Selective laser melting

The selective laser melting is where the component is fabricated with the layer by layer technique through the top surface of a powder bed. It has a higher intensity of the laser which is sliced with 3D Computer Aided Design (CAD Data). The major influence of the SLM parameters like the laser power, scanning speeding and the hatching distance is on the density of AlSi10Mg samples which are for the investigation through one factor at a time (Robbins et al., 2016).

Laser Power

The laser power is for emitting the light through the process set for the optical amplification. This is based on the stimulation process of the electromagnetic process. The terms are related to the light amplification with the stimulation of the emission of radiation.

Laser scan speed

For the 3D objects, it is important that the scanning speed is controlled by the steering of the beams with the laser range finder. This is set for the measurement of distance at different distance where the scanner also captures the object shape.

Hatch distance

The hack distance is the band which has been defined by the scanning of vector width with the hatching space that is found to be adjacent to the tracks and then scanning the directions with overlapping mainly with the other stripes which are in neighbour.

Scan pattern

The scan pattern is integrated with the laser scan designs for the treatment through the beam or the particular pattern array upto the range of 25 points.

Additive manufacturing

The additive manufacturing is important for the technologies that are mainly to build the 3Dtechnologies objects by adding the layer upon the other layer of material. This is to analyse about the use of the computer, 3D modelling software with the machine equipment that are set for the CAD sketch (Panesar et al., 2017). The AM works over the technologies that include the rapid prototyping and the layered manufacturing techniques where the focus is on pre-production visualisation models. This is set to define the end-use products in aircraft, with dental restorations and the medical implantation. The addition of the layer upon layer approach is simple with the visualisation tool in designing and creating a high customised product for the consumers and professionals. The industrial tooling with the multi-structure concrete to machines could build and work over the contour crafting which support the structures for the people to live and work in (Bhushan et al., 2017). Here, AM is also for the subtractive manufacturing where there is a complete removal of the material like the drilling out of the materials and setting the access to create and customise the different repairing products. The process is to redefine the current production technology with proper description of adding the layer upon the other layer. Some of the examples of the AM are the SLA which is a high-end technology using the laser technology where the polymer changes the properties when they are exposed to light. The building occurs in the pool of resin where the laser beam is traced with the cross-sectional platforms.

References

Bhushan, B. and Caspers, M., 2017. An overview of additive manufacturing (3D printing) for microfabrication. Microsystem Technologies, 23(4), pp.1117-1124.

Panesar, A., Ashcroft, I., Brackett, D., Wildman, R. and Hague, R., 2017. Design framework for multifunctional additive manufacturing: coupled optimization strategy for structures with embedded functional systems. Additive Manufacturing.

Robbins, J., Owen, S.J., Clark, B.W. and Voth, T.E., 2016. An efficient and scalable approach for generating topologically optimized cellular structures for additive manufacturing. Additive Manufacturing, 12, pp.296-304.