Aspects of Using Tool Axis Inclination Angle

Sadílek, Marek; Čep, Róbert; Budak, Igor; Soković, Mirko

doi:10.5545/sv-jme.2010.205

Cited by 27 publications

(15 citation statements)

References 8 publications

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“…Distribution of forces at 5-axis milling with a toroidal cutter [1] From dependencies (3) and (4) it follows that the cutting force component values depend on the geometry of the cutting section, mainly affected by axial infeed a p , feed rate on blade f z, angle of cutter milling cutter angle φ and κ rtool cutting edge angle. As shown in the work [21] the tool cutting edge angle κ r has a major influence on the geometry of the cutting layer and the machining power generated in the machining process. As a result of the variable radii of curvature of the surface to be treated, there is a change in the κ r between the cutting edge of the cutter blade and the work surface.…”

Section: Cutting Forcesmentioning

confidence: 89%

Cutting layer and cutting forces in a 5-axis milling of sculptured surfaces using the toroidal cutter

Gdula

Burek

2017

Journal of Machine Engineering

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The purpose of this article was to evaluate the significance of the influence of five- axis orientation parameters of a toroidal cutter axis and the geometrical parameters of the machined sculptured surface on the intersection of the cut layer in a 5-axis machining. An impact assessment was performed by simulating concave-convex and convex-concave surfaces using a discrete method of direct transformation in a CAD environment. It was shown that only the radius of curvature of the surface in the feed direction and the angle of the tool axis affected the change in the intersection of the cutting layer. Subsequently, experimental tests were conducted that aimed at determining the mathematical models of the influence of these important parameters on the components of the cutting force. The object of the experimental studies was a convex and concave surface of a turbine blade of Inconel 718 alloy. The R300-016B20L-08L Sandvik Coromant toroid cutter was used for the tests. Based on the results of the study it was found that the lead angle in the machining of the convex surface and concave turbine blade should be continuously varied with the change of radius of curvature in the direction of the machined surface profile

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Section: Cutting Forcesmentioning

confidence: 89%

Cutting layer and cutting forces in a 5-axis milling of sculptured surfaces using the toroidal cutter

Gdula

Burek

2017

Journal of Machine Engineering

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“…The redundancy permits to choose an optimized robot configuration among an infinite set of solutions, as also clarified in Figure 1. Depending on the technological requirements of the specific machining task the redundant DoF/DoFs can be optimized to improve the process results [23]. Another emerging field for industrial robots is represented by the additive manufacturing and laser cladding, that is, metal material deposition with techniques such as laser metal deposition or electron beam melting [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Optimal Robot Motion Planning of Redundant Robots in Machining and Additive Manufacturing Applications

et al. 2019

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The paper deals with the generation of optimal trajectories for industrial robots in machining and additive manufacturing applications. The proposed method uses an Ant Colony algorithm to solve a kinodynamic motion planning problem. It exploits the kinematic redundancy that is often present in these applications to optimize the execution of trajectory. At the same time, the robot kinematics and dynamics constraints are respected and robot collisions are avoided. To reduce the computational burden, the task workspace is discretized enabling the use of efficient network solver based on Ant Colony theory. The proposed method is validated in robotic milling and additive manufacturing real-world scenarios.

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“…Analytical approach was used to calculate the cut geometry and scallop height in five axis milling because it was much faster and more accurate when compared to the discrete approaches [6][7][8]. Several researchers [9][10][11][12][13] investigated the effect of both inclination fand tilt angle to the scallop height in fiveaxis milling.The studies showed that, with the same tool inclination angle, a flat-end tool results in the smallest scallop height compared with a toroidal and a ball-end tools. The scallop height does not vary with the inclination angle when cutting is using a ball-end tool, while it is significantly reduced for a toroidal tool at small inclination angles.…”

Section: Introductionmentioning

confidence: 99%

A hybrid analytical and discrete based methodology to calculate path scallop of helical toroidal cutter in five-axis milling

Hendriko¹

2018

FME Transactions

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This paper presents a new method to calculate path scallop height of toroidal cutter during free-form surface machining in five-axis milling. The scallop height was defined as the distance between the tool intersection point and the normal point on the part surface. The tool intersection point was determined analytically by implementing the grazing method to define the swept curve of toroidal cutter. Meanwhile the normal surface on the part surface was determined using a hybrid analytical and discrete based methodology. The part surface was discretized by a number of normal vectors, then, they were used for defining the part surface mathematically. In this study,the effect of helical angle of cutting edge was taken into consideration in the model development. The proposed model was successfully used to generate the path scallop data for two model parts with free-form surface profiles. The effect of helical angle to the scallop height was also tested and the results showed that the helical angle tends to decrease the scallop height. The verification test to check the accuracy of the proposed method was performed and the results proved that the method was accurate.

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Aspects of Using Tool Axis Inclination Angle

Cited by 27 publications

References 8 publications

Cutting layer and cutting forces in a 5-axis milling of sculptured surfaces using the toroidal cutter

Cutting layer and cutting forces in a 5-axis milling of sculptured surfaces using the toroidal cutter

Optimal Robot Motion Planning of Redundant Robots in Machining and Additive Manufacturing Applications

A hybrid analytical and discrete based methodology to calculate path scallop of helical toroidal cutter in five-axis milling

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