Mohamad Tarek Farag

SIERRA E&M, Egypt

Title: Metal 3D Printing in Impeller Manufacturing

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Biography

Briefly, I am a Senior Mechanical Design Engineer who is specializing in Double Suction Centrifugal Pumps design, I successfully Designed more than 15 pumps and some of them already operate at sites with sufficient hydraulic and mechanical performance, The wide range of pumps (60-1500 L/s Capacity) and (20-160 mwc Head) gave me the experience to develop the newer generations of pumps aesthetically and hydraulically. I am using high-tech for example, and not as a limitation SLM to develop the design of the impeller and the pump. Also, I participated in the Mega Oil&Gas project “110 m diameter crude oil tank” as the youngest Site Manager in PETROJET the mega Oil&Gas company in the middle east, and the project was Genius awarded as the largest floating roof tank in the world.

Abstract

Pump construction has always been an advanced science specially the pump’s heart; the Impeller, back when Karl Pfleiderer developed the vane’s inlet velocity formula, the sensitivity of the vanes dimensions and angles became crucially affecting the hydraulic performance and the pump’s efficiency. Pump manufacturers mostly use an ordinary corebox to shape the water cavity inside the impeller, in SIERRA we have even developed this method with TWO high technology methods. The first Metal 3D Printed Vanes in Egypt, we have used LASERTEC 30 SLM 2nd Gen. SLM 3D printer (One of a kind in Egypt) from DMG MORI. Using the brilliant METAL POWDER STAINLESS STEEL 1.4404 / 316L from Heraeus GmbH. The Second Method is to pint the impeller core print and core box sands using Sand 3D Printers XL, still under studying.