Properties of Jet electrodeposition Nickel Coating on TC4 Alloy Prepared by Selective Laser Melting

Wang, Xiao; Astronautics, Yu Dao Street

doi:10.20964/2019.08.01

Cited by 6 publications

(5 citation statements)

References 23 publications

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“…Comparing several different heat treatment processes, research shows that the strength and hardness of SLM formed TC4 alloy samples have been improved to a certain extent after heat treatment. After 8008C/2h annealing treatment, the TC4 alloy sample has the lowest residual stress value of 43 MPa, which best matches the strong plasticity properties (Huang, 2018). Ti17 titanium alloy not only has the characteristics of α þ β type alloy, but is also a transition type alloy rich in β stabilizing elements.…”

Section: Surface Integrity Of Metal Additive Parts 21 Surface Integri...mentioning

confidence: 56%

Subtractive processing and surface integrity of additive manufacturing materials

Liu,

Xu,

Shen

et al. 2024

JIMSE

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PurposeAs an advanced manufacturing method, additive manufacturing (AM) technology provides new possibilities for efficient production and design of parts. However, with the continuous expansion of the application of AM materials, subtractive processing has become one of the necessary steps to improve the accuracy and performance of parts. In this paper, the processing process of AM materials is discussed in depth, and the surface integrity problem caused by it is discussed.Design/methodology/approachFirstly, we listed and analyzed the characterization parameters of metal surface integrity and its influence on the performance of parts and then introduced the application of integrated processing of metal adding and subtracting materials and the influence of different processing forms on the surface integrity of parts. The surface of the trial-cut material is detected and analyzed, and the surface of the integrated processing of adding and subtracting materials is compared with that of the pure processing of reducing materials, so that the corresponding conclusions are obtained.FindingsIn this process, we also found some surface integrity problems, such as knife marks, residual stress and thermal effects. These problems may have a potential negative impact on the performance of the final parts. In processing, we can try to use other integrated processing technologies of adding and subtracting materials, try to combine various integrated processing technologies of adding and subtracting materials, or consider exploring more efficient AM technology to improve processing efficiency. We can also consider adopting production process optimization measures to reduce the processing cost of adding and subtracting materials.Originality/valueWith the gradual improvement of the requirements for the surface quality of parts in the production process and the in-depth implementation of sustainable manufacturing, the demand for integrated processing of metal addition and subtraction materials is likely to continue to grow in the future. By deeply understanding and studying the problems of material reduction and surface integrity of AM materials, we can better meet the challenges in the manufacturing process and improve the quality and performance of parts. This research is very important for promoting the development of manufacturing technology and achieving success in practical application.

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Section: Surface Integrity Of Metal Additive Parts 21 Surface Integri...mentioning

confidence: 56%

Subtractive processing and surface integrity of additive manufacturing materials

Liu,

Xu,

Shen

et al. 2024

JIMSE

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show abstract

“…This is due to the characteristic “tip discharge” effect of jet electrodeposition that will make the nickel ions tend to reduce to atoms at the peak where the discharge is easier, resulting in a thicker coating at the peak and thinner coating at the trough. 21 The uneven thickness of the coating is very harmful to the coating structure and adhesion when the internal stress is released, and leads to the easy generation of micro-cracks and can even lead to the rupture of the coating. Figure 8 shows a schematic illustration of the sand blasting and surface coating processing.…”

Section: Resultsmentioning

confidence: 99%

High-performance nickel coating on SLM 316L stainless steel processed by jet electrochemical machining and jet electrodeposition

Cheng¹,

Xu²,

Zhao³

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part B:

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Selective laser melting (SLM) is an important method in additive manufacturing. SLM has obvious advantages for the fabrication of metal parts with complex structure that cannot be processed directly and are manufactured in relatively low amounts. However, the surfaces of the SLM-formed parts contain more adhesive particles and pores than those manufactured by traditional methods, leading to the poor corrosion resistance of the parts and preventing the widespread use of SLM. To solve these problems, jet electrochemical machining and jet electrodeposition combined processing techniques were investigated for the treatment of the substrate surface in this work. Jet electrochemical machining was used to remove the surface defects of the SLM-formed parts, and the results were compared with the traditional sandblasting and sandpaper grinding surface treatment methods. Then, the nickel coating was deposited on the surface of the SLM-formed parts using jet electrodeposition to protect the surface and extend the service life of the parts. The mechanisms of the different processing techniques were analyzed, and properties such as the substrate morphology, coating morphology, corrosion resistance of the coating, and adhesion of the coating were compared. The results show that holes, adhesive particles and other defects are still present on the substrate surface after sandpaper grinding and sandblasting and affect the quality of the nickel coating. After electrochemical machining, the SLM surface defects were almost completely removed, forming a uniform microporous structure that interlocked with the nickel coating. The coating was smooth and dense and showed the best corrosion resistance and binding force. In 3.5 wt% NaCl solution, the corrosion potential reached −0.196 V, and the maximum binding force reached 35 N.

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“…Jet electrodeposition has several advantages such as low processing costs, high deposition current density, high selectivity, high velocity, high efficiency and ability to plate thick composite coatings with fine grains [4][5][6], which can be used to prepare excellent properties with composite coating and enhance the local surface of metallic parts. Shen et al [7] found that the multilayered structure nickel coating using jet electrodeposition can further improve corrosion resistance and better protect the NdFeB material.…”

Section: Introductionmentioning

confidence: 99%

Wettability, Microhardness, Wear and Corrosion Resistance of Ni–Co–P–BN(h)–Al2O3 Binary Nanocomposite Coatings Surface with Varying Long-Pulse Laser Parameters

et al. 2021

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In this study, Ni–Co–P–BN(h)–Al2O3 binary nanocomposite coatings were fabricated on steel C1045 substrates by jet electrodeposition. The samples were then processed using self-made laser processing equipment to investigate the influence of long-pulse laser processing parameters variation on samples’ surface morphology, roughness and wettability. Additionally, the properties of samples before and after laser processing were analyzed and characterized. The results showed that the surface morphologies, surface roughness and wettability of samples were affected by laser output power, pulse width and spot-to-spot distance variation. A convex dome was formed on the samples’ surface at a low laser output power and a suitable pulse width, while a dimple was formed on the samples’ surface at a high laser output power. The surface roughness and water contact angle of samples increased with the rise in laser output power or pulse width. The water contact angle decreased with the rise in the spot-to-spot distance, and the water contact angle reached a maximum value of 139.8° with a laser output power of 50 W, a pulse width of 100 µs and a spot-to-spot distance of 150 µm. The samples after laser processing exhibited a higher wettability, microhardness and wear resistance compared to those of the normal samples. The microhardness of the heat-affected zone reached a maximum value of 812.1 HV0.1, and the wear scar width of the samples reached a minimum value of 360.5 µm. However, after laser processing, the samples’ seawater corrosion resistance decreased slightly.

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Properties of Jet electrodeposition Nickel Coating on TC4 Alloy Prepared by Selective Laser Melting

Cited by 6 publications

References 23 publications

Subtractive processing and surface integrity of additive manufacturing materials

Subtractive processing and surface integrity of additive manufacturing materials

High-performance nickel coating on SLM 316L stainless steel processed by jet electrochemical machining and jet electrodeposition

Wettability, Microhardness, Wear and Corrosion Resistance of Ni–Co–P–BN(h)–Al2O3 Binary Nanocomposite Coatings Surface with Varying Long-Pulse Laser Parameters

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