TWI Research Reports for the welding equipment, consumables and materials sector
Over the years, TWI staff have written many articles relating to the welding equipment, consumables and materials industry sector. The following are the major R&D reports produced which are confidential to Industrial Members of TWI.
Note: Members are invited to contact TWI Library to obtain copies of these papers or, where there is an active link, to download them from the website.
2007
860/2007 C M Allen Achieving aerospace-standard porosity requirements when laser welding 7xxx aluminium alloy; Part A: Hybrid Nd:YAG laser-MIG welding 6mm thickness alloy
861/2007 G Verhaeghe Achieving aerospace-standard porosity requirements when laser welding 7xxx aluminium alloy; Part B: Autogenous Yb-fibre laser and hybrid Yb-fibre laser-MIG welding of 12.7mm thickness alloy
862/2007 C M Allen Weld metal mixing in hybrid Nd:YAG laser-MAG welding of 8mm S275 structural steel plate
863/2007 W M Thomas, M F Gittos, P Tubby and D G Staines Friction Skew-stir TM lap welding 5083-H111 aluminium alloy - process development and mechanical/fatigue evaluation
864/2007 J C Perrett and P D Sketchley Hole repair in steel plate using friction taper plug welding - initial trials in air and underwater
865/2007 S G Shi and S A Westgate Fibre-delivered laser welding of ultra-high strength steels for automotive applications
866/2007 V Kumar Development of keyhole plasma orbital welding procedures for carbon steel and austenitic stainless steel pipes
867/2007 G Ng Laser deposition of functionally graded material
2006
854/2006 A Gregori Repair of single crystal CMSX-10 blades and polycrystalline Mar-M247 vanes by high-frequency pulsed DCEN TIG welding
853/2006 C S Punshon Local vacuum system development for reduced pressure electron beam welding Technology review
851/2006 M E Nunn Specification of portable friction stir welding equipment
846/2006 H Graham Effects of surface condition on CO 2 laser cutting quality for two ferritic steels
844/2006 M A Riley HVOF sprayed alternatives to hard chromium plating
843/2006 G Shi, G Verhaeghe and P A Hilton In-process weld quality monitoring of laser and hybrid laser-arc fillet welds in 6-12mm C-Mn steel
842/2006 D Bertaso and R L Jones Orbital A-TIG welding of stainless steel tube using a low cost activating flux
841/2006 C M Allen Hybrid Nd:YAG laser-AC MIG welding of 1.2mm thickness automotive aluminium alloy
840/2006 C M Allen CO 2 and Yb fibre laser and hybrid laser-TIG welding processes in 10mm thick stainless steel
2005
838/2005 R Johnson Friction stir welding of steels - status report
835/2005 A G Gunner Curing and high temperature stability of silica-based sol-gel coatings
829/2005 A G Gunner, A Taylor, P Jackson and J S Abell Initial development of transparent conducting coatings by a sol-gel route
825/2005 D Kirkpatrick Technology survey and assembly demonstration of flip chip bonding
824/2005 R E Andrews and K A Beamish Characterisation of, and guidelines for, rotary friction welding of common metallic engineering materials
823/2005 N D Spong An introduction to off-line programming of industrial robots
822/2005 G Verhaeghe Initial performance assessment of Yb fibre laser technology in the power range from 4 to 7kW for welding structural steel
820/2005 M A Riley Evaluation of high velocity oxyfuel sprayed coatings of amorphous and nanocrystalline materials
819/2005 G Shi and S A Westgate Techniques for improving the resistance spot weldability of 1.6-2.0mm ultra-high strength steels for automotive applications
818/2005 G Shi, P A Hilton, S J Mulligan and G Verhaeghe On-line adaptive control for hybrid Nd:YAG laser/MAG welding 8mm thick steel plate
817/2005 S J Mulligan Development of joint finding, following and adaptive arc welding procedures for autonomous robotic manufacture
2004
815/2004 P L Threadgill and R Johnson Progress in friction stir welding of steels
814/2004 D Bertaso, R L Jones and G B Melton Novel application of the keyhole plasma process for welding thin section stainless steels
813/2004 N Bagshaw Low stress no distortion (LSND) welding in 304 stainless steel: Improved numerical simulation and experimental validation
811/2004 A Gregori and D Bertaso Welding and deposition of nickel superalloys 718, Waspaloy and single crystal alloy CMSX-10
809/2004 G J Carter Risk assessment and control of exposure to fume during arc welding of steel
808/2004 S D Rostami Development of a novel pre-treatment for adhesive bonding of aluminium alloys
807/2004 A Gunner, P Jackson and C Williams Development of sealing technologies for solid oxide fuel cells
806/2004 A L Buxton Development of joining and sealing technologies for polymer fuel cells
804/2004 S J Mulligan AC pulsed MAG and powder plasma arc welding of positional unbacked root passes - a feasibility study
802/2004 S J Mulligan Tolerance of the MAG welding processes to gaps in lap joints in thin sheet steel
801/2004 M J Russell Development of improved tool designs and parameters for the friction stir butt welding of 1.2, 6 and 25mm thickness aluminium alloys
799/2004 A Sanderson Improvements to a high brightness 7.5kW electron beam system and initial processing trials
798/2004 S G Shi and S A Westgate Techniques for improving the weldability of TRIP steel using resistance spot welding
797/2004 C M Allen and C H J Gerritsen ND:YAG laser joining of aluminium sheet to galvanised steel sheet: initial studies
796/2004 C H J Gerritsen Hybrid Nd:YAG laser MAG welding of T joints in C-Mn steels for shipbuilding applications
795/2004 C M Allen Laser welding of aluminium alloys - principles and applications
794/2004 R J Scudamore and J Allen Laser deposition of nickel-based superalloy, Waspaloy - A preliminary study
793/2004 C M Allen Twin spot laser welding for dissimilar thickness steel tailored blanks
792/2004 S G Shi and P A Hilton A comparison of the gap-bridging capability of CO 2 laser and hybrid CO 2 laser MAG welding on 8mm thickness C-Mn steel plate
790/2004 N D Spong and C N D Peters Overview of flexible automation in the structural fabrication industry
787/2004 S Shrestha Preliminary evaluation of metallic coatings deposited using the cold spray process
2003
774/2003 A Gregori A survey of welding and repairing of nickel superalloys for gas turbines
771/2003 S J Mulligan Pulsed MIG arc welding processes for joining of thin sheet aluminium
768/2003 K Beamish Friction taper plug welding of 10mm AA6082-T6
767/2003 S G Shi, S A Westgate Resistance spot welding of high strength steel sheet (600-1200N/mm 2 )
766/2003 R Johnson Further assessment of the friction stir welding of magnesium alloys
765/2003 A Lugan Feasibility of twin spot Nd:YAG laser welding of 2024 aluminium alloy
764/2003 G Verhaeghe Factors affecting the level of porosity in Nd:YAG laser welded 3.2mm 2024 aluminium alloy
763/2003 A C Woloszyn, L S Smith, N C Sekhar, D S Howse, P A Hilton Development of procedures for low porosity Nd:YAG laser welding of 3.25 and 6.35mm thickness titanium
761/2003 P L Threadgill A review of friction stir welding: Part 2, selection of tool materials
760/2003 M E Nunn, P L Threadgill A review of friction stir welding: Part 1, process review
759/2003 S Shrestha Evaluation of a high velocity wire flame spraying process
2002
751/2002 B G I Dance Electron beam texturing
745/2002 S J Mulligan and G B Melton An assessment of the tandem MIG-MAG welding process
742/2002 A Lugan Comparison of the cutting of four different steels, using linearly and circularly polarised laser light
741/2002 C H J Gerritsen Single-sided welding of thin galvanised sheet to hydroformed tube for automotive applications
740/2002 D W Taylor Composition and surface effects on CO 2 laser cut edge quality in carbon and C-Mn steels
739/2002 D Downs and S Mulligan Hybrid CO 2 laser-MAG welding of carbon steel - a literature review and initial study
738/2002 R Johnson Preliminary assessment of the friction stir welding of magnesium alloys
737/2002 R D Halldearn and A J Sturgeon Multi-layer coatings of alumina and nickel alloy prepared by high velocity oxyfuel (HVOF) spraying
736/2002 G J Carter Evaluation of the effect of arc welding practice on fume emission rate, exposure to fume and its control
735/2002 E J C Kellar Silane pre-treatment of Al alloys for adhesive bonding
2001
732/2001 S Mason Reflow performance of solder paste with tin/silver/copper alloy
730/2001 I A Jones, R Wise and P Hilton The Clearweld ® process for laser welding of plastics and fabrics
729/2001 L J Ecclestone and D R Ormston The development of reinforced braze alloys for brazing ceramics
728/2001 C I C Manger and R J Scudamore The tolerance of adhesively bonded GFRP joints to interlaminar flaws
725/2001 D Howse An investigation into the use of active fluxes for MIG/MAG welding of C-Mn steel
723/2001 C A Olivier and C H J Gerritsen Study into the use of process gases in high power Nd:YAG laser welding of C-Mn and stainless steels
721/2001 G Verhaeghe, J Weston and N G Smith Considerations for a robot welding cell - a guide document
720/2001 S A Westgate Review of assessment methods and the influence of process factors on the quality of self-piercing riveted joints
719/2001 A Sanderson Design and development of a locally coupled, high frequency pulser for 100kW EB welding
2000
717/2000 C N Ribton and O Nello Development of novel compact power supplies using Tesla coils for EBW and other high voltage applications
716/2000 R Johnson Forces in friction stir welding of aluminium alloys - further studies
712/2000 P Woollin and B J Ginn Effect of nitrogen addition to nickel alloy TIG weld metals on corrosion resistance
710/2000 C C Otter, N R Stockham, P A Hilton and I A Jones A review of the use of lasers for precision microcomponent manufacture
708/2000 I A Jones and E Olden A thermal model for transmission laser welding of thermoplastic polymers
703/2000 G B Melton and R L Jones Assessment of the TWI top face control system for TIG welding
702/2000 S W Kallee Rotating arc welding of thin section tubulars - machine development
701/2000 G Verhaeghe and G B Melton An investigation of the use of transient arc data to detect process deviations
700/2000 A C Woloszyn Assessment of the mechanised flux cored arc welding process for underwater wet welding
699/2000 C Reignier Preliminary evaluation of electrospark deposition process for repair of worn components
698/2000 A Alès On-line monitoring of laser welded steel tailored blanks
697/2000 D S Howse MAG weld procedure development for galvanneal coated high strength steel sheet
696/2000 R Johnson and N L Horrex Preliminary examination of forces generated during the friction stir welding process
