Research Article | OPEN ACCESS
Deformation Investigation of Weld Based Rapid Prototyping
1Abdul Samee, 1Ghulam Zakria, 1Khalid H. Hashmi, 1Amir Shahzad, 2Pervez Mughal and 1Muhammad Waseem
1Advanced Engineering Research Organization, Wah Cantt, Pakistan
2University of Engineering and Technology, Lahore, Pakistan
Research Journal of Applied Sciences, Engineering and Technology 2014 21:4519-4529
Received: December 28, 2013 | Accepted: January 24, 2014 | Published: June 05, 2014
Abstract
This study investigates the deformation produced in the weld-based prototype and to optimize the welding parameters to minimize this deformation. Weld-based prototyping is a method to produce form-fit and near-net-shape or net shape prototypes. However, the large amount of heat exposure for the substrate plate and for previously built layers is one of the limitations of weld based prototyping. This causes high temperature gradient which results in deformation, residual stresses, warpage and poor surface quality. In this study a part is made by using welding by incremental layer buildup method. This yielded anisotropic material properties in the part with the non-homogeneous structure and porosity. In present study above mentioned problems were minimized by proper selection and optimizing the deposition parameters such as inter-pass cooling time, heat sink size, deposition speed, applying mechanical constraints and preheating. For analysis of present weld based prototype, experimental approach is adopted. In such developments, the phenomenon of deformation is very crucial to control. In this study a focus has been made on investigation of deformation produced and the parameters effecting this deformation.
Keywords:
Rapid prototyping, weld-based prototyping, welding deformation,
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Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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