Laser strip cladding for large area metal deposition

Tuominen, Jari; Kaubisch, Marc; Thieme, Sebastian; Näkki, Jonne; Nowotny, Steffen; Vuoristo, Petri

doi:10.1016/j.addma.2019.01.008

Cited by 13 publications

(5 citation statements)

References 17 publications

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“…In the actual processing process, the laser beam would converge with the powder flow at each processing point according to the planned path; therefore, under the simulation of a moving heat source, the heat effect data could be obtained to improve the convergence point and the radius of the powder flow. It would also make it more efficient with the laser beam cladding to better cooperate with each other [52][53][54][55][56].…”

Section: Simulation Analysis and Stress Analysis Of Hot Cladding Processmentioning

confidence: 99%

Design a New Type of Laser Cladding Nozzle and Thermal Fluid Solid Multi-Field Simulation Analysis

et al. 2021

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Coaxial powder feeding technology in the field of metal additive manufacturing is booming. In this paper, a new laser cladding nozzle with powder feeding channels of inner and outer rings is designed. The nozzle works with a new kind of laser, which is a new heat source with an inner beam and outer beams. The water-cooling channels are simulated in Ansys Workbench. The simulation results present the temperature distribution of the working nozzle and the velocity of the cooling water. The thermal dilation of the nozzle in the working environment is also simulated. The results show that the loop water cooling channel could effectively reduce the high temperature of the nozzle down to about 200 °C. In addition, it could well restrain the thermal deformation of the nozzle lower to 0.35 mm. The equivalent stress of most parts is controlled under 360 MPa. Then, the powder flows of the inner and outer rings of the multiple powder feeding channels are simulated in Ansys Fluent. The convergence effect of the powder flow could be assumed and some significant parameters, such as the velocity, are acquired. The results present that these multiple powder feeding channels could realize the generation and removal of removable supports of workpieces with highly complex shapes and achieve a large processing range and good processing efficiency. The velocity of the powder flow at the outlet is elevated to about 5 mm/s. Then, the thermal cladding states under the new laser heat source of the powder are simulated in Workbench. The temperature of the melting process and the thermal deformation and the equivalent stress/strain of the additive parts are obtained in the emulation. The results emerge that the powder melting range and the ascending temperature of the melting pool are improved with this effect. The greatest temperature of the melting pool is about 2900 °C in the machining process, and the maximum thermal equivalent stress is 1.1407 × 1010 Pa.

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Section: Simulation Analysis and Stress Analysis Of Hot Cladding Processmentioning

confidence: 99%

Design a New Type of Laser Cladding Nozzle and Thermal Fluid Solid Multi-Field Simulation Analysis

et al. 2021

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“…Its basic characteristic is the gradual layering of the applied material into the shape of the final product. In this way, it is currently possible to produce components from plastics, metal, and ceramic materials [1][2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Use of Laser Metal Deposition Technology in Additive Manufacturing of Ni Powder Materials

Sejč

Jaroš

Vanko

2022

Strojnícky Časopis - Journal of Mechanical Engineering

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The process parameters of the Laser Metal Deposition technology in the production of simple components made of NiCuBSi type metal powder were verified in this paper. A laser head with a coaxial powder supply and argon gas was used in the production. The powder was welded to a S235J2G3 steel plate. The used parameters (heat input 0.25 kJ.mm−1) enabled the production of samples with a minimum porosity (1.2 %) and without the defects (cold joints, pores) between the weld layers.

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“…Weld cladding is defined by Silva [11] as the deposition of one or more layers of a corrosionresistant alloy (CRA) on a base metal to improve a desirable property, such as corrosion-resistant that is not inherent to the base metal. These coatings can be deposited by various manufacturing processes such as shielded metal arc welding (SMAW) 12, 13, gas tungsten arc welding (GTAW) [14][15][16][17], gas metal arc welding (GMAW) [18][19][20][21], plasma transferred arc welding (PTA) [22][23][24], electro slag welding (ESW) [25][26][27][28], laser cladding [29][30][31][32], or microwave cladding [33].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of solidification cracking of Ni-based alloy dissimilar welds based on Trans-Varestraint test

et al. 2021

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This study aims to evaluate the weldability of dissimilar welds with the Inconel 625 and the Hastelloy C-276 nickel-based alloys deposited on ASTM A36 and AISI 1045 carbon steel plates. The welds were carried out by the GMAW process and evaluated by the Trans-Varestraint test. The test results were statistically evaluated, and Fusion Zone solidification processes were simulated in JMatPro software using several dilution levels. The analysis of variance (ANOVA) test results showed that the two different base metals did not affect the weldability of Inconel 625. However, the Hastelloy C-276 alloy showed a significant drop in weldability with the AISI 1045 steel compared to the ASTM A36. The results of the Hastelloy C-276 as the filler metal and the AISI 1045 steel as the base metal showed greater susceptibility to solidification cracking than all the other pairs tested, according to the Trans-Varestraint test. Moreover, the ANOVA test results indicated that the different heat input levels did not influence the sets' weldability; this was probably because there was only a tiny variation in the dilution levels. The solidification process simulation indicates that higher dilution levels promote the precipitation of a larger secondary phase fraction.

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Laser strip cladding for large area metal deposition

Cited by 13 publications

References 17 publications

Design a New Type of Laser Cladding Nozzle and Thermal Fluid Solid Multi-Field Simulation Analysis

Design a New Type of Laser Cladding Nozzle and Thermal Fluid Solid Multi-Field Simulation Analysis

Use of Laser Metal Deposition Technology in Additive Manufacturing of Ni Powder Materials

Evaluation of solidification cracking of Ni-based alloy dissimilar welds based on Trans-Varestraint test

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