Shell - what is it? For an ordinary person, this word will certainly cause interest. After all, it is completely incomprehensible what it means. Nevertheless, this thing is very necessary in any production. To do it with the necessary skills is easy. So, answering the question, the shell - what is it, it should be said - is the workpiece that is used to create cylindrical and conical structures. Make it from sheet metal by welding. Opposite edges connect to form a pipe, reservoir, or rim.
Where to begin
The manufacture of shells begins with the selection of a suitable material. Long-term practice shows that the best of them is 09X18H10T steel. It is better than others for welding. In addition, this steel allows you to choose from many types of welding. The latter is very important. Choosing the perfect welding method is very difficult, but necessary. The best in this case is the electro-beam method.
The benefits of ELM
The shell - what is it, we have already figured out. Now we will understand why this welding method is used in its manufacture. First of all, this is the quality of the seam. It turns out reliable, and this is of paramount importance. Any defect resulting from welding can be easily fixed. The process can be mechanized. Electron beam welding gives high productivity. If you compare it with other methods, then the indicators of the latter will be 20 times lower. In this regard, the ELM is the method by which the shell is made. Photos can show - the result is a high-quality part.
Quality with ELM
It was also noted that during EL welding, heat quickly leaves the working area. Along with a small amount of heat, which is necessary for this welding method, a slight deformation of the manufactured objects is obtained. Having learned the answer to the question, the shell - what is it, you probably understood - is an object of different sizes, which is easy to manufacture if you know the technology and have certain skills.