http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 13.86Change: -0.01
R/$ = 12.56Change: 0.06
Au 1094.53 $/ozChange: -2.53
Pt 979.00 $/ozChange: -5.00
 
 
Note: Search is limited to the most recent 250 articles. Set date range to access earlier articles.
Where? With... When?








Start
 
End
 
 
And must exclude these words...
Close Main Search
Close Main Login
My Profile News Alerts Newsletters Logout Close Main Profile
 
Agriculture   Automotive   Chemicals   Competition Policy   Construction   Defence   Economy   Electricity   Energy   Environment   ICT   Metals   Mining   Science and Technology   Services   Trade   Transport & Logistics   Water  
What's On Press Office Tenders Suppliers Directory Research Jobs Announcements Letters Contact Us
 
 
 
RSS Feed
Article   Comments   Other News   Research   Magazine  
 
 
Nov 18, 2004

What's next in the world of welding

Back
Engineering|Aluminium|Building|Design|Gas|Industrial|PROJECT|Safety|Stainless Steel|transport|Welding|Energy|Manufacturing|Products|Steel|Environmental
Engineering|Aluminium|Building|Design|Gas|Industrial|PROJECT|Safety|Stainless Steel|transport|Welding|Energy|Manufacturing|Products|Steel|Environmental
engineering|aluminium|building|design|gas|industrial|project|safety|stainless-steel-company|transport|welding|energy|manufacturing|products|steel|environmental
© Reuse this Since the introduction of the coated electrode 100 years ago, several other processes have been invented, for instance SAW (submerged arc welding), TIG (tungsten inert gas) welding, MIG/MAG (metal inert gas/metal active gas) welding, plasma cutting and FCAW (flux cored arc) welding.

What can we expect to come next? Will mechanical joining processes or structural adhesives be a threat to the traditional processes? Welding today is closely allied to the consumption of metals. Steel dominates and will continue to do so for the foreseeable future. Global consumption has grown at 1,4% a year during the last decade. With the extremely high consumption growth in China during the last five years (26% for 2003), the global consumption of crude steel is expected to exceed a billion tons.

China is by far the largest consumer of steel, with 27% of the world’s production. With more than a billion citizens and an increasing ownership of products such as motor cars, the growth of steel consumption will continue.

Steel consumption in China is also influenced by a growing shipyard industry. The Chinese government is committed to becoming the world leader in shipbuilding, surpassing the current leader, South Korea. Work has begun in China on what is the world’s lar- gest shipbuilding yard. The new yard is being constructed along 8 km of coast on Shanghai’s Changxiang Island. It is scheduled to be fully operational by 2015, and will help China State Shipbuilding Corp to become the world’s top shipbuilder. It will have an annual capacity of 8 mdwt for building supertankers, gas carriers and cruise ships.

Stainless-steel consumption in the world has a steady growth of 5,5% a year. It dropped below 20 Mt three years ago, but exceeded this level in 2003, reaching 21,5 Mt. China contributed to this with its 54,2% growth in 2003. This requires the use of high-quality welding processes, such as TIG and plasma welding. Laser welding is also anticipated.

The change in aluminium consumption is much lower than expected at 2,8% year, on average, for the period 1990 to 2003. This figure will dramatically change when aluminium is more commonly used in cars and in other parts of the transport industry. The number of cars with an aluminium body is increasing. Audi, Jaguar, Honda, Toyota, Ferrari, Mercedes-Benz and GM are among those offering such cars to reduce environmental impact and improve passenger safety. All structures can be designed to absorb the same energy as steel at only 55% of the weight. Design concepts in aluminium are continuously changing to reduce the manufacturing cost of aluminium bodies. A former MD for Audi claimed that the aluminium car body was about €500 more expensive than steel.

The manufacturing technology for aluminium bodies needs to be further improved, for example mechanical joining with clinching and self-piercing riveting processes. Laser/MIG hybrid welding is another joining process that results in lower heat distortion and a stiffer car body. It will be a considerable time, however, before aluminium exceeds the use of steel. In 2003, some 26,4 Mt of aluminium was produced, about half being used in industrial products and in capital goods compared with steel manufacturing with 855 Mt.

To counter the higher use of aluminium, the steel industry has introduced advanced high-strength steels in the body and other parts of the car. It was developed in a project, known as Ulsab, financed by 33 steel companies. Porsche Engineering produced the conceptual design, ending up with weight savings of 200 kg.
Edited by: Karel Smrcka
© Reuse this Comment Guidelines (150 word limit)
 
 
 
 
 
 
 
 
Other Stainless Steel News
After earlier this week confirming that it had temporarily ceased steel production at its steelworks, citing working capital constraints and reduced domestic demand, Evraz Highveld Steel and Vanadium on Tuesday said it had issued a proposed restructuring notice in...
IMPRESSIVE RESULTS Strenx steel is delivered with a set of guarantees that ensure trouble-free production consistently
Specialised global steel company SSAB’s new brand of steel, Strenx, is a high strength structural steel in the 600 to 1300 MPa range. Strenx performance steel combines the best properties of the three brands it replaces – Optim, Weldox and Domex – from SSAB and...
This eight-page brief is a synopsis of key developments in the steel industry over the past 12 months. It provides an overview of the global and South African steel markets, South Africa’s major steel producers and events that have shaped these markets.
More
 
 
Latest News
Updated 24 minutes ago Enhancements to the Gautrain service will see users gain access to the rapid-rail link by tapping their local or international bank-issued contactless credit and debit cards at the fare gates – instead of their Gautrain gold cards – provided they are compliant with...
Former PRASA CEO Lucky Montana
Updated 41 minutes ago South African President Jacob Zuma should fire Passenger Rail Agency of South Africa (PRASA) board chairman Popo Molefe and reinstate fired CEO Lucky Montana to restore order at the rail organisation, the South African Transport and Allied Workers Union said on...
Updated 1 hour 17 minutes ago South African power utility Eskom is open to importing coal for plants it still plans to commission, a coal conference heard on Tuesday. Willem Theron, business development manager of Eskom's southern Africa transmission group, said the state-run utility planned to...
More
 
 
Recent Research Reports
Real Economy Year Book 2015 (PDF Report)
There are very few beacons of hope on South Africa’s economic horizon. Economic growth is weak, unemployment is rising, electricity supply is insufficient to meet demand and/or spur growth, with poor prospects for many of the commodities mined and exported. However,...
Real Economy Insight: Automotive 2015 (PDF Report)
Creamer Media’s Real Economy Year Book comprises separate reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, gold, iron-ore and platinum sectors.
Real Economy Insight: Water 2015 (PDF Report)
Creamer Media’s Real Economy Year Book has been divided into individual reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, coal, gold, iron-ore and platinum sectors.
Real Economy Insight: Construction 2015 (PDF Report)
Creamer Media’s Real Economy Year Book has been divided into individual reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, coal, gold, iron-ore and platinum sectors.
Real Economy Insight: Electricity 2015 (PDF Report)
Creamer Media’s Real Economy Year Book has been divided into individual reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, coal, gold, iron-ore and platinum sectors.
Real Economy Insight: Road and Rail 2015 (PDF Report)
Creamer Media’s Real Economy Year Book has been divided into individual reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, coal, gold, iron-ore and platinum sectors.
 
 
 
 
 
This Week's Magazine
Updated 4 hours ago Meyerton-based steel tank manufacturer Structa Technology is currently rolling out a water infrastructure build programme that supports local municipalities, water utilities, schools, hospitals and clinics. As a member of the Structa Group, Structa Technology proudly...
Alternative funding models could be expected to begin coming to the fore in South Africa’s renewable-energy sector as the market becomes more competitive and domestic development finance institutions (DFIs) begin scaling back their direct involvement in projects....
DIMITRI MARKOULIDES An innovation champion must involve employees in innovation projects and keep them updated to enable them to support and drive innovation and create the future of the business
An innovation champion course that trains executives to manage innovation in their organisations aims to help companies grow revenue streams and tap new markets, says business change management consultancy BMGI South Africa innovation practice lead Dimitri...
Future digital workplaces will require employees to continuously learn new “literacies”, including new media, information and technical skills, to help their company thrive and spur personal growth. Information technology (IT) research firm Gartner, thus, suggests...
Only 25% of large construction projects surveyed in KPMG’s Global Construction Project Owner’s Survey, released in June, were concluded on time and within budget over the last three years. “Every project owner wants predictability when it comes to large projects, and...
 
 
 
 
 
 
 
 
 
Alert Close
Embed Code Close
content
Research Reports Close
Research Reports are a product of the
Research Channel Africa. Reports can be bought individually or you can gain full access to all reports as part of a Research Channel Africa subscription.
Find Out More Buy Report
 
 
Close
Engineering News
Completely Re-Engineered
Experience it now. Click here
*website to launch in a few weeks
Subscribe Now for $96 Close
Subscribe Now for $96