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that scanned in x-direction in one layer and then turned 90° in next layer was used. After a series of pre-experiments, cubic parts (8 mm×8 mm×8 mm) were built under optimized parameters as follows: laser power... J. Cent. South Univ. (2021) 28: 1170-1182 DOI: https://doi.org/10.1007/s11771-021-4688-8 Fe-Zn supersaturated solid solution prepared by mechanical alloying and laser sintering to accelerate......
using 2 kW CW Nd:YAG laser. The effects of laser power (750-1 250 W), scanning speed (1 000- 3 000 mm/min) and focal point position (from -10 to -30 mm) on the heat input, and hardened-bead... are laser power (LP, Pl), scanning speed (SS, vs) and focused position (FP, lf). Sheets of titanium alloys Ti 64 and Ti 6242 are Ti-6AI-4V and Ti-6AI-2Sn4Zr2Mo which are used particularly in space......
on the overlap ratio of single track, and further affects the internal forming quality of printed specimen. At a laser power of 160 W and scanning speed of 400 mm/s, the densification of block specimen... process control aspect, many scholars have done the related research works on the process parameter optimization of SLM processed Al alloys. RAO et al [22] investigated the influence of laser power......
mass ratio of 20∶80 was successfully fabricated by selective laser sintering(SLS) process. The following optimal processing parameters were used: laser power of 700 W, scan speed of 0.06 m/s, scan... processing parameters were used: spot size of 0.30 mm, laser power of 700 W, scan speed of 0.06 m/s, and scan line spacing of 0.15 mm. The entire laser processing was performed at room temperature without......
quality. Additionally, the design and analysis of lens surface deformation error in high power laser diode (HPLD) have been studied in many literatures. For example, MALACARNE et al [14] and LIU et al..., the better the beam quality is. For the single emitter laser diode beam shaping system model, the power of the laser source is 8 W, and the divergence angles in fast and slow axes are 7° and 27......
composition of AISI 52100 samples 2.2 Micro texturing Micro-dimples of the ellipsoidal and circular pattern were made using Nd: YAG laser having a wavelength of 1064 nm. The power source was used which offered 20 W power and scanning speeds which can be kept between 1 mm/s to 10 m/s. The laser beam spot diameter was 7 μm, and the pulse frequency was 15 kHz. The texture density for the ellipsoidal pattern......
2(a), the SLM system parameters were as follows: the laser power was 0-500 W, the layer thickness was 0.02-0.1 mm (the default value was 0.03 mm), the default laser hatch spacing was 0.12 mm... applied per unit volume of the specimen), which was used to represent the energy input by the following equation [39]: (1) where P is the laser power; v is the laser scanning velocity; h......
the remelting effect of a high-power laser to create a jagged surface between the steel layer and ceramic layer, which significantly improved the bonding between steel and ceramic. WEI et al [25... parameters for the CuSn10 region. During the SLM fabrication of 316L/CuSn10 bimetallic structure, CHEN et al [28] built the CuSn10 part without pores using the laser parameter with a power of 300 W......
. Considerable experiments show that under Ar atmosphere with the laser power of 190-220 W, the scanning rate of 10-1000 mm/s and the beam diameter of 4 mm, the crackless samples with smooth surface and high... scanning rate. So, the best mechanical properties can be obtained by selecting the optimal laser power density and scanning rate. Moreover, the fracture toughness at high temperatures may be higher......
throughout the Al2O3 grain boundary and were buckled. Fig.2 shows the surface SEM micrographs for Al2O3, 2% and 8% CNT nanocomposites. The laser power used for the experiments are 910, 34, 7, 1.6 and 0.38 mW... using a low-power UV laser in the manufacturing of a microfluidics chip [J]. J Micromech Microeng, 2005, 15: 1147-1156. [7] ZHENG H Y, LEE T. Studies of CO2 laser peeling of glass substrates [J]. J......
