African Fusion June 2018

Contents

June 2018

FEATURES 4 70 years on: the SAIW president looks back In the year of its 70 th anniversary, current SAIW president, Morris Maroga, takes a look at how far the Institute has progressed since 1948. 10 NDT challenges relating to new materials, health and life extension projects Presenting at the NDT Conference hosted by SAINT earlier this year, Tony Paterson highlights the need for adopting new approaches to NDT in response to new materials and new operational imperatives. 14 Laser-MIG hybrid welding of thick-section titanium TC4 alloy: This paper presents research from the Harbin Institute of Technology (HIT) on the welding of thick section TC4 titanium alloy materials using Laser-MIG hybrid welding. 20 Aeroswift: a large-scale powder bed fusion AM system Hardus Greyling of the CSIR and Marius Vermeulen from Aerosud Innovation and Training talk about Aeroswift, an R&Dproject involving the development of one of the largest laser-based additive manufacturing (AM) machines in the world. 24 Welding to meet sanitary standards African Fusion talks to Air Products’ Sean Young, about the fabrication of surfaces and piping for hygienic handling of food and beverage products. 26 Mechanised and automated TIG welding Polysoude presents its innovative, customer-focused solutions with its mechanised and automated TIG welding technology. 28 Quality advantages from double-coated electrodes Alain Laurent, business developer for Lincoln Electric’s Oerlikon brand, highlights the advantages of Tenacito double-coated SMAW electrodes. 29 NAMPO: an annual welding bonanza for farmers African Fusion visits Afrox’s NAMPO stand in Bothaville and talks to Johan Pieterse and Brett Cameron about welding solutions for the farming community. 31 Metal spray solution for hydro pump turbine A coating solution fromSurcotec extends the Labyrinth seal casing life span and saves costs for Eskom’s Palmiet Hydro installation. REGULARS 3 Sean’s comment 6 SAIW bulletin board 8 Front cover story: Connected store for onsite supply of gases and hardgoods 32 Welding and cutting forum 40 Today’s technology: Practical, powerful and quiet new TIG series

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Editor: Peter Middleton E-mail: peterm@crown.co.za Advertising: Helen Couvaras E-mail: helencou@crown.co.za Publisher: Karen Grant Deputy publisher: Wilhelm du Plessis Cover design: Air Liquide Production & layout: Darryl James Circulation: Brenda Grossmann Printed by: Tandym Print, Cape

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Air Liquide has developed an onsite stockmanagement solution to cater for welding and cutting customer needs. The container-based weld- ing store offers ISO 3834-compliant temperature and humidity control for welding consumables along with real time monitoring for the control and management of stock. African Fusion talks to Mwali Kawawa, the company’s newWelding and Cutting manager andRolf Schluep, Packaged Gas businessmanager for Air Liquide in South Africa.

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June 2018

AFRICAN FUSION