Ho-Chan Kim

TL;DR: In this paper, the surface roughness of layered manufacturing (LM) processes is predicted in advance, and a roughness distribution expression for all surface angles is introduced using measured roughness data and interpolation.

TL;DR: In this paper, the authors discuss mutual benefits from both 3D printed smart devices and 4D printed features, which can be built in a single body, and it is expected that the combination of 3D-printing smart devices with 4D printing would contribute to the development of high performance, adaptability to the environment and programmable 3D smart devices, which have not yet existed.

TL;DR: In this article, an intelligent methodology to determine the optimal fabrication direction is proposed to minimize the required post-machining region (RPMR) in the LM, an expression of the distribution of surface roughness is presented and the relation between the RPMR and fabrication direction are investigated taking real LM environments into consideration.

TL;DR: In this article, a fused deposition modeling for metals (FDMm) system was used for the extrusion and deposition of low melting temperature metal alloys to create three-dimensional metal structures and single-layer contacts.

TL;DR: The surface of stereolithography parts become rough due to the stair-stepping effect and burrs from the support structure, and basic approaches to minimizing post-processing are investigated.