Local interference detection and avoidance in five-axis NC machining of sculptured surfaces

2004 ◽  
Vol 25 (3-4) ◽  
pp. 343-349 ◽  
Author(s):  
Tao Chen ◽  
Peiqing Ye ◽  
Jinsong Wang
Keyword(s):  
Nc Machining ◽  
Interference Detection ◽  
Sculptured Surfaces ◽  
Local Interference ◽  
Five Axis

Gouge detection and tool position modification for five-axis NC machining of sculptured surfaces

1995 ◽  
Vol 48 (1-4) ◽  
pp. 739-745 ◽  
Author(s):  
F. Li ◽  
X.C. Wang ◽  
S.K. Ghosh ◽  
D.Z. Kong ◽  
T.Q. Lai ◽  
...  
Keyword(s):  
Nc Machining ◽  
Sculptured Surfaces ◽  
Tool Position ◽  
Five Axis

Five-Axis NC Machining of Sculptured Surfaces

1999 ◽  
Vol 15 (1) ◽  
pp. 7-14 ◽  
Author(s):  
Yu (Michael) Wang ◽  
Xiaowei (Sherrie) Tang
Keyword(s):  
Nc Machining ◽  
Sculptured Surfaces ◽  
Five Axis

Flat-Ended Tool Swept Sections for Five-Axis NC Machining of Sculptured Surfaces

1999 ◽  
Vol 122 (1) ◽  
pp. 158-165 ◽  
Author(s):  
R. Sarma
Keyword(s):  
Numerical Methods ◽  
Tool Path ◽  
Nc Machining ◽  
Tool Path Generation ◽  
Path Generation ◽  
Sculptured Surfaces ◽  
Accurate Representation ◽  
Five Axis

The concept of swept sections for flat-ended tools is revisited with the goal of improving the accuracy of calculations in five-axis tool path generation. Firstly, the notions of partial and total swept sections (distinct from traditional swept sections) are introduced. It is shown that partial and total swept sections provide a more accurate representation of the geometry of the moving tool compared to traditional swept sections. Next, geometric and numerical methods focused on calculating partial swept sections are presented. These methods are based on calculating plane-circle intersections. Finally, the calculated partial swept sections are compared to the traditional swept sections. Variations from the traditional swept sections are characterized to provide guidelines to the tool path programmer. [S1087-1357(00)71101-4]

Global tool interference detection in five-axis machining of sculptured surfaces

2002 ◽  
Vol 216 (10) ◽  
pp. 1345-1353 ◽  
Author(s):  
Y-L Cai ◽  
G Xi
Keyword(s):  
Iterative Algorithm ◽  
Minimum Distance ◽  
High Efficiency ◽  
New Method ◽  
Interference Detection ◽  
Sculptured Surfaces ◽  
Tool Interference ◽  
Five Axis ◽  
Corrective Method

This paper presents a new method for the detection and elimination of global interference in five-axis machining of sculptured surfaces. Projecting points on the surface to the axis of cutter, the minimum distance from surface to cutter axis can be directly calculated by an iterative algorithm; the amount of interference is subsequently determined. A corrective method for generating an interferential-free cutter location is then proposed. The implementation has proved that the proposed method has a high efficiency and precision.

Interference-Free Multi-Axis NC Machining of Cylindrical Cam Using Enveloping Element

2009 ◽  
Vol 419-420 ◽  
pp. 333-336
Author(s):  
Jeng Nan Lee ◽  
Chih Wen Luo ◽  
Hung Shyong Chen
Keyword(s):  
Cutting Tool ◽  
Nc Machining ◽  
Model Material ◽  
Solid Model ◽  
End Mill ◽  
Generating Method ◽  
Collision Problem ◽  
Five Axis ◽  
Cutting Path ◽  
Cutting Simulations

To obtain the flexibility of choice of cutting tool and to compensate the wear of the cutting tool, this paper presents an interference-free toolpath generating method for multi-axis machining of a cylindrical cam. The notion of the proposed method is that the cutting tool is confined within the meshing element and the motion of the cutting tool follows the meshing element so that collision problem can be avoided. Based on the envelope theory, homogeneous coordinate transformation and differential geometry, the cutter location for multi-axis NC machining using cylindrical-end mill is derived and the cutting path sequences with the minimum lead in and lead out are planned. The cutting simulations with solid model are performed to verify the proposed toolpath generation method. It is also verified through the trial cut with model material on a five-axis machine tool.

Automatic Planning for 5-Axis Sculptured Surface Machining

1994 ◽  
Author(s):  
Yuan-Shin Lee ◽  
Tien-Chien Chang
Keyword(s):  
Sculptured Surface ◽  
Sculptured Surfaces ◽  
Design Modification ◽  
Surface Machining ◽  
Sculptured Surface Machining ◽  
Cutter Path ◽  
Automatic Planning ◽  
Five Axis ◽  
Five Axes ◽  
Complete Operation

Abstract In modern product design, sculptured surfaces are commonly used for functional and artistic shape design. Design of sculptured surfaces is evolutionary, consisting primarily of incremental changes to existing part surfaces. Manual operation planning for sculptured surface machining is known to be error-prone and inefficient, which requires considerable checking, verification, and rework. Five-axis machining has higher productivity and better machining quality than 3-axis machining. However, the programming for 5-axis machining is more difficult due to the complex simultaneous cutter movements along the machine’s five axes. This paper presents a systematic methodology to generate operation plans for 5-axis sculptured surface machining. A complete operation plan and the error-free cutter path can be automatically generated from the CAD part design. To achieve design for manufacturing of sculptured surface products, the machining unfeasibility information can be fed back to the designer for further design modification. Results of computer implementation and testing examples are also presented.

Five-axis CNC milling for effective machining of sculptured surfaces

1993 ◽  
Vol 31 (11) ◽  
pp. 2559-2573 ◽  
Author(s):  
H. D. CHO ◽  
Y. T. JUN ◽  
M. Y. YANG
Keyword(s):  
Cnc Milling ◽  
Sculptured Surfaces ◽  
Five Axis
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