Optimizing the numerical algorithm in Fast Constant Engagement Offsetting Method for generating 2.5D milling tool paths

Many applications are available for the syntactic and semantic verification of NC milling tool paths in simulation environments. However, these solutions – similar to the conventional tool path generation methods – are generally based on geometric considerations, and for that reason they cannot address varying cutting conditions. This paper introduces a new application of a simulation algorithm that is capable of producing all the necessary geometric information about the machining process in question for the purpose of further technological analysis. For performing such an analysis, an image space-based NC simulation algorithm is recommended, since in the case of complex tool paths it is impossible to provide an analytical description of the process of material removal. The information obtained from the simulation can be used not only for simple analyses, but also for optimisation purposes with a view to increasing machining efficiency.

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5-Axis Flank Milling Tool Path Smoothing Based on Kinematical Behaviour Analysis

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.223.691 ◽

2011 ◽

Vol 223 ◽

pp. 691-700 ◽

Cited By ~ 1

Author(s):

Xavier Beudaert ◽

Pierre Yves Pechard ◽

Christophe Tournier

Keyword(s):

Tool Path ◽

Maximum Velocity ◽

Flank Milling ◽

Machining Time ◽

Machined Surface ◽

Tool Paths ◽

Area Of Interest ◽

Milling Tool ◽

Joint Coordinates ◽

Kinematical Behaviour

In the context of 5-axis flank milling, the machining of non-developable ruled surfaces may lead to complex tool paths to minimize undercut and overcut. The curvature characteristics of these tool paths generate slowdowns affecting the machining time and the quality of the machined surface. The tool path has to be as smooth as possible while respecting the maximum allowed tolerance. In this paper, an iterative approach is proposed to smooth an initial tool path. An indicator of the maximum feedrate is computed using the kinematical constraints of the considered machine tool, especially the maximum velocity, acceleration and jerk. Then, joint coordinates of the tool path are locally smoothed in order to raise the effective feedrate in the area of interest. Machining simulation based on a N-buffer algorithm is used to control undercut and overcut. This method has been tested in flank milling of an impeller and can be applied in 3 to 5-axis machining.

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Experimental Investigation of the Effect of the Machine Kinematic Behavior on the Surface Topography and Roughness in High Speed Ball end Milling of the AISI4142 Steel

10.21203/rs.3.rs-197062/v1 ◽

2021 ◽

Author(s):

Sai Lotfi ◽

Belguith Rami ◽

Baili Maher ◽

Desseins Gilles ◽

Bouzid Wassila

Keyword(s):

Surface Topography ◽

High Speed ◽

End Milling ◽

Experimental Investigations ◽

Ball End Milling ◽

Tool Paths ◽

Stationary Zone ◽

Machining Errors ◽

Kinematic Behavior ◽

Milling Tool

Abstract The analysis of the surface topography in ball end milling is an objective studied by many researchers, several methods were used and many combinations of cutting conditions and machining errors are considered. In the milling tool paths the trajectories presents a points of changing direction where the tool decelerates before and accelerates after respecting the velocity profiles of the machine. In this paper, we propose experimental investigations of the effect of the kinematic behavior of the machine tool on the surface quality. A poor topography and roughness are remarked on the deceleration and the acceleration zones compared to the stationary zone.

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Tool path generation for a car rear door die: UMO versus rest milling tool paths

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/671/1/012146 ◽

2020 ◽

Vol 671 ◽

pp. 012146

Author(s):

Ali K. Alwan ◽

Wissam K. Hamdan

Keyword(s):

Tool Path ◽

Tool Path Generation ◽

Path Generation ◽

Tool Paths ◽

Rear Door ◽

Milling Tool

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Generating Milling Tool Paths for Prismatic Parts Using Genetic Programming

Procedia CIRP ◽

10.1016/j.procir.2015.06.060 ◽

2015 ◽

Vol 33 ◽

pp. 490-495 ◽

Cited By ~ 4

Author(s):

Jack Barclay ◽

Vimal Dhokia ◽

Aydin Nassehi

Keyword(s):

Genetic Programming ◽

Tool Paths ◽

Prismatic Parts ◽

Milling Tool

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Production of Castings by Patternless Process

Archives of Foundry Engineering ◽

10.2478/v10266-012-0017-x ◽

2012 ◽

Vol 12 (1) ◽

pp. 87-92

Author(s):

R. Pastirčák ◽

D. Urgela ◽

E. Krivoš

Keyword(s):

Water Glass ◽

3D Model ◽

Tool Paths ◽

Milling Tool ◽

Moulding Compound ◽

Mould Cavity ◽

Model Setting ◽

Process Method

Production of Castings by Patternless ProcessThis paper deals with production of safety inlay for steam locomotive valve by the Patternless Process method. For the moulds creation was used moulding mixtures of II. generation, whereas binder was used a water glass. CNC miller was used for creation of mould cavity. Core was created also by milling into block made of moulding compound. In this article will be presented also making of 3D model, setting of milling tool paths and parameters for milling.

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