工艺方案二：Difference between MIG and TIG Welding / MIG 与 TIG焊不同点
Difference between MIG and TIG Welding
MIG 与 TIG焊不同点
we will discuss difference between MIG and TIG welding. These are two main types of welding. 我们将讨论MIG和TIG焊接之间的区别。这是两种主要的焊接类型。
The term MIG is stand for Metal inert Gas welding and TIG is stand for Tungsten Inert Gas welding. These are widely use for joining a verity of shapes and material. Today we will learn the main difference between them.
术语MIG代表金属惰性气体焊接，TIG代表钨极惰性气体焊接。这些广泛用于连接各种形状和材料。今天我们将了解它们之间的主要区别。
1 MIG Welding
MIG works on same principle of arc welding. It works on basic principle of heat generation due to electric arc. This heat is further used to melt consumable electrode and base plates metal which solidify together and makes a strong joint. The shielded gases are also supplied through nozzle which protect the weld zone from other reactive gases. This gives good surface finish and a stronger joint.
MIG的工作原理与TIG或弧焊相同。它的工作原理是电弧产生的热量。该热量进一步用于熔化自耗电极和基板金属，它们固化在一起并形成牢固的接合。屏蔽气体也通过喷嘴供应，喷嘴保护焊接区免受其他反应气体的影响。这样可以提供良好的表面光洁度和更强的接合
2 TIG Welding
TIG welding works on same principle of arc welding. In a TIG welding process, a high intense arc is produced between tungsten electrode and work piece. In this welding mostly work piece is connected to the positive terminal and electrode is connected to negative terminal. This arc produces heat energy which is further used to join metal plate by fusion welding. A shielding gas is also used which protect the weld surface from oxidization.
TIG焊接的工作原理与电弧焊相同。在TIG焊接过程中，在钨电极和工件之间产生高强度电弧。在这种焊接中，大部分工件连接到正极端子，电极连接到负极端子。该电弧产生热能，其进一步用于通过熔焊连接金属板。 还使用保护气体来保护焊接表面免受氧化。
3 MIG & TIG Difference
| MIG WELDING MIG焊 |
TIG WELDING TIG焊 |
|---|---|
| 1. This welding is known as metal inert gas welding 这种焊接被称为金属惰性气体焊接 |
1. This is known as tungsten inert gas welding 这被称为钨惰性气体焊接 |
| 2. Metal rod is used as electrode and work piece used as another electrode 金属焊丝用作电极，工件用作另一电极 |
2. Tungsten rod is used as electrode 钨棒用作电极 |
| 3. It is gas shielded metal arc welding 它是气体保护金属电弧焊 |
3. It is gas shielded tungsten arc welding 它是气体保护钨极电弧焊 |
| 4. Continuous feed electrode wire is used which are fast feeding 使用连续进料电极丝，其快速进料 |
4. Welding rods are used which are slow feeding 使用缓慢进给的焊条 |
| 5. The welding area is flooded with a gas which will not combine with the metal 焊接区域充满了不会与金属结合的气体 |
5. Gas is used to protect the welded area from atmosphere 气体用于保护焊接区域免受大气影响 |
| 6. MIG can weld materials such as mild steel, stainless steel and aluminum. A range of material thicknesses can be welded from thin gauge sheet metal right up to heavier structural plates MIG可以焊接低碳钢，不锈钢和铝等材料。 一系列材料厚度可以从薄规格金属板焊接到较重的结构板 |
6. TIG weld things like kitchen sinks and tool boxes. Pipe welding and other heavier tasks can also be performed, you just need to have a unit that is capable of putting out the amount of power that you need TIG焊接厨房水槽和工具箱等东西。 管道焊接和其他较重的任务也可以执行，您只需要一个能够输出所需功率的单元 |
| 7. MIG requires consumable metallic electrode MIG需要消耗性金属电极 |
7. It used non consumable tungsten electrode 它使用非消耗性钨电极 |
| 8. Electrode is feeded continuously from a wire reel 从线盘连续地进给电极 |
8. It does not require electrode feed 它不需要电极进料 |
| 9. DC with reverse polarity is used 采用反极性直流 |
9. It can use both A.C and D.C. 它可以同时使用交流和直流 |
| 10. Filler metal is compulsory used 填料金属是强制使用的 |
10. Filler metal may or may not be used 可以使用或不使用填充金属 |
| 11. It can weld up to 40 mm thick metal sheet 它可以焊接厚达40毫米的金属板 |
11. Metal thickness is limited about 5 mm 金属厚度限制在约5毫米 |
| 12. MIG is comparatively faster than TIG MIG比TIG焊接速度快 |
12. TIG is a slow welding process TIG是一种缓慢的焊接过程 |
The above is main difference between MIG and TIG welding.
以上是MIG和TIG焊接之间的主要区别。
