The rubric applications of this site is rather detailed and partly includes the information which has been taken from www.pogrebis-temp.com/goods.html, www.pogrebis-temp.com/technologies.html and www.pogrebis-temp.com/last-projects.html. But if you have interested only in our illustrations about edge welded bellows, membrane structures and devices for deep hydrogen purification, we recommend you to visit the subsite www.pogrebis-temp.com/unique.html too.
It is impossible to give the all applications of our new and perspective precision sets, as well as of equipment that has already filled up the international markets. Really we give 6 main branches such sets and equipment usage plus some other cases where, in our opinion, these sets have the most large prospects - especially for goods with wall thicknesses up to 3 mm. And we would be very glad to hear the readers of this site opinion on this matter.
Of course, several alternative solutions have to be examined before the concrete customer will choose the optimal method and equipment for his problem decision. At the base of our scrupulous analysis of different literature and Internet sources we have built the Table which describes comperative properties of main joining methods and equipment, applied to thin-walled structures made of the majority metal materials, excepting so-called exotic.
|
Comparative Properties |
Joining methods | ||||||
| Gas | Tig | Plasma | Laser | Electron beam | Resistance spot | High frequency | |
| Level of universality | high | high | high | limited | limited | medium | limited |
| Productivity | low | medium | medium / high | high | high | high | very high |
| Energy expences | low | low | low/medium | high | high | high | very high |
| Ecologycal problems | yes | not | not | yes | not | not | yes |
| Materials properties limitation | yes | almost not | almost not | without high reflective capability | without easy evaporating components | except silver and copper | yes |
| Assembling quality demand | low | low | low/medium | high | high | medium | high |
| Hygeinic demand | medium | low | medium | high | very high | medium | medium |
| Post-joining deformations | large | quite large | medium | very small | very small | small | small |
| Operator's qualification | high | high | low | very high | very high | low | high |
| Working room (place) dimensions | medium | small | small | medium | medium / large | medium / large | medium / large |
| Working piece sizes and location | every | every | every | limited | limited | limited | limited |
| Equipment cost | very low | low | medium | high | high | medium | medium / high |
So,we can make the conclusion that only argon and plasma welding need small working room (place), provides for every working piece sizes and location, almost none or not matrerial's properties limitation, low or medium pretensions to hygienic and ecological conditions. Both these methods have less productivity but simultaneousely - less energy expenses. As compared with TIG (argon) welding, plasma welding needs not so high qualification (dexterity) of an operator, but it is more problematic for a work in hardly accessible and inner corner places. On this matter gas processes, especially based on acetylene-oxygen mixtures burning, are more flexible but need skilled operators and additional measures coupled with safety and ecology. And although gas equipment is the cheapest it can not be used for many precision structures manufacturing because of limitations connected with properties of these structures materials and large their deformations. Of course, these limitations are the results of very large melting and heating zones during gas welding and brazing processes. The laser welding, as well as electron-beam, provides minimal heating zone, but it demands high operator's qualification, too precision assembling quality, and its cost is very high. Electron-beam welding needs vacuum systems and additional time for their using. High frequency, or induction, devices as well as heating furnaces usually bring problems with safety and ecology, need special working places and may be mostly recommended in mass production. Also they demand high energy expenses- like resistance spot welding which, being more universal, can not be used in many cases, for every types of goods. In addition these goods usually have distinct and often not very fine signs - after contact with welding machine electrodes.
Only equipment which uses a water electrolysis (which belongs to gas joining method) and original plasma set "Multipluz-2500" (see, please, our rubric dental laboratories) are very compact because they do not need gas cylinders using. This moment, however, is not so important for industrial, dental and medical-biological cases, because for them the stational equipment may be successfully used.
So, as compared with alternative equipment, possible applications of the new welding sets look rather perspective because these sets may be accessible for any customer and does not bring serious pretension in exploitation (it is possible to use gas cylinders with small dimensions and weight), service and repair. In this case welding really becomes a property for everybody and everywhere, and we can talk about using welding in every day life.
