All About The Selective Layer Sintering Process

Selective Laser Sintering is your Additive Manufacturing procedure where 3-dimensional objects are”grown” layer by layer from fused particles of ceramic, glass, metal or plastic.  Employing an STL file of this part a high power laser draws a cross-section of the item.  As the powder is hit by the laser it unifies to create a mass representing a single section of this part.  After this cross-section is finished the construct platform reduces by 0.1mm and a fresh layer of powder is dispersed across the construct platform.  The procedure repeats until the last thing is”increased” layer by layer.  As un-sintered or lose substance can be brushed out to leave the model minimal cleanup is needed.

Direct metal laser sintering, or DMLS, is a production process where metal powder is sintered into layers utilizing lasers.  These layers are sintered together till the desired depth is reached by them.  They need service structures, which are manufactured from metal’s incorporation.  After sintering is complete these support structures could be eliminated.  The prototype will require some extra work in order such as shot peening, heat treatment, and procedures.  The result is a durable prototype that can allow you to work out whether your new design will operate.

It’s possible to use DMLS to make prototypes from several metals.  It’s possible to create parts from ceramic, stainless steel, Inconel, Hastalloy, as well as chrome.  Laser sintering employs powdered metal in layers, and technology is continuing to proceed on those inventions.  You will have the ability to use this technology on kinds of alloys and alloys you can get your prototypes which you need for efficacy and maximum durability.  Your prototypes will be so great that you may have the ability to use them.

DMLS took some time to be developed, however, that it is, it’s moving forward quickly with various metals and additional innovations in the area.  There are certain to be improvements to the technology of laser sintering, and the production world can look forward to much prototyping technologies later on when this procedure is any sign.  The simpler it is to make a prototype you’ll need to perfect whatever it’s you wish to enhance or product or your part.  The tide of the future is currently continuing to forge.

The Demand For Prototyping

By allowing the design division, manufacturing/production engineering and marketing departments view that the version for an early phase allows expensive mistakes to be removed.  tooling was created for a generation that was complete whilst the versions at this point are comparatively inexpensive, any errors can be rectified.

The term Rapid is comparative as some versions can take just a couple of hours to construct whereas others might take several days.  It is determined by sophistication, the size and the technique used.

The standard document format that’s used between the CAD software, as well as the rapid prototyping machines, would be your STL file format.  Although for color models like the ones that the VRML format is used because there’s not any color information in the STL file format.  using triangular aspects, both formats make an approximation of the form of a part or assembly.  The bigger the triangles the smoother the surface is a stage where there will be no progress due to the constraints of this technology.  To be able to realize your version will be seen by the prototype machines you want to turn off shading from the 3D CAD program.

There are several techniques that may be utilized to deposit the content and which is ideal for your job will be dependent on what you need from your own models.  They are:

Stereolithography (SLA)

Selective Laser Sintering (SLS)

3D Printing (3DP)

Fused Deposition modeling (FDM)

All these techniques take another substance that’s called the service material, which permits tapered surfaces and overhangs to be generated since the part is’increased’.  These come in many different forms which could be liquid powder, wax.  Whereas machines that you need to create the support substance, some machines create the support arrangement for you so you don’t have any control over where it belongs.

A number of additional Benefits to Quick manufacture are:

Low substance waste


Complex Geometries

Energy Efficiency

Quick Manufacturing is widely regarded by specialists as the next phase for Rapid Prototyping technology.

Programs Of Rapid Prototyping

To reduce product development time (time compression technology)

To Boost engineering changes

To Improve successful communication between engineers, product designers, and marketing departments

To prolong the product life cycle

The SLS Procedure 

Quick Prototyping has been utilized as an instrument to create early concept models.  Employed as visual design aides and marketing instruments, model models were restricted to the first phases of the design process because of the nature of substances.  Continuing development and research has resulted in significant improvements in the assortment of substances available with prototype versions testing that was acceptable for form, fit and function.  Taking performance the Selective Laser Sintering printing process has proven widely used.

The Procedure 

Laser sintering is the wave of the future If it comes to prototypes.  Using lasers has turned out to be helpful in an assortment of applications, from laser eye surgery to laser scans to laser light displays.  Lasers prove their efficacy they may be utilized to enhance technology.  Easily, you can make prototypes of alloy components through the procedure of DMLS.  This technology may create made of several kinds of metals and is very simple to use.  No matter the part you require, you can make it using laser technology.

With nominal cleanup and turnover intervals of less than 24 hours provided on the SLS Formiga P100 machine, Selective Laser Sintering integrates flawlessly into the manufacturing environment.


The selection of materials available through Selective Laser Sintering continues to grow as development and research into Rapid Prototyping technology proceeds, however, a few of the very popular SLS materials comprise.

– PA 2200 – a nylon-based material that provides high-temperature resistance and outstanding durability, PA 2200 is acceptable for producing living hinges and snap matches.

– PA 3200 GF – the blend of Nylon and Glass in PA3200 GF creates extremely large temperature resistant parts with higher durability and mechanical wear resistance.

– Alumide – Inspired by its high durability, metallic look, and decent post-processing possessions, aluminide is an aluminum filled material.

– PrimePart FR – a flame retardant material offering great dimensional stability.

– PEEK – the world’s first large performance polymer with elevated temperatures, chemical and wear resistance.

– PrimeCast – polystyrene established PrimeCast presents exceptional surface finish and reduced ash residue, offering a perfect solution for the production of lost routines for investment castings.

The brief manufacturing lead times alongside the assortment of demanding functional SLS materials readily available assistance to explain the rising prevalence of Selective Laser Sintering for its creation of a single off or very low volume parts. Learn more about the process right here.