NDLI: Surface tension-powered build dimension control in laser additive manufacturing process

Content Provider	Springer Nature Link
Author	Lee, Y. S. Farson, D. F.
Copyright Year	2015
Abstract	This research is aimed at providing insight into the process phenomena that determine the surface finish quality and dimensional accuracy of laser additive manufactured parts. It was found that melt pool fluid flow has a major effect on the sidewall dimensions of the final deposit. Thermocapillary gradient is the main driving force for melt pool flow, and the gradient can potentially be controlled by material composition. Thus, the effects of three characteristic thermocapillary gradients (positive, negative, mixed) on melt pool fluid flows and build geometry are investigated in this study. The work studied mechanisms responsible for sidewall nonuniformity and deposit bulge in detail. The results showed that the bulge in deposit width occurring at the start of the build is reduced by approximately 56 % by deposition of material having mixed thermocapillary gradient as compared to the bulge resulting from deposition of material with a negative thermocapillary gradient. Also, melt pool temperature distributions are visualized during laser deposition of five-layer single-track builds. More accurate build geometry and reduced deposit sidewall bulge can be expected to lead to lower total cost of additive manufactured parts.
Starting Page	1035
Ending Page	1044
Page Count	10
File Format	PDF
ISSN	02683768
Journal	The International Journal of Advanced Manufacturing Technology
Volume Number	85
Issue Number	5-8
e-ISSN	14333015
Language	English
Publisher	Springer London
Publisher Date	2015-10-31
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Laser additive manufacturing Melt pool fluid flow Transport simulation Thermocapillary gradient Surface finish Deposit bulge Industrial and Production Engineering Production 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

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

A feedforward controller for tuning laser cladding melt pool geometry in real time

Melt pool temperature control using LabVIEW in Nd:YAG laser blown powder cladding process

Real-time control of microstructure in laser additive manufacturing

Automated intelligent manufacturing system for surface finish control in CNC milling using support vector machines

Multiphysics simulation of laser–material interaction during laser powder depositon

On the surface quality of additive manufactured parts

Macroscopic simulation and experimental measurement of melt pool characteristics in selective electron beam melting of Ti-6Al-4V

Performance of laser polishing in finishing of metallic surfaces

Sustainable manufacturing: evaluation and modeling of environmental impacts in additive manufacturing

Surface tension-powered build dimension control in laser additive manufacturing process

Similar Documents

A feedforward controller for tuning laser cladding melt pool geometry in real time

Melt pool temperature control using LabVIEW in Nd:YAG laser blown powder cladding process

Real-time control of microstructure in laser additive manufacturing

Automated intelligent manufacturing system for surface finish control in CNC milling using support vector machines

Multiphysics simulation of laser–material interaction during laser powder depositon

On the surface quality of additive manufactured parts

Macroscopic simulation and experimental measurement of melt pool characteristics in selective electron beam melting of Ti-6Al-4V

Performance of laser polishing in finishing of metallic surfaces

Sustainable manufacturing: evaluation and modeling of environmental impacts in additive manufacturing

Surface tension-powered build dimension control in laser additive manufacturing process