Showing posts with label DFAM. Show all posts
Showing posts with label DFAM. Show all posts

Sunday, February 2, 2025

Fused Deposition Modeling - Advances in the Process

 



Evaluation of Fused Deposition Modeling Materials for 3D-Printed Container of Dosimetric Polymer Gel

by Minsik Lee et al.


Gels 2024, 10(2), 146; https://doi.org/10.3390/gels10020146

https://www.mdpi.com/2310-2861/10/2/146


Open Access

Advances in Additive Manufacturing of Polymer-Fused Deposition Modeling on Textiles: From 3D Printing to Innovative 4D Printing—A Review

by Edgar Adrian Franco UrquizaORCID

Advanced Manufacturing Department, Center for Engineering and Industrial Development, CIDESI-Airport, Carretera Estatal 200, km 23, Queretaro 76270, Mexico

Polymers 2024, 16(5), 700; https://doi.org/10.3390/polym16050700

https://www.mdpi.com/2073-4360/16/5/700


https://dozuki.umd.edu/Wiki/Introduction_to_Fused_Deposition_Modeling_%28FDM%29  Machines available in the university Lab.




Process Improvement - Process Parameters


The International Journal of Advanced Manufacturing Technology  Article

Impact of process parameters on improving the performance of 3D printed recycled polylactic acid (rPLA) components

ORIGINAL ARTICLE

Open access

Published: 20 February 2024

Volume 131, pages 3751–3779, (2024)

https://link.springer.com/article/10.1007/s00170-024-13140-7


In order to achieve this goal, significant printing parameters such as layer thickness, infill density, and nozzle temperature were selected.












Sunday, December 8, 2024

Design for 3D Printing - Additive Manufacturing - Product Industrial Engineering - Article - Paper Collection

Industrial engineer has to be the pioneer in using new technology in processes.
Have you tried using additive manufacturing in your processes?




The difference between DfMA & DfAM
Published on January 29, 2021

DFMA MEETS DESIGN FOR ADDITIVE MANUFACTURING (DFAM)
http://www.qualifiedrapidproducts.com/?p=2006


Material Collected Before 24.8.2020
__________________________

Design for 3D Printing or Additive Manufacturing forms part of Product Industrial Engineering. Every engineering activity can have basic engineering content and industrial engineering content. Industrial engineers have to define their focus in an engineering activity. They have to first understand the basic engineering adequately and then contribute to their industrial engineering focus portion related to that engineering activity.



A framework for mapping design for additive manufacturing knowledge for industrial and product design
Patrick Pradel, Zicheng Zhu, Richard Bibb & James Moultrie
Journal of Engineering Design
Volume 29, 2018 - Issue 6, pages 291-326, Published online: 12 Jun 2018
https://www.tandfonline.com/doi/full/10.1080/09544828.2018.1483011

Framework Presented in the paper
Six main stages are indicated. Within each stage issues are highlighted. The framework is presented in a reverse starting with manufacturing and postprocessing.

Manufacture and Postprocessing


Support Removal

Finishing Processes

Reducing Unwanted Processing Defects

Process Planning and Optimization - Part Programming


Build Orientation

Support Optimization

Tool Path Optimization

Infill and Wall Thickness

Production Tolerances

Process Planning Optimization

Detail Design


Feature Size

Feature Shape

Eliminate Features Needing Support

Adding Excess Material to Enable Postprocessing Operations

Embodiment Design


Design for Component/Functional Integration

Hague, Campbell and Dickens (2003)
Zhou et al. (2014)
Schemelzle et al. (2016)
Pradel, Zhu et al (2018)

Design Ignoring Conventional Manufacturing Roles

Design of Functional Surfaces

Conceptual Design


Design and Feature Database

Biomimicry

New Design Opportunities Enabled by AM

Axiomatic Design Theory

Material and Process Selection


Approaches for Selecting Between AM and Conventional Materials and Processes

Approaches for Selecting Between AM  Materials and Processes




IMMENSA TECHNOLOGY LABS -  ADDITIVE MANUFACTURING PROCESS CONSULTANCY

Design for 3D Printing - Additive Manufacturing
Business Value Assessment - Business Case Development - Product Development
Solution Rollout - Supplier Identification and development
Lifecycle Management - Supply chain management
https://www.immensalabs.com/3d-printing-is-the-foundation-of-industry-4-0/





Honeywell Group

85% Cost Reduction Due to Additive Manufacturing - $50,000 to $7,000.

10 sets of inlet booster rake for measuring air flow turbine engine test cells were made for $50,000 using a combination of welding, brazing, EDM, and other conventional medicines. The additive  machining technology center made it for $7,000.

Donald Godfrey, Honeywell, ISABE 2015 Manuscript
https://drc.libraries.uc.edu/handle/2374.UC/745636/browse?type=title

Huge Savings at Company Level - Honeywell Federal Manufacturing & Technologies


Honeywell Federal Manufacturing & Technologies has achieved huge cost reduction. As of FY 2018, they have printed more than 60,000 tooling fixtures for product testing and calculated $125 million in cost avoidance.

Design for Additive Manufacturing - Additive Manufacturing Industrial Engineering are Necessary for Effectiveness and Productivity

3D Printing is not simple.
For industrial parts, There is a workflow before the machine and after the machine with hundreds of variables that need to be specified and controlled to make sure of getting an industrial-grade part reliably, repeatably at reduced cost.
https://www.industryweek.com/technology-and-iiot/state-3d-printing-2019-all-grown-ready-work

Design for Additive Manufacturing - YouTube Video

NPTEL-NOC IITM
Published on 6 May 2019
_____________

_____________







Initial Design for Additive Manufacturing (DFAM) work began in 2007. Its Wikipedia page began in September 2016.



Design for Additive Manufacturing

_______________


_______________


Tutorial Design for 3D Printing

_______________


________________


Article/Paper Collection on DFAM



How Topology Optimization Could Be the Key to Longer-Lasting Hip Implants
1/11/2019
https://www.additivemanufacturing.media/blog/post/how-topology-optimization-could-be-the-key-to-longer-lasting-hip-implants

Performing Topology Optimization: A Step-by-Step Guide
Phillip Keane January 29, 2018
https://www.engineersrule.com/performing-topology-optimization-step-step-guide/


Rethinking ‘Design’ for ‘Additive Manufacturing’
By ATHA UR RAHMAN KHAN, PROGRAM MANAGER ENTREPRENEUR FOR ADDITIVE MANUFACTURING AND DR. JAN RADTKE, VP OF NEW BUSINESS ACCELERATOR, CYIENT. . Jan 07, 2019,
https://www.manufacturingglobal.com/lean-manufacturing/rethinking-design-additive-manufacturing


Designing for additive manufacturing
Tackling familiar challenges takes a new approach
Additive manufacturing frees engineers from conventional design constraints and solves problems around part consolidation, lightweighting, and performance enhancement. However, unlocking these new possibilities requires a different approach to product design.

Discover how today's engineers push boundaries to design for additive manufacturing (DfAM). This e-book overviews the top 3 approaches engineers take to additive: topology optimization, latticing, and generative design.
https://www.autodesk.com/industry/manufacturing/resources/mechanical-engineer/design-for-additive-manufacturing


Design Rules for Metal Additive Manufacturing
December 26th, 2018
https://www.digitalalloys.com/blog/design-rules-metal-additive-manufacturing/

A framework for mapping design for additive manufacturing knowledge for industrial and product design
Patrick Pradel, Zicheng Zhu, Richard Bibb & James Moultrie
Journal of Engineering Design
Volume 29, 2018 - Issue 6, pages 291-326, Published online: 12 Jun 2018
https://www.tandfonline.com/doi/full/10.1080/09544828.2018.1483011

Design Guidelines - Poly1500 - Stereolithography
https://www.materialise.com/en/manufacturing/materials/poly1500/design-guidelines

How to get the most out of additive manufacturing
 August 16, 2018
When evaluating Direct Digital Manufacturing for production, take a methodical analysis of cost, design, assembly, materials, and process to fully understand its benefits. Here are suggested tips.
https://www.designworldonline.com/how-to-get-the-most-out-of-additive-manufacturing/

Additive Manufacturing 101: How to (re)design your parts for Additive Manufacturing
JUNE 29, 2018.
http://canadamakes.ca/design-for-additive-manufacturing/

New technique for additive manufacturing design
May 30, 2018, Sandia National Laboratories
https://phys.org/news/2018-05-technique-additive.html

Advanced Design Applied to an Original Multi-Purpose Ventilator Achievable by Additive Manufacturing
Leonardo Frizziero * OrcID, Giampiero DonniciOrcID, Karim DhaiminiOrcID, Alfredo LiveraniOrcID and Gianni CaligianaOrcID
Department of Industrial Engineering, Alma Mater Studiorum University of Bologna, Viale Risorgimento, 2, I-40136 Bologna, Italy
Appl. Sci. 2018, 8(12), 2635
https://www.mdpi.com/2076-3417/8/12/2635
PDF available


Complex Design in the Age of Additive Manufacturing
FEBRUARY 20, 2018
https://www.manandmachine.co.uk/complex-design-age-additive-manufacturing/

How to Design for Additive Manufacturing: First Steps
October 24, 2017
https://www.digitalengineering247.com/article/how-to-design-for-additive-manufacturing-first-steps/


Design for additive manufacturing. Guidelines and case studies for metal applications
Presentation held at The Cutting Edge, CMTS 2017, Canadian Manufacturing Technology Show, Toronto, 25 - 28 September 2017
http://publica.fraunhofer.de/documents/N-480000.html
pdf available


Design for manufacturing to design for Additive Manufacturing: Analysis of implications for design optimality and product sustainability
A.W.Gebisa, H.G.Lemu
Procedia Manufacturing
Volume 13, 2017, Pages 724-731
open access
https://www.sciencedirect.com/science/article/pii/S2351978917307552
pdf available

The Design for Additive Manufacturing Worksheet
Joran W. Booth, Jeffrey Alperovich, Pratik Chawla, Jiayan Ma, Tahira N. Reid, Karthik Raman
J. Mech. Des. Oct 2017, 139(10): 100904 (9 pages)
https://asmedigitalcollection.asme.org/mechanicaldesign/article/139/10/100904/366998/The-Design-for-Additive-Manufacturing-Worksheet

The Design for Additive Manufacturing Worksheet
Article (PDF Available) in Journal of Mechanical Design 139(10) · July 2017
https://www.researchgate.net/publication/318383972_The_Design_for_Additive_Manufacturing_Worksheet
pdf available



Joran W. Booth; Jeffrey Alperovich; Tahira N. Reid; Karthik Ramani
The Design for Additive Manufacturing Worksheet (Conference)
Proc. ASME. 50190; Volume 7: 28th International Conference on Design Theory and Methodology, August 21, 2016
https://engineering.purdue.edu/cdesign/wp/the-design-for-additive-manufacturing-worksheet-conference/
The paper has to brief literature review and table on evolution of DFAM


What is Design for Additive Manufacturing?
June 14, 2016
https://www.engineersrule.com/design-additive-manufacturing/

Design for Additive Manufacturing: Trends, opportunities.  - DTU Orbit
This paper presents the major opportunities, constraints, and economic considerations for Design for Additive Manufacturing.
http://orbit.dtu.dk/files/144078607/Thompson_et_al._2016_Design_for_Additive_Manufacturing_Trends_opportunities_considerations_and_constraints.pdf
pdf available





Guido A. O. Adam, Detmar Zimmer, (2015) "On design for additive manufacturing: evaluating geometrical limitations", Rapid Prototyping Journal, Vol. 21 Issue: 6, pp.662-670, https://doi.org/10.1108/RPJ-06-2013-0060

The Definitive Guide to Designing for Additive Manufacturing
http://www.manufacturinglounge.com/the-definitive-guide-to-designing-for-additive-manufacturing/


Design for additive manufacturing
https://www.renishaw.com/en/design-for-additive-manufacturing--43298

Design for additive manufacturing
https://www.ifm.eng.cam.ac.uk/insights/design-for-transformation/design-for-additive-manufacturing/

DESIGN FOR ADDITIVE MANUFACTURING
The rapid growth of the additive manufacturing industry over the past few years has prompted the need to develop methods and processes that enable optimized AM-specific designs. Download this paper to learn about new strategies and best practices for designing AM parts.
https://ewi.org/new-paper-design-for-additive-manufacturing/
pdf available

Design for Additive Manufacturing - Frontiers of Engineering
Apr 28, 2013 - Design for Additive Manufacturing. Opportunities Barriers and Democratization. Opportunities, Barriers, and Democratization.
https://www.naefrontiers.org/File.aspx?id=39135
pdf available
Seepersaad presentation


Design for Additive Manufacturing - Solid Freeform Fabrication
by DW Rosen
sffsymposium.engr.utexas.edu/Manuscripts/2007/2007-34-Rosen.pdf


Additional Resources

How to Design for 3D Printing Success
By TriMech on May 1, 2018

Design for 3D Printing - Additive Manufacturing  Google Books 

Fabricated: The New World of 3D Printing
Front Cover
Hod Lipson, Melba Kurman
John Wiley & Sons, 22-Jan-2013 - Computers - 320 pages

Based on hundreds of hours of research and dozens of interviews with experts from a broad range of industries, Fabricated offers readers an informative, engaging and fast-paced introduction to 3D printing now and in the future.
https://books.google.co.in/books?id=MpLXWHp-srIC


Beginning Design for 3D Printing
Joe Micallef
Apress, 13-Oct-2015 - Computers - 409 pages
https://books.google.co.in/books?id=_YfDCgAAQBAJ

Design for 3D Printing: Scanning, Creating, Editing, Remixing, and Making in Three Dimensions
Samuel N. Bernier, Bertier Luyt, Tatiana Reinhard
Maker Media, Inc., 01-Oct-2015 - Computers - 160 pages
https://books.google.co.in/books?id=29GqCgAAQBAJ


Evolution of design Guidelines for DFAM Redesign of a Component 10 years later
Page 3 of
Industrializing Additive Manufacturing - Proceedings of Additive Manufacturing in Products and Applications - AMPA2017
Mirko Meboldt, Christoph Klahn
Springer, 05-Sep-2017 - Technology & Engineering - 362 pages
https://books.google.co.in/books?id=slU0DwAAQBAJ


Fusion 360 for Makers: Design Your Own Digital Models for 3D Printing and CNC Fabrication
Lydia Sloan Cline
Maker Media, Inc., 11-May-2018 - Computers - 304 pages
https://books.google.co.in/books?id=NKxaDwAAQBAJ


Some Interesting Design Illustrations for  Additive Manufacturing


GM's 3D-printed seat bracket -  40 percent lighter and 20 percent stronger than the original part.
https://www.additivemanufacturing.media/articles/why-gms-electric-future-is-also-an-additive-future

3D PRINTING IS THE FOUNDATION OF INDUSTRY 4.0 IN THE UAE


Inlet manifold for a truck engine producing 914 hp and 700 lb/ft of torque was 3D printed by Ford Performance and RWTH Aachen’s Digital Additive Production Institute in Germany.
https://automobilefanatics.com/ford-performance-builds-3d-printed-intake-manifold-for-ken-blocks-hoonitruck/.



3D printed ukulele
https://www.3ders.org/articles/20130609-3d-printed-ukulele-sounds-fantastic.html


Updated on 24 August 2020,  7 July 2020,  22 September 2019,  25 July 2019,  23 July 2019, 16 July 2019, 5 February 2019


Saturday, August 24, 2024

Laser Powder Bed Fusion (LPBF) Process - Productivity Science

Laser Powder Bed Fusion (LPBF) Process


The LPBF parameter space consists of laser power, scan speed, laser spot size, scanning strategy, feedstock, part geometry, and machine conditions. The selection of process parameters determines the resulting microstructure and component properties.

-----------------------

Smart process mapping of powder bed fusion additively manufactured metallic wicks using surrogate modeling

Published: 06 March 2024

(2024)


Journal of Intelligent Manufacturing


Mohammad Borumand, Saideep Nannapaneni, Gurucharan Madiraddy, Michael P. Sealy, Sima Esfandiarpour Borujeni & Gisuk Hwang 


Abstract

Powder bed fusion is an innovative additive manufacturing (AM) technique to achieve metallic wick structures for efficient two-phase thermal management systems. However, a technical challenge lies in the lack of standard process maps as it currently relies on an expensive trial and error approach. In this study, five types of surrogate models for classification analysis (i.e., naïve Bayes, logistic regression, random forest, support vector machine, and Gaussian process classification) were constructed and compared to efficiently unlock the relations between five process parameters (i.e., laser power, scan speed, hatch spacing, spot diameter, and effective laser energy) and wick manufacturability. The models were trained using data from a total of 187 AM wick manufacturability experiments. Using four process parameter (PP) model (five PP model without effective laser energy), the Gaussian process classification (GPC) showed the maximum median prediction accuracy (PA) of 93%, while it further improved to 99.7% using support vector machine (SVM) and five process parameter model. Also, the median PAs of the SVM and GPC remains above 98.5% with only 60% of the total experimental data using five PP model. The sensitivity analysis showed that the hatch spacing was the most sensitive parameter for the wick manufacturability using four PP model, while the effective laser energy is the most sensitive one using five PP model. This study provides insights into the smart selection of optimal process parameters for the desired metallic AM wicks.


 Unlock the relations between five process parameters (i.e., laser power, scan speed, hatch spacing, spot diameter, and effective laser energy) and wick manufacturability.


https://link.springer.com/article/10.1007/s10845-024-02330-5


Effects of process parameters on the surface characteristics of laser powder bed fusion printed parts: machine learning predictions with random forest and support vector regression

Naol Dessalegn Dejene, Hirpa G. Lemu & Endalkachew Mosisa Gutema 

Open access

The International Journal of Advanced Manufacturing Technology

Volume 133, pages 5611–5625, (2024)

You have full access to this open access article


Abstract

Laser powder bed fusion (L-PBF) fuses metallic powder using a high-energy laser beam, forming parts layer by layer. This technique offers flexibility and design freedom in metal additive manufacturing (MAM). However, achieving the desired surface quality remains challenging and impacts functionality and reliability. L-PBF process parameters significantly influence surface roughness. Identifying the most critical factors among numerous parameters is essential for improving quality. This study examines the effects of key process parameters on the surface roughness of AlSi10Mg, a widely used aluminum alloy in high-tech industries, fabricated by L-PBF. Part orientation, laser power, scanning speed, and layer thickness were identified as crucial parameters via cause-and-effect analysis. To systematically examine their effects, the Taguchi method was employed within the framework of the design of experiment (DoE). Experimental results and statistical analysis revealed that laser power, scanning speed, and layer thickness significantly influence surface roughness parameters: arithmetic mean (Ra) and root mean square (Rq). Main effect plots and energy density analyses confirmed their impact on surface quality. Microscopic investigations identified surface flaws such as spattering, balling, and porosity contributing to poor quality. Given the complex interplay between parameters and surface quality, accurately predicting their effects is challenging. To address this, machine learning models, specifically random forest regression (RFR) and support vector regression (SVR), were used to predict the effects on surface roughness. The RFR model’s R2 values for predicting Ra and Rq are 97% and 85%, while the SVR model’s predictions are 85% and 66%, respectively. Evaluation metrics demonstrated that the RFR model outperformed SVR in predicting surface roughness.

https://link.springer.com/article/10.1007/s00170-024-14087-5?fromPaywallRec=true


 Journal of Intelligent Manufacturing  

A universal predictor-based machine learning model for optimal process maps in laser powder bed fusion process

Published: 23 August 2022

Volume 34, pages 3341–3363, (2023)



Journal of Intelligent Manufacturing


Zhaochen Gu, Shashank Sharma, Daniel A. Riley, Mangesh V. Pantawane, Sameehan S. Joshi, Song Fu & Narendra B. Dahotre 



Abstract


The primary bottlenecks faced by the laser powder bed fusion (LPBF) process is the identification of optimal process parameters to obtain high density (> 99.8%) and a good surface finish (< 10 µm) in the fabricated components. Prediction of optimal process maps with the help of machine learning (ML) models is still challenging due to extensive training data, which proves to be expensive in additive manufacturing. In view of this, the present study employs six different supervised ML algorithms on a comparatively small data set of 33 experiments to predict relative density and surface roughness. It has been observed that input data (predictor) curation can increase the accuracy of the ML models even with a small data set. In the ML prediction model, the mean absolute percentage error (MAPE) was reduced by 30% (relative density) and 21.94% (surface roughness) with volumetric energy density as an input parameter instead of laser power, scanning speed, hatch space, and layer thickness. The choice of non-dimensional energy input as a universal predictor allows for an increase in training size and the translation capability of trained ML models from one machine/material combination to another. The ML model based on increased training data size (198 for relative density and 173 for surface roughness) procured from the material processed/fabricated on different LPBF machines showcased reasonable R2 values of 79.11% and 80.3% for relative density and surface roughness, respectively.

https://link.springer.com/article/10.1007/s10845-022-02004-0?fromPaywallRec=false


Laser Powder Bed Fusion (LPBF) Process


The LPBF parameter space consists of laser power, scan speed, laser spot size, scanning strategy, feedstock, part geometry, and machine conditions. The selection of process parameters determines the resulting microstructure and component properties.


Various libraries of process parameters for a given machine and material have been determined through physical testing by AM suppliers or individual laboratories. An integrated computational materials engineering (ICME) approach reduces the amount of physical testing and informs design engineers about detrimental performance expected for specific process parameters. 


Frontiers of Engineering: Reports on Leading-Edge Engineering from the 2019 Symposium (2020)

http://nap.naptionalacademies.org/25620

File name  25620.pdf



Optimization of Laser Powder Bed Fusion Processing

https://www.mdpi.com/2504-4494/3/1/21/pdf


Full Research Article

Open Access

Published: 07 April 2022

Individual process development of single and multi-material laser melting in novel modular laser powder bed fusion system

Jochen Schanz, Nabirul Islam, David Kolb, David K. Harrison, Anjali K. M. De Silva, Dagmar Goll, Gerhard Schneider & Harald Riegel 

Progress in Additive Manufacturing volume 7, pages481–493 (2022)

https://link.springer.com/article/10.1007/s40964-022-00276-9


Journal of Manufacturing Processes

Volume 78, June 2022, Pages 231-241

Journal of Manufacturing Processes

Increasing productivity of laser powder bed fusion manufactured Hastelloy X through modification of process parameters

Claudia Schwerz, Fiona Schulz, Elanghovan Natesan,Lars Nyborg

It is very interesting article


Ud. 24.8.2024

Pub. 30.5.2022








Saturday, December 18, 2021

DFMA - NPTEL Course

Engineering in Industrial Engineering -  Machine work study or machine effort improvement, value engineering and design for manufacturing and assembly are major engineering based IE methods. All are available as existing methods.

https://nptel.ac.in/content/storage2/courses/107103012/module1/lec1.pdf

https://nptel.ac.in/content/storage2/courses/107103012/module1/lec2.pdf

https://nptel.ac.in/content/storage2/courses/107103012/module1/lec3.pdf

https://nptel.ac.in/content/storage2/courses/107103012/module1/lec4.pdf


https://nptel.ac.in/content/storage2/courses/107103012/module2/lec1.pdf

https://nptel.ac.in/content/storage2/courses/107103012/module2/lec2.pdf

https://nptel.ac.in/content/storage2/courses/107103012/module2/lec3.pdf

https://nptel.ac.in/content/storage2/courses/107103012/module2/lec4.pdf

Powder Metallury

https://nptel.ac.in/content/storage2/courses/107103012/module2/lec5.pdf


Module 3 - Machining


Machining

Machining - General

https://nptel.ac.in/content/storage2/courses/107103012/module3/lec1.pdf

Turning

https://nptel.ac.in/content/storage2/courses/107103012/module3/lec2.pdf

Round Holes

https://nptel.ac.in/content/storage2/courses/107103012/module3/lec3.pdf

Milling

https://nptel.ac.in/content/storage2/courses/107103012/module3/lec4.pdf

Shaping, Planing and Slotting

https://nptel.ac.in/content/storage2/courses/107103012/module3/lec5.pdf

Broaching

https://nptel.ac.in/content/storage2/courses/107103012/module3/lec6.pdf


Module 4 - Forming
https://nptel.ac.in/content/storage2/courses/107103012/module4/lec1.pdf
https://nptel.ac.in/content/storage2/courses/107103012/module4/lec2.pdf
https://nptel.ac.in/content/storage2/courses/107103012/module4/lec3.pdf
https://nptel.ac.in/content/storage2/courses/107103012/module4/lec4.pdf
https://nptel.ac.in/content/storage2/courses/107103012/module4/lec5.pdf
https://nptel.ac.in/content/storage2/courses/107103012/module4/lec6.pdf
https://nptel.ac.in/content/storage2/courses/107103012/module4/lec7.pdf
https://nptel.ac.in/content/storage2/courses/107103012/module4/lec8.pdf



Module 5 


https://nptel.ac.in/content/storage2/courses/107103012/module5/lec1.pdf


DESIGN FOR POLISHING AND PLATING


https://nptel.ac.in/content/storage2/courses/107103012/module5/lec2.pdf

https://nptel.ac.in/content/storage2/courses/107103012/module5/lec3.pdf

https://nptel.ac.in/content/storage2/courses/107103012/module5/lec4.pdf

https://nptel.ac.in/content/storage2/courses/107103012/module5/lec5.pdf

https://nptel.ac.in/content/storage2/courses/107103012/module5/lec6.pdf

https://nptel.ac.in/content/storage2/courses/107103012/module5/lec7.pdf



Module 6

https://nptel.ac.in/content/storage2/courses/107103012/module6/lec1.pdf
https://nptel.ac.in/content/storage2/courses/107103012/module6/lec2.pdf
https://nptel.ac.in/content/storage2/courses/107103012/module6/lec3.pdf
https://nptel.ac.in/content/storage2/courses/107103012/module6/lec4.pdf


Module 7

https://nptel.ac.in/content/storage2/courses/107103012/module7/lec1.pdf
https://nptel.ac.in/content/storage2/courses/107103012/module7/lec2.pdf
https://nptel.ac.in/content/storage2/courses/107103012/module7/lec3.pdf


Module 8

https://nptel.ac.in/content/storage2/courses/107103012/module8/lec1.pdf
https://nptel.ac.in/content/storage2/courses/107103012/module8/lec2.pdf
https://nptel.ac.in/content/storage2/courses/107103012/module8/lec3.pdf



You can access files from the FaceBook Group
Management and Industrial Engineering - Effectiveness and Efficiency
Public group - 737 members

Full NPTEL Course Page
https://nptel.ac.in/courses/107/103/107103012/

Name: Abinash Kumar Swain
Email: swainfmeiitr  @   ernet.in
Deptartment of Mechanical and Industrial Engineering
Indian Institute of Technology Roorkee
Roorkee - 247667, Uttarakhand, India


Ud 18.12.2021
Pub 10.12.2021











Monday, February 4, 2019

Design for 3D Printing - Additive Manufacturing - DFAM - Introduction




Liquid-Based Additive Manufacturing Systems 


 3D Systems' Sterolithography Apparatus
 Stratasys' PolyJet
 3D Systems' MultiJet Printing System
 EnvisionTec's Perfactory®
 RegenHU's 3D Bioprinting
 Rapid Freeze Prototyping
 Optomec's Aerosol Jet Systems
 Two-Photon Polymerisation
 3DCeram's Ceramic Parts
 Other Liquid-Based AM Systems

Solid-Based Additive Manufacturing Systems 


Stratasys' Fused Deposition Modelling
Mcor Technologies' Selective Deposition Lamination
Sciaky's Electron Beam Additive Manufacturing
Fabrisonic's Ultrasonic Additive Manufacturing
Other Solid-Based AM Systems

Powder-Based Additive Manufacturing Systems 


3D Systems' SLS
SLM Solutions' Selective Laser Melting
3D Systems' CJP Technology
BeAM's LMD Systems
Arcam's Electron Beam Melting
DMG MORI's Hybrid AM
ExOne's Digital Part Materialisation
HP's Multi Jet Fusion™
Other Powder-Based AM Systems


DFAM is to be  viewed as a new design approach: a framework for the composition of a part or an assembly, and the application of specific design tools geared toward AM.

By focusing on how a product should function rather than how it’s made, companies drive innovation. The decision can be to use a traditional process like CNC machining, AM, or a hybrid of both.  The best solution is derived from an unencumbered analysis for the desired function.Direct Digital Manufacturing (DDM) has proven especially useful in many situations, whether as an end-use solution or as means to augment existing processes.





Bibliography

https://www.designworldonline.com/how-to-get-the-most-out-of-additive-manufacturing/