Selective Laser Sintering Process

Selective Laser Sintering Process used to create accurate scale model of Chambord ChateauSelective Laser Sintering Process

 

First developed and patented in the mid 1980′s the Selective Laser Sintering process involves the creation by additive layer technology of physical models using a carbon dioxide laser on a bed of powdered material.

“I would like to thank you and your colleagues for all your help this year…The LS large intake manifold you made for us, greatly helped with our engine development programme.”
                                                                                                                                         University of Ulster

The Selective Laser Sintering process has become a popular tool for product designers and engineers, thanks to the processes ability to rapidly convert complex CAD geometries into physical working models. With LS capable of producing parts from commercially available materials such as Nylon there has also been significant growth in the number of companies turning to Selective Laser Sintering to meet limited run manufacturing requirements.

 

Unsure if the Selective Laser Sintering process  right for your project? View the process comparison table.

 

Selective Laser Sintering Process

  •  Selective Laser Sintering Process - Machine Cross SectionThe Selective Laser Sintering process begins with the conversion of customer generated 3D CAD data into a sliced STL file using proprietary software. Once created the STL file is then sent to print on the Selective Laser Sintering machine.

 

  • The machine warms up (with LS material heated to just below melting point) prior to the feed bed rises (typically by <0.1mm) and the levelling roller pushes fresh powder across the build platform/part bed.

 

  • The first layer is then traced out by a CO2 laser which melts and fuses the LS material upon contact. Once the first layer has completed the build platform/part bed drops by a pre-set amount.

 

  • The feeder bed rises and a fresh layer of powder is swept along the build platform. The next layer is then traced out and the process repeats layer by layer until the model has “fully grown”.

 

  • Upon completion the model is left to cool before being removed and any loose material brushed away (as the Selective Laser Sintering process requires no support structures)

 

Video Overview