News for the Shipbuilding industry sector
Latest news / events
- Critical review of joining processes for powder metallurgy parts
- Joint Arc Welding and Pressure & Process Plant Technical Group Meeting
- Assessment of Bobbin Friction Stir Welding for the Joining of Aluminium Alloys
- WJS Materials Technical Group Meeting
- WJS Branch Events (October / November)
Critical review of joining processes for powder metallurgy parts
EuroPM2008 International Powder Metallurgy Congress and Exhibition
(29 September - 1 October 2008) Mannheim, Germany
Powder metallurgy (PM) processes have high productivity and are ideal for making near net-shape parts of especially complex geometries from a range of materials, which maximises material utilisation, and hence minimises or eliminates secondary operations such as machining. Secondary operations are common for components made via liquid metal processing, and result in an additional step in manufacturing with substantial cost and waste implications. Despite this obvious advantage of PM processes, however, the joining of materials synthesized from powders has been associated with difficulties related to their inherent characteristics, such as porosity, contamination and inclusions, at levels, which tend to influence the properties of a welded joint.
This paper presents a critical review of the current state-of-art of welding PM components. It also seeks to identify preferred joining processes and identify apparent technology gaps in joining of PM parts, in terms of initial processing and attendant materials issues, with an emphasis on offering solutions to welding problems.
For full paper, click here
Joint Arc Welding and Pressure & Process Plant Technical Group Meeting
'Weld repairs in ageing plants'
8 October 2008, Abington
Assessment of Bobbin Friction Stir Welding for the Joining of Aluminium Alloys
The friction stir welding (FSW) process was invented by TWI and was originally developed for industrial exploitation via a TWI Group Sponsored Project (GSP), the Sponsors of which were amongst the first to benefit from the new technology. TWI has recently developed a novel enhancement to the FSW process, which offers the potential to produce improved full penetration welding performance using significantly simplified, and therefore cheaper, equipment. The enhanced process can be implemented in two varieties named fixed and floating bobbin FSW. Bobbin friction stir welding has the potential to be a valuable high productivity manufacturing technique for structures of interest to the transport industries, offering high quality, highly repeatable welds at a competitive cost. It is proposed to develop, evaluate, and demonstrate the capabilities and benefits of bobbin FSW via a new GSP. Participants in the GSP will be ideally placed to become early adopters of the new technique and to benefit from the enhanced capabilities that it offers.
Launch Meetings - Japan and UK
Japan
Venue: Tokyo-to ChushoKigyo Shinko Kosha (Shokuhin Gijutsu Center)
Tel: 03-3257-0741 at Akihabara.
Date: 17 October 2008
Time: from 13.30hrs
UK
Venue: TWI Ltd Granta Park, Great Abington, Cambridge CB21 6AL
Tel: +44 (0) 223 899000
Date: 21 October 2008
Time: 13.30hrs BST
For further information, please click here.
WJS Materials Technical Group Meeting
(Jointly with the Younger Members Committee of The Welding Institute)
Materials Issues in Weld Integrity
Thursday 27 November 2008
TWI Conference Centre, Granta Park, Cambridge
Chairman: Dr Peter Boothby - Advantica
Secretary: Dr Cem Selcuk - TWI
Speakers from Industry and Academia include:
JCB
Joy Mining
Corus
Cranfield University
Weld integrity has always been an important materials issue, especially in applications, involving arduous loading conditions, including off-road vehicles, mining, aerospace, pipelines and process plant. Considerable progress has been made in improving the performance of existing materials and structures. This has been achieved by developing advanced technology solutions that could meet the requirements of increasingly demanding applications and severe operating conditions. As there is a strong demand for creating light-weight materials and structures, with an aim to reduce the carbon footprint of materials and processes, the integrity of welded joints has become a critical materials and design issue in developing reliable, high performance components and structures. This one day event, open to everyone, brings together experts and pioneers from both industry and academia, with the aim of capturing the state-of-art and issues in weld integrity, through presentations and discussions. The programme will be an ideal opportunity for sharing information on new research and development. It will also provide a useful forum for networking and gaining an insight into this important technical area.
For further information when available, please contact rachel.wall@twi.co.uk
WJS Branch Events (October / November)
Works visit: Warship Repair
An on-site meeting in Docks Adjacent to Lairdside Site
Tuesday, 4 November 2008
Please contact Robert Walker for further information on: 0151 3500372 / bob.walker@shell.com
New technology in gases
The Connaught Hotel, 40-56 Tettenhall Road, Wolverhampton WV1 4SW
Monday, 10 November 2008
UHP Water jetting - the state of the art and future developments
Joint Meeting with Institute of Corrosion
By: Graham Rowcliffe, Doornbos Equipment (UK) Ltd
The Naval Club, 38 Hill St, London W1
Thursday, 13 November 2008
Superliner 'Queen Mary 2'
By: Warwick Malinowski (Lloyd's Register of Shipping)
BAE Systems, Marconi Way, Rochester, ME1 2XX
Thursday, 20 November 2008
Fitness-for-Service of Welded Structures
Joint Meeting with Institute of Physics
By: Eur Ing Isabel Hadley, TWI Ltd
IOP, 76 Portland Place, London W1B 1NT
Wednesday, 26 November 2008
For further information, please contact twi_professional@twi.co.uk
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