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Comparative study on laser welding and TIG welding of semi-solid high pressure die cast A356 aluminium alloy

Author: Govender, G ; Ivanchev, L ; Hope, D ; Burger, H ; Kunene, G Date: Jul 2007 Aluminium alloys are used extensively in the automotive and aerospace industries. The development semi-solid forming as manufacturing process has offered the opportunity to HPDC cast complex, near net shape, high volume, and high integrity ... Read more
Comparison of CO2 and Nd:YAG laser welding of grade 250 maraging steel, IIW doc. II-A-173-06

Author: Van Rooyen, Corney ; Burger, HP ; Kazadi, BP Date: Nov 2006 Laser welding trials were performed on thin walled cylindrical Grade 250 maraging steel tubes to determine its suitability as a joining process for rocket motor casings. Bead-on-plate (BOP) and butt welded samples were produced utilising a 5 ... Read more
Effect of heat treatment on the properties of laser-beam welded rheo-cast F357 aluminum

Author: Theron, Maritha ; Knutsen, RD ; Ivanchev, LH ; Burger, HP Date: Feb 2012 Semi-solid metal rheo-cast F357 aluminum plates were joined by autogenous Nd:YAG laser welding and were welded in either the as-cast (F) condition, T4 temper or T6 temper condition. The weldability of this age-hardenable Al–7%Si–0.6%Mg casting ... Read more
Effect of Pre/Post T6 Heat Treatment on the Mechanical Properties of Laser Welded SSM Cast A356 Aluminium Alloy

Author: Akhter, R ; Ivanchev, L ; Burger, HP Date: Feb 2007 Aluminium alloy A356 was treated by the Rheo semi solid metal (SSM) process, developed recently by CSIR-Pretoria, and cast in plates using a high pressure die casting (HPDC) machine. Plates in as cast condition (F) and heat treated T6 condition ... Read more
Influence of heat treatments for laser welded semi solid metal cast A356 alloy on the fracture mode of tensile specimens

Author: Kunene, G ; Govender, G ; Ivanchev, LH ; Knutsen, R ; Burger, HP Date: Sep 2008 The CSIR rheo-process was used to prepare the aluminium A356 SSM slurries and thereafter plates (4x80x100 mm3) were cast using a 50 Ton Edgewick HPDC machine. Plates in the as cast, T4 and T6 heat treatment conditions which had passed radiography ... Read more
Laser butt welding of thin Ti6Al4V sheets: Effects of welding parameters

Author: Omoniyi, P ; Mahamood, R ; Arthur, Nana KK ; Pityana, Sisa L ; Skhosane, Besabakhe S ; Okamoto, Y ; Shinonaga, T ; Maina, M ; Jen, T-C ; Akinlabi, E Date: Sep 2021 Titanium and its alloys, particularly Ti6Al4V, which is widely utilized in the marine and aerospace industries, have played a vital role in different manufacturing industries. An efficient and cost-effective way of joining this metal is by ... Read more
Laser welding of maraging steel rocket motor casing

Author: Van Rooyen, Corney Date: Nov 2009 This presentation looks at the experimental procedure and results of laser welding of maraging steel rocker motor casing. It concludes that a fracture occurred in weld metal of autogenous welding and that a fracture occurred in base material ... Read more
Laser welding of SSM Cast A356 aluminium alloy processed with CSIR-Rheo technology

Author: Akhter, R ; Ivanchev, L ; Van Rooyen, Corney ; Kazadi, BP ; Burger, HP Date: 2006 Samples of aluminium alloy A356 were manufactured by Semi Solid Metals HPDC technology, developed recently in CSIR, Pretoria. They were butt welded in as cast conditions using as Nd: YAG laser. The best metal and weld microstructure were ... Read more

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Browsing by Subject "Laser welding"

Browsing by Subject "Laser welding"

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