Titanium Alloy Welding Technique

Titanium and its alloy are extensively used in aerospace, chemical market, shipbuilding etc, due to the fact that of its low density, high strength, and deterioration resistance. At present, high quality plane and tank are being made of titanium alloy parts which are being used more extensively in oil chemical market. In the application of titanium in plane and its engine and chemical market, welding method is essential. Welding technique is essential to the developing of titanium alloy application. This post is to mention some of the issues in the procedure of welding.

1. Welding capability of titanium alloy

A lot of titanium alloy can be processed in arcogen welding, and all of them can be processed in solid-state welding, such as TIG, MIG, low-current plasma arc electron, welding and laser beam welding. In actual reality, the occurrence tendency of defect in titanium alloy welding is much smaller than ferrous materials (such as iron alloy and nickel alloy). Although titanium has such superior capability in welding, some engineers still consider it difficult in welding titanium alloy Due to the fact that of its specifically demand of gas protection in welding, only those very professional can please this demand. In actual fact, lots of methods might be used in welding titanium alloy. As N2 O2 and carbon material are involved, the welding point ends up being more fragile. So the welding location has to be cleaned and protected by inert gas. Welding material is chosen as per the abilities of welding alloy.

2. Gas cavity in titanium alloy.

The occurrence of gas cavity in welding point is generally due to the clean of the alloy and the length of welding time. Likewise O2 N2 CO2 and inert gas might lead to the event of gas cavity.

The very same as aluminum oxide, titanium oxide is moisture absorbing.

Steps of minimizing gas cavity in titanium alloy welding:

1. welding product ought to be dry.

2. ready welding product must be used within Two Days.

3. Titanium and welding material need to be cleaned.

4. Welding ought to be safeguarded by high purity nontoxic gas and helium gas.