In this assignment we are supposed to describe a specific process. I have chosen the welding in shipbuilding simply because I have worked in shipbuilding industry for a while and I am not only describing the process I also understand this process quiet well.
When we speak about shipbuilding industry, welding is very important process. In order to protect the ship structure, the above mentioned process should be performed by the qualified welders and in the end to be controlled by the quality control engineers and Classification Societies (Lloyd's Register, Det Norske Veritas, etc.). All welders should have a certificate and the procedures should be prepared in the shipyards.
As we learned at Production Technology, a good method to create relationship between variables and process behavior is to do it through method of the fishbone diagram.
Below I created a fishbone diagram and I will describe it.
FISHBONE DIAGRAM
METHOD
There are several kinds of welding methods. Some of them we will describe below.
1. In shipbuilding, the most common technique is electric arc welding. Arc welding is one of several fusion processes for joining metals. In arc welding, the intense heat needed to melt metal is produced by an electric arc. The arc is formed between the actual work and an electrode (stick) that is manually or mechanically guided along the joint. A typical manual arc welding set-up we can see below.
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