...Francois Du Rand; André Francois van der Merwe; Malan van Tonder Purpose This paper aims to discuss the development of a defect classification system that can be used to detect and classify powder bed surface defects from captured layer images without the need for specialised computational...

... manufactured by the MPBF process exhibits poor dimensional accuracy, poor surface finish, macroscopic/microscopic defects and an undesirable microstructure that inversely affects the mechanical properties of the produced parts (Thompson et al., 2019). Therefore, a momentous effort is required...

...Abid Ullah; Asif Ur Rehman; Metin Uymaz Salamci; Fatih Pıtır; Tingting Liu Purpose This paper aims to reduce part defects and improve ceramic additive manufacturing (AM). Selective laser melting (SLM) experiments were carried out to explore the effect of laser power and scanning speed...

...Xiaoyu Zhang; Dichen Li; Jiale Geng Purpose Laser cladding deposition is limited in industrial application by the micro-defects and residual tensile stress for the thermal forming process, leading to lower fatigue strength compared with that of the forging. The purpose of this paper is to develop...

...Abid Ullah; HengAn Wu; Asif Ur Rehman; YinBo Zhu; Tingting Liu; Kai Zhang Purpose The purpose of this paper is to eliminate Part defects and enrich additive manufacturing of ceramics. Laser powder bed fusion (L-PBF) experiments were carried to investigate the effects of laser parameters...

...Ruidong Xie; Dichen Li; Bin Cui; Lianzhong Zhang; Feng Gao Purpose Laser metal deposition (LMD) is an important additive manufacturing (AM) technology, but the metallurgical defects, such as cracks and porosities, produced in LMD process will seriously affect the mechanical properties of the parts...