NDLI: A parametric analysis of direct laser deposition process using vibration control feeding system

Content Provider	Springer Nature Link
Author	Nazir, Kamran Ahmad, Furqan Miran, Sajjad Sohn, Chang Hyun
Copyright Year	2016
Abstract	In the current economic situation, the major concern of the manufacturing companies is to produce components of high quality with low cost. Direct laser deposition (DLD) is a blown-powder laser deposition process and an emerging technology which is commonly used in the manufacturing industries to join different components of metals. In order to reduce the cost of the DLD process, it is important to optimize the deposition efficiency which is the main objective of current study. Experimental tests were performed to investigate the effect of different powder mass flow rate, laser power intensities, and laser scanning speed on powder deposition efficiency. A newly designed coaxial powder nozzle was used to deliver fine size of powder to a targeted small focal point, and desired flow rate of the metallic powder was achieved by vibrating the powder delivery nozzle at sonic frequencies. From the experimental results, it was observed that the powder mass flow rate which can be affected by vibration frequency has a significant effect on deposition efficiency. With the increase of laser power intensities, deposition efficiency and deposition quality increased while powder flow rate have a negative effect on the material deposition efficiency. By selecting the appropriate parameters, up to 90 % of maximum deposition efficiency was achieved which is a significant improvement as compared with deposition efficiency obtained by conventional gas feed system used by other researchers.
Starting Page	1669
Ending Page	1676
Page Count	8
File Format	PDF
ISSN	02683768
Journal	The International Journal of Advanced Manufacturing Technology
Volume Number	89
Issue Number	5-8
e-ISSN	14333015
Language	English
Publisher	Springer London
Publisher Date	2016-07-30
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Laser scanning speed Direct laser deposition (DLD) Clad height Clad width Deposition efficiency Industrial and Production Engineering Media Management Mechanical Engineering Computer-Aided Engineering (CAD, CAE) and Design
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Mechanical Engineering Computer Science Applications Software

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