Mesh-based tool path generation for constant scallop-height machining

2007 ◽  
Vol 37 (1-2) ◽  
pp. 15-22 ◽  
Author(s):  
Sung-Gun Lee ◽  
Hyun-Chul Kim ◽  
Min-Yang Yang
Keyword(s):  
Tool Path ◽  
Tool Path Generation ◽  
Path Generation ◽  
Scallop Height ◽  
Constant Scallop Height

Smooth Cutting Operation Strategy for High Finishing Machining

2014 ◽  
Vol 875-877 ◽  
pp. 896-900
Author(s):  
Xiao Fei Bu ◽  
Hu Lin ◽  
Long Chen
Keyword(s):  
Tool Path ◽  
Tool Path Generation ◽  
Machining Process ◽  
Path Generation ◽  
Tool Paths ◽  
Constant Scallop Height ◽  
Simulation And Experiment ◽  
Cutting Operation ◽  
Five Axis ◽  
Finishing Machining

High finishing machining tool path generation methods are usually adopted for five-axis computer numerically controlled machining of sculptured surface parts. The quality of the high finishing machining has an important effect on that of the surface. In this paper, a high finishing machining tool path generation method is introduced to generate an optimal tool path. The initial tool path is firstly created based on the constant scallop height, then the derived tool paths are generated as a kind of the diagonal curve by the initial tool path, and at last, the tool path smoothing algorithm is applied to the generated tool path. This path algorithm can ensure higher level of smooth of the surface been machined. Finally, the results of simulation and experiment of the machining process are given to verify the smooth and applicability of the proposed method.

A Higher-Order Formula of Path Interval for Tool-Path Generation

2011 ◽  
Vol 5 (5) ◽  
pp. 663-668 ◽  
Author(s):  
Toshiyuki Obikawa ◽  
◽  
Tsutomu Sekine ◽  
Keyword(s):  
Surface Roughness ◽  
Fourth Order ◽  
Tool Path ◽  
Order Term ◽  
Computational Cost ◽  
Tool Path Generation ◽  
Free Form ◽  
Path Generation ◽  
Scallop Height ◽  
Free Form Surfaces

This paper presents a novel fourth-order formula for determining path intervals and comprehensively considers path interval formulas. In tool-path generation, a path interval is generally formulated as a scallopheight polynomial. Controlling scallop height in mechanical machining improves surface roughness or machining efficiency. We derived a novel fourth-order formula for determining path intervals after reviewing several formulas, then compared formulas. This clarified the differences between path interval formulas with graphic evidence. In micromechanical machining, an approximate expression has an advantage in computational cost but a disadvantage in accuracy. Although our proposed formula includes the fourth order-term scallop height, it requires low computational cost and can be applied to the determining path intervals for free-form surfaces in micromechanical machining. In addition, a correction method of the surface roughness on a free-form surface measured with a profilometer was proposed.

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