Proven technology of additive manufacturing of hydraulic pump blades with LSP-treated surfaces

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F21%3A00010792" target="_blank" >RIV/46747885:24620/21:00010792 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/22:00559053

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Proven technology of additive manufacturing of hydraulic pump blades with LSP-treated surfaces

Original language description

The aim of this proven technology is the progressive manufacturing of geometrically complex hydraulic pump blades from AISI 304L stainless steel. To achieve this goal, Selective Laser Melting (SLM) additive technology was used. Moreover, the surface of the blades was treated using Laser Shock Peening (LSP) technology to increase the performance of the blades. In the additive manufacturing part, process parameters were evaluated for selected steel to ensure reliable melting and the lowest possible porosity. Another goal was to achieve the maximal quality of the surface in order to reduce conventional finishing operations needed to assemble the part into the pump unit. LSP surface treatment plastically deforms the part and it is changing the residual stress state and improves the mechanical properties (including fatigue life).

Czech name

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Czech description

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Type

Z_tech - Verified technology

CEP classification

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OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

<a href="/en/project/TN01000038" target="_blank" >TN01000038: National centre of competence for Materials, Advanced Technologies, Coatings and their Applications</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

C - Předmět řešení projektu podléhá obchodnímu tajemství (§ 504 Občanského zákoníku), ale název projektu, cíle projektu a u ukončeného nebo zastaveného projektu zhodnocení výsledku řešení projektu (údaje P03, P04, P15, P19, P29, PN8) dodané do CEP, jsou upraveny tak, aby byly zveřejnitelné.

Internal product ID

18/HiLase2021

Numerical identification

TN01000038/06

Technical parameters

After analysis of the currently used manufacturing process of hydraulic pump blades, our team proposed the innovative application of SLM additive manufacturing and LSP surface treatment into this area. During our work, we developed and designed new features of the blades which can only be achieved with the use of the two above described technologies. During this year, we proved that the manufacturing of blades with progressive SLM technology is a very good option with promising possibilities in future development. The planned use of the hollow-core inside the body of the blade will lead to a reduction in weight. The specially designed outer surface which is also part of our future work is expected to dramatically increase the functional properties of the product. LSP was also proved to enhance the properties of the final product due to the fact that impart compressive residual stresses and improvements in microstructure enhance the 3D printed parts additionally so it can find its use in industry where the quality and safety present priority. Contact person Jiří Šafka (jiri.safka@tul.cz)..

Economical parameters

The results will be used for other projects and applications aimed at increasing cavitation resistance. These applications should generate commercial income depending on the number of applications and industry partners..

Application category by cost

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Owner IČO

68378271, 25355015, 28645413,

Owner name

Fyzikální ústav AV ČR, v. v. i., SIGMA Výzkumný a vývojový ústav, s. r. o., CENTRUM HYDRAULICKÉHO VÝZKUMU spol. s r.o., Technická univerzita v Liberci

Owner country

CZ - CZECH REPUBLIC

Usage type

A - K využití výsledku jiným subjektem je vždy nutné nabytí licence

Licence fee requirement

A - Poskytovatel licence na výsledek požaduje licenční poplatek

Web page

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