Influence Analysis of Flow Entry Conditions on the Centrifugal Compressor Impeller Blades to Integral Gasodynamic Characteristics in a Combine Regulation Method

Vanyashov, A. D.; Karabanova, V. V.; Vasenko, E. M.

doi:10.1016/j.proeng.2016.07.719

Cited by 5 publications

(1 citation statement)

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“…The combined electrolytic machining method divides the blade machining of the integral impeller into two basic steps of the inter-leaf path machining and the blade surface finishing. In the process of process design, digital manufacturing technology is used to solve the problems of cathode design, parameter selection and machining path in the process of free-form surface impeller blade [1,2,3]. In the design of electrolytic machining device for blade finishing, the structural forms that can be considered are open and closed.…”

Section: Introductionmentioning

confidence: 99%

Research on Key Process Technology for Profile Electrolytic Finishing of Large Marine Propeller Impeller

Bi-rong

Chen

et al. 2018

Polish Maritime Research

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An electrolysis process method for free-form blade surface finishing is proposed for a free-form surface impeller, and a stepwise method is used to process the inter-blade channel of the overall impeller. The forming cathode is then used to finish the blade to meet the blade processing requirements. In the design, the forming cathode structure was improved by using motion simulation software, and the flow field simulation software was used to simulate and analyze the cathode flow channel. The cathode shape and the electrolyte flow rate between the electrodes meet the processing requirements. In the process of processing experiments, the motion path of the cathode was analyzed and optimized. The effect of the feed direction on the uneven distribution of the blade machining gap was reduced through optimization, and high-frequency pulse power processing was used to reduce the machining gap and improve the machining accuracy of the blade. The experimental results show that the process scheme is feasible and the precision of the processed impeller free-form surface is significantly improved. The material is a monolithic turbine disk of high-temperature alloys, and its large twisted blade processing has always been a problem in the manufacturing industry.

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Section: Introductionmentioning

confidence: 99%