Fabricating the Steam Turbine Blade by Direct Laser Forming

Zhang, Lu; Zhang, A. F.; Tong, Zhiqiang; Yang, Xinghua; Li, D. C.; Lu, Bingheng

doi:10.1080/10426914.2011.560225

Cited by 35 publications

(5 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various manufacturing processes such as plasma melt injection [6], friction surfacing [7], powder metallurgy [8], and spray deposition technique [9] have been employed in the past for the production of MMCs. However, because of the rapid cooling and solidification with a good optimization of parameters in laser processing, functionally graded components can be produced easily [10]. Also, laser cladding can be exploited to improve part=assem-assembly designs, ameliorating problems associated with joining of MMCs discussed in [11].…”

Section: Introductionmentioning

confidence: 99%

Laser Deposition of Ti-6Al-4V Wire with WC Powder for Functionally Graded Components

Farayibi

Folkes

Clare

2013

Materials and Manufacturing Processes

View full text Add to dashboard Cite

In this study, metal matrix ceramic (MMC) functionally graded components are fabricated using a method based upon shape metal deposition. Laser deposition provides a suitable means for metallic coating and surface alloying for many applications. New functionally graded components can be built with surface and bulk properties locally modified. Tailoring to meet location specific demands such as modified tribological, corrosion, and thermal properties is achievable. This article investigates the cladding of Ti-6Al-4V wire and WC powder concurrently fed into the laser generated melt pool on a Ti-6Al-4V substrate. The addition of WC particles promotes its hardness and improves wear resistance. Results obtained showed the micrograph of the functionally graded area coating of Ti-6Al-4V/WC matrix in which WC particles are dissolved resulting in TiC/W two phase nodules. Scanning electron microscope (SEM), energy dispersive X-ray (EDX), X-ray diffraction (XRD), and microhardness characterization is presented for the coating. Fiber laser deposition is demonstrated as a means to produce titanium matrix ceramic composite structures with a demonstrator part is presented. INTRODUCTIONTitanium alloys have found use in petrochemical, chemical, oil and gas, and ground transport industries [1]. This is due to superior high strength to weight, toughness, ductility, fatigue, and corrosion resistance. Ti and its alloys offer about 40% weight saving when used in place of steel [2]. However, Ti alloy has poor tribological characteristics due to high friction coefficients and low hardness [3], which limits its use for applications where sliding or abrasive wear is prevalent. Having reinforcing elements or ceramics in the Ti alloy (forming Ti MMC) could ameliorate the wear shortcomings and also enhances its strength for high temperature applications.Laser cladding is a suitable and cost-effective manufacturing technique which allows deposition of materials which may improve wear, corrosion, and thermal properties. In this process, a laser generated melt pool is steadily fed with the desired materials to form a clad [4]. Repeated clad multipass gives an area coating. Controlled repetition of this process allows the fabrication of 3-dimensional (3D) structures [4] which is the main driver of this work.Metal matrix composites (MMCs) are desirable for various applications which may include wear surfaces, thermal management, and structural stiffness [5]. Various manufacturing processes such as plasma melt injection [6], friction surfacing [7], powder metallurgy [8], and spray deposition technique [9] have been employed in

show abstract

Section: Introductionmentioning

confidence: 99%

Laser Deposition of Ti-6Al-4V Wire with WC Powder for Functionally Graded Components

Farayibi

Folkes

Clare

2013

Materials and Manufacturing Processes

View full text Add to dashboard Cite

show abstract

“…Laser additive manufacturing (LAM) has attract much attention as a promising technology for producing titanium alloy parts using layer-by-layer manufacturing method [6][7][8][9]. LAM has been commonly used for fabricating or repairing large complex components including steam turbine blade, turbo-engine blade and turbo-engine case [10][11][12]. Surface roughness of LAM is usually higher than 10μm due to waviness of the scan tracks and layered structure [13][14].…”

Section: Introductionmentioning

confidence: 99%

Laser polishing of additive manufactured Ti alloys

Guan

Zhou

2017

Optics and Lasers in Engineering

236

View full text Add to dashboard Cite

“…The results validate the use of these technologies for wax injection and investment casting processes. Lu et al [8] investigated the manufacturing of steam turbine bladesusing laser forming and the effect of different process parameters on the resulting part. Similarly, Vaezi et al [9] used both reverse engineering (RE) and rm techniques to investigate the process suitability for the manufacturing of blade.…”

Section: Please Scroll Down For Articlementioning

confidence: 99%

Turbine Blade Manufacturing Through Rapid Tooling (RT) Process and Its Quality Inspection

Iftikhar

Khan

Alam

et al. 2013

Materials and Manufacturing Processes

View full text Add to dashboard Cite

Rapid prototyping (RP) technologies have played vital role in product development and validation. Another aspect of RP is rapid tooling (RT). The development and manufacturing of conventional tools (die and molds) take considerable amount of time. RP technologies could be used to shorten the development time of these tools for shorten the time to production. This investigation focuses on the development of turbine blade through RT technique with quality inspection at three different stages, i.e., after manufacturing of master patterns, wax patterns, and casting in metal. Three different materials were considered for RT techniques, i.e., Room temperature vulcanization (RTV) silicon, polyurethane, and plaster of Paris. Master patterns were developed using stereolithography(SLA) and fused deposition modeling (FDM) process. Both master patterns were analyzed for surface roughness and dimensional accuracy. SLA pattern showed better results for surface finish and dimensional accuracy, and it was used for mold manufacturing. Wax patterns were produced from RTV silicon, polyurethane (PU), and plaster of Paris molds,and used for metal casting. Dimensional quality inspection was performed for both wax and metallic parts using noncontact three-dimensional (3D)digitizer. RTV silicon and SLA process were selected as the suitable mold material and process respectively for RT of turbine blade.

show abstract

Fabricating the Steam Turbine Blade by Direct Laser Forming

Cited by 35 publications

References 17 publications

Laser Deposition of Ti-6Al-4V Wire with WC Powder for Functionally Graded Components

Laser Deposition of Ti-6Al-4V Wire with WC Powder for Functionally Graded Components

Laser polishing of additive manufactured Ti alloys

Turbine Blade Manufacturing Through Rapid Tooling (RT) Process and Its Quality Inspection

Contact Info

Product

Resources

About