On the effective tool path planning algorithms for sculptured surface manufacture

1995 ◽  
Vol 28 (4) ◽  
pp. 823-838 ◽  
Author(s):  
K.K. George ◽  
N. Ramesh Babu
Keyword(s):  
Path Planning ◽  
Tool Path ◽  
Sculptured Surface ◽  
Tool Path Planning ◽  
Planning Algorithms

Efficient NC Tool Path Planning Based on the Subdivision of Sculptured Surface

2014 ◽  
Vol 635-637 ◽  
pp. 497-501
Author(s):  
Li Min ◽  
Biao Bai ◽  
Yu Hou Wu ◽  
De Hong Zhao
Keyword(s):  
Path Planning ◽  
Tool Path ◽  
High Efficiency ◽  
Parametric Method ◽  
Sculptured Surface ◽  
Machining Efficiency ◽  
Tool Path Planning ◽  
Tool Paths ◽  
Surface Subdivision ◽  
Planning Methods

In this paper, we have presented a method to generate efficient NC tool paths based on the surface subdivision. The main objective is to achieve high efficiency in the machining of sculptured surface. The NC machining efficiency can be improved by segmenting the whole surface into distinct areas according to the characters of sculptured surface and by using different size mills and different tool path planning methods to machine the areas. The iso-parametric method and large mills are used in the curvature changing little areas. While the iso-scallop method and small mills are used in curvatures changing large areas. This can make full use of tool path generation methods and mills, which improve the machining efficiency of sculpture effectively.

A New Tool-Path Generation Algorithm for Sculptured Surface Using Taper-Cutter

2007 ◽  
Vol 10-12 ◽  
pp. 308-311
Author(s):  
Li Cheng Fan ◽  
L.N. Sun ◽  
Zhi Jiang Du
Keyword(s):  
Path Planning ◽  
Tool Path ◽  
Tool Path Generation ◽  
Surface Model ◽  
Sculptured Surface ◽  
Path Generation ◽  
Tool Path Planning ◽  
Generation Algorithm ◽  
Mesh Approximation ◽  
Simulation And Experiment

In 3-axis NC machining, most algorithms of the sculptured surface tool-path generation are valid for ball-cutter, and the axes are designed to realize pure translation. A tool-path generation algorithm using taper-cuter is proposed in this article. And one axis of the 3-axis NC tool machine is designed to realize swing motion. The Stereo Lithography (STL) model is the most popular triangular mesh approximation of the 3D surface model. Considering the special swing mechanical and taper-cutter, arc-zigzag tool-path planning and deform Z-map grid methods are proposed, which incorporate triangular vertexes method and the Z-map method. Finally, some simulation and experiment results are provided.

A New Principle of CNC Tool Path Planning for Three-Axis Sculptured Part Machining—A Steepest-Ascending Tool Path

2004 ◽  
Vol 126 (3) ◽  
pp. 515-523 ◽  
Author(s):  
Zezhong C. Chen ◽  
Geoffrey W. Vickers ◽  
Zuomin Dong
Keyword(s):  
Path Planning ◽  
Tool Path ◽  
Tool Path Generation ◽  
Surface Shape ◽  
Sculptured Surface ◽  
Machining Efficiency ◽  
Path Generation ◽  
Tool Path Planning ◽  
Tool Paths ◽  
Sculptured Parts

Three-axis CNC milling is often used to machine sculptured parts. Due to the complex surface shape of these parts, well-planned tool paths can significantly increase the machining efficiency. In this work a new principle of CNC tool path planning for 3-axis sculptured surface machining is proposed. Generic formula to calculate the steepest tangent direction of a sculptured surface is derived, and the algorithm of the steepest-ascending tool path generation is introduced. A single steepest-ascending tool path has been verified to be more efficient than a single tool path of any other type. The relationship between machining efficiency and three key variables, tool feed direction, cutter shape, and surface shape, is revealed. The newly introduced principle is used in planning tool paths of a sculptured surface to demonstrate the advantages of the steepest-ascending tool paths. This new tool path scheme is further integrated into the more advanced steepest-directed and iso-cusped (SDIC) tool path generation technique. Applications of the new tool path principle and the SDIC tool paths to the machining of sculptured parts are demonstrated.

Stochastic Fractal Modeling and Process Planning for Machining Using Two-Dimensional Iterated Function System

2008 ◽  
Vol 392-394 ◽  
pp. 575-579
Author(s):  
Yu Hao Li ◽  
Jing Chun Feng ◽  
Y. Li ◽  
Yu Han Wang
Keyword(s):  
Path Planning ◽  
Tool Path ◽  
Iterated Function System ◽  
Numerical Control ◽  
Function System ◽  
Tool Path Planning ◽  
Ongoing Research ◽  
Iterated Function ◽  
Planning Algorithm ◽  
Path Planning Algorithm

Self-affine and stochastic affine transforms of R2 Iterated Function System (IFS) are investigated in this paper for manufacturing non-continuous objects in nature that exhibit fractal nature. A method for modeling and fabricating fractal bio-shapes using machining is presented. Tool path planning algorithm for numerical control machining is presented for the geometries generated by our fractal generation function. The tool path planning algorithm is implemented on a CNC machine, through executing limited number of iteration. This paper describes part of our ongoing research that attempts to break through the limitation of current CAD/CAM and CNC systems that are oriented to Euclidean geometry objects.

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