.J. Wang ◽  
S.L. Li ◽  
Can Zhao
Keyword(s):  
Aluminum Alloy ◽  
Path Planning ◽  
Machine Tool ◽  
Tool Path ◽  
Tool Path Planning ◽  
Process Plan ◽  
Key Technology ◽  
Aero Engine ◽  
Cad Cam ◽  
Cam Software

Using the typical CAD/CAM software UG, an aero-engine integral impeller was studied in this paper, including 3-D modeling, tool-path planning and simulation. A regular impeller was machined with a 5-axis machine tool, which showed the process plan was feasible.

Research on Chamfer Software of Complex Parts

2013 ◽  
Vol 631-632 ◽  
pp. 1335-1341
Author(s):  
Shi Yong ◽  
Wen Tao Liu
Keyword(s):  
3D Model ◽  
Tool Path ◽  
Machining Parameters ◽  
Cad Cam ◽  
Programming Software ◽  
A Chain ◽  
Definition Of ◽  
Complex Parts ◽  
Cam Software ◽  
Location Point

In order to meet the needs of enterprises for chamfering complex parts, based on the customization of commercial CAD/CAM software, chamfer programming software is developed. According to user’s machining demands for a part, a chain of edges of a part is extracted from its 3D model. With preprocessing of the chain of edges, the continuity of the chain is estimated, and the start and end point of those edges are automatic obtained. Furthermore, with human-machine dialogue, machining parameters is set by users. By definition of the primary and secondary surfaces of the chain of edges, and interpolation of the edges, the positions of cutter location point and postures of cutter are calculated. Finally the interference of tool path is checked, and tool path is simulated. The software solves the programming problem of chamfering complex parts.

Virtual Reality Interface Using PDA for Street View Color Design

2005 ◽  
Vol 277-279 ◽  
pp. 318-323
Author(s):  
Yang Hee Nam
Keyword(s):  
Virtual Reality ◽  
Architectural Design ◽  
Virtual Reality Technology ◽  
Design Problems ◽  
Color Design ◽  
3D Space ◽  
Street View ◽  
Cad Cam ◽  
Realistic View ◽  
Cam Software

Architectural design is one of those areas that have actively employed interactive design tools such as CAD/CAM software. In order to add a realistic view of the design results in the 3D work process, there have been several recent attempts to employ a virtual reality technology that allows architects to explore design in 3D space. However, VR’s weakness is that common interaction tasks, such as navigation and selection, are still not supported conveniently in 3D space. In addition, VR devices are generally unfamiliar to the average person and are too expensive to use. This paper presents a VR framework that makes the design task easily achieved by employing a PDA interface for a VR interaction applied to street-view emotional color design problems.

scholarly journals A solid-analytical-based model for extracting cutter-workpiece engagement in 5-axis flank machining

2018 ◽  
Vol 237 ◽  
pp. 01009
Author(s):  
Dongdong Li ◽  
Weimin Zhang ◽  
Tengfei Shang ◽  
Tianhong Gao ◽  
Shuo Liu ◽  
...  
Keyword(s):  
Material Removal ◽  
Tool Path ◽  
Removal Rate ◽  
Cutting Tools ◽  
Simulation Method ◽  
Flank Milling ◽  
Milling Force ◽  
3D Space ◽  
High Efficient ◽  
Cam Software

5-axis flank milling is applied extensively in aerospace, die-molds, and automotive industries because of high efficient material removal rate. Commercial CAM software can only simulate the tool path and collision at present, but cannot handle with cutting force during cutting process due to the variable geometrical cutter workpiece engagement (CWE) region of 5-axis milling. This paper presents a novel solid analytical model for extracting the CWE maps. The CWE is obtained analytically by performing Boolean operations between the cutter and in-process-workpiece (IPW) at any given cutter location (CL) point, instead of using the cutter and the removal volume. The proposed process simulation method could identify the CWE efficiently and precisely for general cutting tools. Finally, the CWE boundaries are mapped from a 3D space into a 2D plane defined by the immersion angle and the axial depth of a given cutter. The proposed solution can be easily integrated into the CAM software for predicting milling force and optimizing parameters in 5-axis milling.

Micro-EDM Milling of Micro Compressor Prototype

2007 ◽  
Author(s):  
Zhenlong Wang ◽  
Yinghuai Dong
Keyword(s):  
Tool Path ◽  
Electrode Wear ◽  
Micro Edm ◽  
Simple Tool ◽  
Micro Power ◽  
Fast Development ◽  
Cad Cam ◽  
Rotor Disk ◽  
Micro Turbine ◽  
Cam Software

Micro power system is becoming more and more important for micro- and nano-scale system. The fast development of MEMS (Micro Electromechanical Systems) has strongly enhanced the application of new harder work materials. The fabrication of metallic 3D microstructures has been one of the most attractive topics of micro machining. Currently the basic materials of Micro-turbine Engineering were nonmetal materials such as SiC, most of them are 2D or quasi-3D structures. This paper focuses on the manufacturing process on micro compressor prototype by micro-EDM milling. The micro compressor prototype contains the rotor disk and stator disk. A simple tool path generation by CAD/CAM software and a general electrode wear compensation strategy is presented. The micro compressor prototype with rotor and stator disks was successfully fabricated by using this strategy, and the materials of workpieces are nickel alloy GH4169 and titanium alloy TC4.

An Algorithm of Non-Iso Parameters Cutting Path Planning Using Toroid Cutter

2013 ◽  
Vol 373-375 ◽  
pp. 2088-2091
Author(s):  
Quan Liang ◽  
Dong Hai Su ◽  
Jie Wang ◽  
Ye Mu Wang
Keyword(s):  
Path Planning ◽  
Trajectory Planning ◽  
Tool Path ◽  
Search Algorithm ◽  
Free Form ◽  
Processing Efficiency ◽  
Planning Algorithm ◽  
Path Planning Algorithm ◽  
Five Axis ◽  
Cutting Path

For the problem of poor processing efficiency of iso-parameter tool path planning algorithm, this paper proposed a non iso-parameter trajectory planning algorithm. First established a mathematical model of five-axis machining toroid cutter, then analyzed the toroid cutter and machining surface partial differential geometric properties, proposed one kind of iso-scallop path search algorithm. Finally, using the above algorithm developed an application of trajectory planning for free-form surface and generated tool paths for such surface. The trajectories generated verified the algorithm is practicable.

Additive Manufacturing Bead Deposition Based Rotary Tool Path Applications

2018 ◽  
Author(s):  
Ruth Jill Urbanic ◽  
Bob Hedrick
Keyword(s):  
Additive Manufacturing ◽  
Tool Path ◽  
Thermal Spraying ◽  
Direct Energy Deposition ◽  
Tool Paths ◽  
Rotary Tool ◽  
Rotationally Symmetric ◽  
Direct Energy ◽  
Cad Cam ◽  
Cam Software

Additive manufacturing layer-based solution approaches have been applied for several technologies and systems. Process planning solutions are being developed for planar applications, but rotary applications can benefit from an additive manufacturing ‘rotary layering’ strategy as well. There are systems that have been developed to coat pipes and other rotationally symmetric components, and there are multi-axis applications that would require rotary-like tool paths. Developing and exploring additive rotary tool path applications is the focus of this research. These initial solutions will be applicable for direct energy deposition and thermal spraying models. AM rotary proof of concept tool paths are developed using a commercial CAD/CAM software, and a software development kit (SDK). Selected case studies are presented, with varying levels of geometric complexity.

Distributed Integration of Knowledge-Based Process Planning With CAM Software

2004 ◽  
Author(s):  
Dusan N. Sormaz ◽  
Narender Neerukonda ◽  
Vikesh Jain
Keyword(s):  
Process Planning ◽  
Manufacturing Systems ◽  
Tool Path ◽  
Planning System ◽  
Rule Base ◽  
Seamless Integration ◽  
Rule Based ◽  
Traditional Mode ◽  
Cad Cam ◽  
Cam Software

Seamless integration of manufacturing planning activities, though being imperative for application of advanced technologies, is still not completely developed. Integration between design and manufacturing systems is usually done within tightly implemented suite of CAD/CAM applications. However, there is a need to integrate these applications into a wider framework in which manufacturing knowledge is incorporated into planning tasks, and tasks may be executed in distributed environment. This paper proposes such a framework. The methodology is based on integration of CAM software with rule-based process planning on several levels. The basis for this approach is existence of feature based CAD model that is usually designed in CAD package. The process-planning task can be performed in two modes: traditional mode and distributed mode. In traditional mode, tightly integrated CAM package is used to create necessary tool paths and detailed specification for particular geometry from the design. They are exported into a CAPP package for cost optimization and sequencing for the final NC program. Distributed mode allows utilization of rule base for creation of manufacturing operations. Results are imported into CAM package for tool path generation and NC code post processing. CAD/CAM package exports its feature into rule-based process planning system. For each feature, rules are fired in order to select the most appropriate machining operation, tool, and cutting parameters. Process sequencing can also be performed. In both modes, integration may be carried out between different computers using TCP/IP protocol to enable distributed processing of different tasks. The current results in implementing the prototype, which supports proposed methodology and few test cases of both operating modes, are also described.

An Integrated CAD/CAM System for Design and Manufacturing of High-Curvature Surfaces

1999 ◽  
Author(s):  
Liping Wang ◽  
Subramaniam S. Nair
Keyword(s):  
New York ◽  
Tool Path ◽  
Rear View Mirror ◽  
City College ◽  
Design And Manufacturing ◽  
Cad Cam ◽  
Filling Analysis ◽  
Five Axis ◽  
The City ◽  
Cam Software

Abstract This paper presents an integrated CAD/CAM system developed at the City College of the City University of New York (CCNY) for design, analysis and manufacturing of high-curvature surfaces. Surface modeling technique which is characterized by modeling from curvature or slope information, is discussed and practiced to design high-curvature surfaces such as rear-view mirror covers for automobiles. Plastic molding is chosen to manufacture the designed parts. Molding parameters such as entrance position and mold inserts are analyzed and determined using tools such as mold filling analysis (C-FLOW/EZ). Newly modified curvature matching method, together with methods provided by commercial CAM software, are adopted to generate five-axis NC tool path to manufacture the designed mold components. An example on design and manufacturing of a rear-view mirror cover using the integrated CAD/CAM system for high-curvature surfaces is given to illustrate the effectiveness of this system.

An Effective Algorithm for Tool-Path Airtime Optimization during Leather Cutting

2010 ◽  
Vol 102-104 ◽  
pp. 373-377 ◽  
Author(s):  
Wei Bo Yang ◽  
Yan Wei Zhao ◽  
Jing Jie ◽  
Wan Liang Wang
Keyword(s):  
Simulated Annealing ◽  
Tool Path ◽  
Simulated Annealing Algorithm ◽  
Dynamic Programming Algorithm ◽  
Programming Algorithm ◽  
Genetic Simulated Annealing Algorithm ◽  
Generalized Traveling Salesman Problem ◽  
Hybrid Intelligence ◽  
Optimal Contour ◽  
Cutting Path

Tool-path airtime optimization problem during multi-contour processing in leather cutting is regarded as generalized traveling salesman problem. A hybrid intelligence algorithm is proposed. The improved genetic simulated annealing algorithm is applied to optimize cutting path selected arbitrarily firstly, and an optimal contour sequence is founded, then problem is changed into multi- segment map problem solved with dynamic programming algorithm. The algorithm's process and its various parameters are given simultaneously, and its performance is compared with simulated annealing and standard genetic algorithm alone. The results show that the algorithm is more effective.

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