|1) outfit||a) the process of burning something|
|2) valve||b) an elastic device, typically a helical metal coil, that can be pressed or pulled but returns to its former shape when released, used chiefly to exert constant tension or absorb movement|
|3) spring||c) an apparatus that burns with a hot flame for welding, brazing, or soldering|
|4) hose||d) a complete set of equipment needed for a particular purpose|
|5) combustion||e) a pipe made of rubber or plastic, along which a liquid or gas flows|
|6) adjustment||f) material that is burned to produce heat or power|
|7) torch||g) a device for controlling the passage of fluid through a pipe or duct|
|8) fuel||h) a small change that is made to something such as a machine or a way of doing something|
Use your knowledge of welding processes and information from the previous units and decide what welding processes are defined below.
1. ... is a technique in which metal is welded by heat generated by an electric arc struck between two electrodes or between one electrode and the metal workpiece
2. ... is a method of welding in which a combination of gases, usually oxyacetylene, is used to provide a hot flame.
3. ... is a welding technique in which the parts to be joined are held together under pressure and heat is produced by passing a current through the contact resistance formed between the two surfaces.
Arc welding. Technology in use | Name each of the paragraphs. Agree or disagree with the paragraph titles of your groupmates. Substantiate your statements. | Some methods (characterize) by a stable arc and high quality welds. | Bumserdeg | Arc welding. | Answer the following questions. | In this game the group tries to guess the letters of a word, and the presenter records failed attempts by drawing a gallows and someone hanging on it, line by line. | Welding processes. Gas and resistance welding. | Answer the following questions. | Exclude the word which is not right in the lexical row. |