welding definition and clasification

welding
Welding - obtaining one - piece compounds by establishing interatomic bonds between the joined parts when they are heated and (or) plastic deformation.   Metal welding - the technological process of connecting the metal (s) with such heating and / or pressure, as a result of which the continuity of the structure of the connected metal (s) is obtained. Notes Can be used or not used filler metal , the melting point of which is of the same order as that of the base metal (s); the result of welding is a welded joint . This definition also includes surfacing . By the term: fusion welding ; pressure welding ; welded construction . METAL WELDING CLASSIFICATION "Welding of metals. Classification" , welding of metals are classified according to three main characteristics : ph

Understanding a drone or UAV

drone
Drone Definition A drone, in technological terms, is an unmanned aircraft. Drones are more formally known as unmanned aerial vehicles (UAVs) or unmanned aircraft systems (UASes). Essentially, a drone is a flying robot that can be remotely controlled or fly autonomously through software-controlled flight plans in their embedded systems, working in conjunction with onboard sensors and GPS. Drone is a broad term that can refer to any unmanned aircraft. However, it usually refers to a multirotor. A multirotor has three or more propellers that can be used to hover or fly in any direction. The most common type is a quadcopter, which has four propellers Drone Training program General UAV theory (6 hours) UAV History and Prospects General theory Aeronautical meteorology Air na...

Car design

car
Very often, many buyers, discarding all logic, knowledge and wisdom , decide to purchase a car , guided by the appearance. Yes, this often leads to frustrations and problems. It is noteworthy that most of these buyers in the future can not even explain to themselves the reasonableness of their acquisition. Why do people, contrary to reason, make such mistakes? It's all about the design of the car. Of course, the appearance of the car is not the most decisive factor that can ultimately affect your decision to buy a car, but, nevertheless, it plays an important role in our actions. After all, we all want to own good modern and beautiful cars . If you have the means, you will not ride an old ugly Toyota, when you can buy amazing new Japanese models that have become very stylish. Unfortuna...

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welding position

welding
Welding Position Beginner's Note Here I would like to offer a brief overview of the welding positions that are most often used in practice. I will give you some information and rules on this. The images below serve only to illustrate general concepts; to accept this is not as accurate versions of the position of the torch or the like. Welding positions for fillet welds Corner seams are welded seams very often. You do not need to make extensive joint training, it is relatively easy to weld. Horizontal position This is mainly to create a weld in this position, there is no need for any special knowledge or skills necessary to perform his operation professionally. Shell position This position is also quite easy to weld and, if possible, workpieces should be prepared so that you can igno...