scholarly journals A3 Tool Path Generation for 5-Axis Control Milling Based on Area Division Method(Digital design and digital manufacturing(CAD/CAM))

2009 ◽  
Vol 2009.5 (0) ◽  
pp. 15-20 ◽  
Author(s):  
Takehisa KOIZUMI ◽  
Keiichi NAKAMOTO ◽  
Tohru ISHIDA ◽  
Yoshimi TAKEUCHI
Keyword(s):  
Tool Path ◽  
Tool Path Generation ◽  
Digital Design ◽  
Digital Manufacturing ◽  
Path Generation ◽  
Cad Cam

HSM Strategies of CAD/CAM Systems — Part I Tool Path Generation

2010 ◽  
Vol 426-427 ◽  
pp. 520-524 ◽  
Author(s):  
Song Lin Ding ◽  
John Mo ◽  
D. Yang
Keyword(s):  
High Speed ◽  
Metal Cutting ◽  
Tool Path ◽  
Tool Path Generation ◽  
Path Generation ◽  
Cnc Machine ◽  
Technical Requirements ◽  
Cad Cam ◽  
High Feed ◽  
Cutting Processes

Owning to the ultra high feed rate and spindle speed, tool path patterns which are less important in conventional metal cutting processes becomes critical in High Speed Machining (HSM). Without an appropriate tool path strategy HSM can not be fully implemented even though the CNC machine has HSM potentials. In practice attentions are usually drawn to advanced hardware components; tool path pattern catering to HSM is often overlooked. This paper introduces the principles of tool path generation for HSM. Essential properties of HSM and its technical requirements on the CAD/CAM system are summarized. The state-of-the-art technologies and practice-oriented tool path generation methodologies are presented.

Enhanced strategy for milling corners

2002 ◽  
Vol 216 (8) ◽  
pp. 1135-1154 ◽  
Author(s):  
H S Choy ◽  
K W Chan
Keyword(s):  
Computer Aided Design ◽  
Tool Path ◽  
Tool Path Generation ◽  
Path Generation ◽  
Practical Applications ◽  
Cutting Resistance ◽  
Pocket Milling ◽  
Cad Cam ◽  
Contour Parallel Tool Path ◽  
Aided Design

Tool path generation based on contour-parallel offset has many practical applications, especially in pocket milling. However, the tool path segments offset from the pocket boundary usually form many corners. In milling operation, these corners with accumulated material will have an adverse effect on milling performance. This paper proposes an improved numerically controlled (NC) tool path pattern for pocket milling. Bow-like tool path segments are appended to a conventional contour-parallel tool path at the corner positions. The cutter loops along the appended tool path so that the corner material is machined progressively in several passes. By adjusting the number of appended tool path loops, cutting resistance can be controlled. The proposed tool path generation for dealing with different corner shapes was implemented as an addon user function in a computer aided design/manufacture (CAD/CAM) system. Cutting tests confirmed that the proposed tool path pattern is useful for clearing accumulated material at pocket corners while maintaining a higher cutting stability.

A Dedicated CAD/CAM System for 5-Axis Machining of Marine Propeller

2001 ◽  
Author(s):  
Jae-Woong Youn ◽  
Yongtae Jun ◽  
Sehyung Park
Keyword(s):  
Lead Time ◽  
Tool Path ◽  
General Purpose ◽  
Tool Path Generation ◽  
Path Generation ◽  
Marine Propeller ◽  
Marine Propellers ◽  
Tool Paths ◽  
System Validation ◽  
Cad Cam

Abstract The manufacture of a marine propeller typically requires long lead-time to generate 5-axis tool paths. It usually takes several days to manufacture a satisfactory propeller with a general purpose CAD/CAM system. This paper proposes a novel methodology for tool path generation of 5-axis machining of marine propellers. Using the geometric characteristics of propellers, the system first computes check vectors and then generates interference-free tool paths. An iterative NURBS modeling technique is used to improve the accuracy of the models and to increase the productivity. The system has been implemented with C++ and OpenGL graphic library on the Windows system. The system validation and sample results are also given and discussed.

An Adaptive Tool Path Generation for Large Scale Wedge/Aspheric Lens Element Grinding Based on Isophote Interpolation

2011 ◽  
Vol 175 ◽  
pp. 121-125
Author(s):  
Ning Ning Zhang ◽  
Chen Jiang ◽  
Zhen Zhong Wang ◽  
Yin Biao Guo
Keyword(s):  
Large Scale ◽  
Tool Path ◽  
Tool Path Generation ◽  
Cnc Machining ◽  
Numerical Control ◽  
Path Generation ◽  
Aspheric Lens ◽  
Lens Element ◽  
Wedge Prism ◽  
Cad Cam

Large scale wedge/aspheric lens element is a combination of wedge prism and aspheric lens as a single piece component forming a decentred lens, which is primarily manufactured by Computerized Numerical Control (CNC) machining, especially 3-axis CNC grinding. This paper presents an efficient tool path generation approach based on isophote interpolation. The interpolation guarantees that interpolated points always stay on the iso-inclination curve of the parametric surface. This symmetry ensures that the method can improve and automate large scale wedge/aspheric lens element machining for 3-axis CAD/CAM systems. As part of the validation process, the tool paths generated are analyzed and compare with the desired part.

Tool Path Optimization of 2D Contour Considering Stock Boundary

2012 ◽  
Vol 251 ◽  
pp. 169-172
Author(s):  
Fu Zhong Wu
Keyword(s):  
Present Method ◽  
Tool Path ◽  
Three Dimensional ◽  
Boundary Curve ◽  
Tool Path Generation ◽  
Path Optimization ◽  
Path Generation ◽  
Offset Curves ◽  
Measuring Machine ◽  
Tool Diameter

Based on analyzing the existing algorithms, a novel tool path generation of 2D contour considering stock boundary is presented. Firstly the boundary points of stock are obtained by three-dimensional measuring machine. And the boundary curve is constructed by method of features identifying. The stock boundary is offset toward outside with tool diameter. An enclosed region is formed between the contour curves and the offset curves of stock boundary. The tool path is generated by form of parallel spiral by offsetting the stock boundary in the enclosed region. Finally the validity of present method is demonstrated by an example.

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