Very interesting to read/know about 3D printing.

Thanks Emad for asking.

3D printing

https://en.wikipedia.org/wiki/3D_printing

3D Printing: Make anything you want

https://www.youtube.com/watch?v=G0EJmBoLq-g

3D Printing Future Technologies

http://explainingthefuture.com/3dprinting.html

Mcor

http://mcortechnologies.com/

I think following link will be helpful.

http://3dprinting.com/what-is-3d-printing/

regards

ijaz

Thank you so much Ijaz.

I am not of that subject / techinque but have interest upto news media.

Thanks

ijaz 

One of the biggest advantages that 3D printing over traditional manufacturing is that the 3D printing process generally doesn’t require any special new tooling to make a part. When making a prototype, this can save a lot of time, money, and effort that would normally be spent on tooling the production line and getting an assembly process set up.

Another key advantage of using 3D printing over many traditional production processes is that it is incredibly resource-efficient. With a 3D printer, the only material that is consumed is what passes through the extruder of the printer, which is used for the actual assembly of the product.

https://www.marlinwire.com/blog/3d-printing-vs-traditional-manufacturing

Thank you so much Behrouz

What are the main features of 3D printing techniques?

You can also refer to the following RG links:

https://www.researchgate.net/post/3D_Printing_vs_Traditional_Manufacturing

https://www.researchgate.net/post/What_are_the_Use_Cases_or_Applications_of_3D_Printing_of_Smart_Devices

Thank you so much Fung

Very interesting to read/know about 3D printing.

Thanks Emad for asking.

3D printing

https://en.wikipedia.org/wiki/3D_printing

3D Printing: Make anything you want

https://www.youtube.com/watch?v=G0EJmBoLq-g

3D Printing Future Technologies

http://explainingthefuture.com/3dprinting.html

Mcor

http://mcortechnologies.com/

Thank you so much Ramadevi, I just like to extend my question to the following statement: what about the residual stresses in such components manufactured by 3D printing method? Are they the same as in traditional manufacturing manner?

Regards, Emad

Methods of Measuring Residual Stresses in Components

http://doras.dcu.ie/17607/1/Review_of_residual_stresses-Final.pdf

Residual Stress in Metal Parts Produced by Powder-Bed Additive Manufacturing Processes

http://sffsymposium.engr.utexas.edu/sites/default/files/2015/2015-117-Wang.pdf

Researchers develop efficient method to measure residual stress in 3D printed parts

https://www.llnl.gov/news/researchers-develop-efficient-method-measure-residual-stress-3d-printed-parts-0

Metal additive-manufacturing process and residual stress modeling

http://link.springer.com/article/10.1186/s40192-016-0047-2

Accuracy in Additive Manufacturing

http://machinedesign.com/3d-printing/accuracy-additive-manufacturing

3D Printing: A Challenge to Nuclear Export Controls

http://local.droit.ulg.ac.be/jcms/service/49/pdf/str01/2_3D_Printing_A_Challenge_to_Nuclear_Export_Controls.pdf

Layers of Complexity:Making the Promises Possible for Additive Manufacturing of Metals

https://camal.ncsu.edu/wp-content/uploads/2014/10/Additive-article-in-Journal-of-Minerals-Metals-and-materials.pdf

Australian Engineers Successfully Developed 3D-Printed Jet Engines

http://www.dailytech.com/Australian+Engineers+Successfully+Developed+3DPrinted+Jet+Engines/article37206.htm

Thanks again Ramadevi

https://www.llnl.gov/news/researchers-develop-efficient-method-measure-residual-stress-3d-printed-parts-0

May be you can look

Data 3D Printing Landscape and Technology

Please have a look at following links:

3D Printing: No Longer Just an Idea

http://www.huffingtonpost.com/jackson-mariotti/3d-printing-no-longer-jus_b_4400731.html

Exploring the Next Revolution of 3D Printing in Industrial Manufacturing

https://3dprintingindustry.com/news/exploring-next-revolution-3d-printing-industrial-manufacturing-90232/

3D Printing: Innovation's New Lifeblood

http://www.technewsworld.com/story/83035.html

http://www.technewsworld.com/story/83035.html

https://3dprintingindustry.com/news/exploring-next-revolution-3d-printing-industrial-manufacturing-90232/

Dear Krishnan Umachandran, Dear Behrouz Ahmadi-Nedushan, Dear Harshvardhan Singh, Thank you so much for your kind replies.

Regards, Emad

The concrete should be made flowable to reach the robotic arm and at the same time it should set after casting. so the concrete should have dual nature to get printed

The idea and application of this method are amazing. Whether you are a mechanical engineer, who needs to verify if the part can fit to your design, or creative person who wants to make a plastic prototype of new coming project, Stereolithography can help you to turn your models into a real 3D printed object.

This method was patented by Charles Hull, co-founder of 3D Systems, Inc in 1986. The process of printing involves a uniquely designed 3D printing machine called a stereolithograph apparatus (SLA), which converts liquid plastic into solid 3D objects.

Most printing techniques require computer aid design (CAD) file to process the object. This file contains information about dimensional representation of an object. CAD file must be converted into a format that a printing machine can understand. There is Standard Tessellation Language (STL) format that is commonly used for stereolithography, as well as for other additive manufacturing processes. The whole process consists of consequent printing of layer by layer hence STL file that printing machine uses should have the information for each layer.

http://3dprintingfromscratch.com/common/types-of-3d-printers-or-3d-printing-technologies-overview/

Dear Mahfuz Judeh 

Thank you so much for your kind reply.

Regards, Emad

From our point of view (industrial manufacturing of small, personalized medical products) velocity, precision and the availability of a broad range of biocompatible materials (different hardness, flexibility, colors, transparency...) are most important. So we prefer stereolithography / DLP-technique. I am aware that other industries and especially academia have other requirements. Price surely is very important for all - single persons or industry - who want to buy a Printer. And the resin price should be taken into consideracion.