Introduction
The use of high-power near-infrared diodelasers for joining plastics is growing.More development work is being performedin institutions and in R&D labs,and applications in industry are slowlyincreasing. Several different approachesare being developed for laser welding ofplastics. The main principle now used tolaser-weld plastics is known as “transmissionwelding.” Transmission welding hasdemonstrated that precise, controllableheating and melting of low melting pointthermoplastics can be produced at the interfacebetween ....etc

[:=Read Full Message Here=:]

Abstract
Conditions were determined for consistent coupling of a CO2 laser beam to weld 5182 aluminum
alloy sheet. Full penetration butt and bead-on-plate welds on 0.8 and 1.8 mm sheets were
performed. Process conditions examined included beam mode, spot size and irradiance,
shielding gas flow, and edge quality and fitup. The observed weld quality variations with the
different process parameters were consistent with physical phenomena and a threshold irradiance
model. Optimal conditions were determined for obtaining consistent wel ....etc

[:=Read Full Message Here=:]

Plastics are considered to be building blocks of technology related structures of modern era. The development of polyvinylchloride, made in Germany, triggered extensive research and development in plastic fabrication work. Critical storages of alloying elements of corrosion resistance steel as well as other technological applications stimulated the use of plastic structures during the Second World War. In plastic welding smaller components are welded together to form complex structures. These structures include installation of process lines ven ....etc

[:=Read Full Message Here=:]

fffffhdedsssdfgsdgdsgdgdgdgdgdgsdg ....etc

[:=Read Full Message Here=:]

i want to know more about leser beam welding.
and want ppt for it because i need
....etc

[:=Read Full Message Here=:]

I had a project and assignment on advantages of laser beam welding. So I request you to send me the ppt free download.. Thank you!
....etc

[:=Read Full Message Here=:]

I want a ppt of laser beam welding because I wanna give presenttion on laser beam welding so I want to know by what sequence I must prepare for slides please give me a ppt of laser beam welding. ....etc

[:=Read Full Message Here=:]

 Hi am himanshu i would like to get details on welding and welding technology by r l little pdf free download ..My friend Justin said welding and welding technology by r l little pdf free download will be available here and now i am living at ......... and i last studied in the college/school ......... and now am doing ....i need help on ......etc ....etc

[:=Read Full Message Here=:]

i need a ppt of laser beam welding as soon as possible. if someone has one then please mial me. ....etc

[:=Read Full Message Here=:]

Underwater welding refers to a number of distinct welding processes that are performed underwater.

The two main categories of underwater welding techniques are wet underwater welding and dry underwater welding, or hyperbaric welding.

In wet underwater welding, a variation of shielded metal arc welding is commonly used, employing a waterproof electrode. Other processes that are used include flux-cored arc welding and friction welding. In each of these cases, the welding power supply is connected to the welding equipment through cables and ....etc

[:=Read Full Message Here=:]