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Research Papers

New Process and Machine for Layered Manufacturing of Metal Parts

[+] Author and Article Information
Hashem Ghariblu

Mechatronics Laboratory,
Mechanical Engineering Department,
University of Zanjan,
Zanjan, Iran
e-mail: ghariblu@znu.ac.ir

Saeid Rahmati

Mechatronics Laboratory,
Mechanical Engineering Department,
Zanjan University,
Zanjan, Iran
e-mail: saeed_rahmati_b@yahoo.com

1Corresponding author.

Contributed by the Manufacturing Engineering Division of ASME for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received September 17, 2012; final manuscript received December 29, 2013; published online May 21, 2014. Assoc. Editor: Jack Zhou.

J. Manuf. Sci. Eng 136(4), 041004 (May 21, 2014) (8 pages) Paper No: MANU-12-1278; doi: 10.1115/1.4026446 History: Received September 17, 2012; Revised December 29, 2013

This paper deals with a combined additive and subtractive process for metal parts production. Starting from the configuration of commercial LOM machines, a new machine design is proposed for metal parts, equipped with ATC with various form tools and capable of adaptive slicing. Then, the attention is focused on the adaptive slicing algorithm. The advantages of the proposed solution and its application, in comparison to existing solutions are its improved aesthetic appearance of the part. Also, this new methodology in its final form would result the faster product with better accuracy.

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Figures

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Fig. 1

LOM machine introduced in our before research

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Fig. 2

Schematic view of a conventional LOM machine

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Fig. 5

Small size end mills

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Fig. 6

Milling cutter to use in the proposed LM machine

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Fig. 10

Structure of data storage of layer boundaries

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Fig. 11

Part generated from revolved splines: (a) solid model, (b) sliced model, and (c) real part

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Fig. 12

Variation in layer thickness from bottom to top

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Fig. 8

Approximation of the layer edge for inner edges

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Fig. 7

Approximation of the layer edge for outer edges

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Fig. 13

Bell shaped part generated from revolved splines: (a) solid model, (b) sliced model, and (c) real part

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Fig. 14

Variation in layer thickness from bottom to top

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