Research Papers

Phenomenological Study of Multivariable Effects on Exit Burr Criteria During Orthogonal Cutting of AlSi Alloys Using Principal Components Analysis

[+] Author and Article Information
Tristan Régnier

Arts et Métiers Paristech Cluny,
Rue porte de Paris,
Cluny 71250, France
e-mail: tristan.regnier@ensam.eu

Guillaume Fromentin

Arts et Métiers Paristech Cluny,
Rue porte de Paris,
Cluny 71250, France
e-mail: guillaume.fromentin@ensam.eu

Alain D'Acunto

Arts et Métiers Paristech Metz,
7 rue Félix Savart,
Metz 57073, France
e-mail: alain.dacunto@ensam.eu

José Outeiro

Arts et Métiers Paristech Cluny,
Rue porte de Paris,
Cluny 71250, France
e-mail: jose.outeiro@ensam.eu

Bertrand Marcon

Arts et Métiers Paristech Cluny,
Rue porte de Paris,
Cluny 71250, France
e-mail: bertrand.marcon@ensam.eu

Arnaud Crolet

Linamar – Montupet,
3 rue de Nogent,
Laigneville 60290, France
e-mail: arnaud.crolet@montupet-group.com

Manuscript received April 12, 2018; final manuscript received June 16, 2018; published online July 9, 2018. Assoc. Editor: Radu Pavel.

J. Manuf. Sci. Eng 140(10), 101006 (Jul 09, 2018) (10 pages) Paper No: MANU-18-1231; doi: 10.1115/1.4040623 History: Received April 12, 2018; Revised June 16, 2018

During machining, burrs are produced along a part's edges, which can affect a final product lifetime or its efficiency. Moreover, time-consuming and expensive techniques are needed to be applied to remove such burrs. Therefore, companies attempt to reduce burrs formation during machining by manipulating the cutting conditions. This study aims to analyze and quantify the effect of a wide number of parameters on burr formation, resulting from different mechanisms, during orthogonal cutting of AlSi alloys. A highly developed experimental methodology combining high-speed camera recording, laser scanning, and in situ deburring system is used for this study. A statistical analysis is then applied to evaluate relations between controlled parameters and the occurrence of exit burrs morphologies. The results show that the uncut chip thickness influences burr types distribution along the exit edge and chamfer geometry. Among the cutting parameters and tool geometry, tool rake angle is the main parameter affecting burr height. Finally, it is found that none of the burrs geometrical characteristics ranges are piloted by cutting parameters or tool geometry. The assumption of a possible microstructural influence on these outputs is made.

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Fig. 1

Poisson burr (a), rollover burr (b), tear burr (c), and cut off burr (d) (adapted from da Silva et al. [16] and Gillespie and Blotter [1])

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Fig. 9

Description of the one-sigma confidence range selection for Bh with and without chamfer

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Fig. 8

Burr scanning setup

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Fig. 7

Experimental sequence of cutting tests

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Fig. 5

Definitions of the in-plane exit angle and wedge angle (adapted from Hashimura et al. [17])

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Fig. 4

Different types of burrs obtained during milling (from Chern [9])

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Fig. 3

Influence of rake angle (a) and (b) and uncut chip thickness (c) and (d) on stress triaxiality distribution (from Abushawashi [8])

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Fig. 2

Geometrical descriptors for (a) burr without chamfer, (b) burr with chamfer and three-dimensional reconstruction of two samples' exit edges morphologies, exhibiting both burr types (c) and (d), after Régnier et al. [7]

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Fig. 6

Experimental setup of the cutting tests using high speed imaging system

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Fig. 16

Observations contribution graphic for the first and third axes

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Fig. 14

Comparison between both burr types generated with different rake angles

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Fig. 15

Correlation circle for the first and third axes

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Fig. 11

Correlation circle for the first and second axes

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Fig. 12

Observations contribution graphic for the first and second axes

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Fig. 13

Formation of burr with chamfer



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