Build strategies for rapid manufacturing of components of varying complexity

Simhambhatla, S and Karunakaran, K P (2015) Build strategies for rapid manufacturing of components of varying complexity. Rapid Prototyping Journal, 21 (3). pp. 340-350. ISSN 1355-2546

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Abstract

Purpose - This paper aims to develop build strategies for rapid manufacturing of components of varying complexity with the help of illustration. Design/methodology/approach - The build strategies are developed using a hybrid layered manufacturing (HLM) setup. HLM, an automatic layered manufacturing process for metallic objects, combines the best features of two well-known and economical processes, viz., arc weld-deposition and milling. Depending on the geometric complexity of the object, the deposition and/or finish machining may involve fixed (3-axis) or variable axis (5-axis) kinematics. Findings - Fixed axis (3-axis) kinematics is sufficient to produce components free of undercuts and overhanging features. Manufacture of components with undercuts can be categorized into three methods, viz., those that exploit the inherent overhanging ability, those that involve blinding of the undercuts in the material deposition stage and those that involve variable axis kinematics for aligning the overhang with the deposition direction. Research limitations/implications - Although developed using the HLM setup, these generic concepts can be used in a variety of metal deposition processes. Originality/value - This paper describes the methodology for realizing undercut features of varying complexity and also chalks out the procedure for their manufacture with the help of case studies for each approach.

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IITH Creators:
IITH CreatorsORCiD
Simhambhatla, Shttp://orcid.org/0000-0001-6015-7593
Item Type: Article
Additional Information: The authors wish to acknowledge the use of VRONI software of Martin Held for 2D offsetting and area filling in this research work.
Uncontrolled Keywords: Deposition; Layered manufacturing; Manufacturing technology; Process planning; Rapid manufacturing
Subjects: Physics > Mechanical and aerospace
Divisions: Department of Mechanical & Aerospace Engineering
Depositing User: Team Library
Date Deposited: 11 May 2015 04:22
Last Modified: 10 Aug 2017 11:38
URI: http://raiith.iith.ac.in/id/eprint/1502
Publisher URL: https://doi.org/10.1108/RPJ-07-2012-0062
OA policy: http://www.sherpa.ac.uk/romeo/issn/1355-2546/
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