Stick welding is very versatile when it comes to polarity. Most welding processes use DCEP to set up welding leads. In DCEP setup, electrons leave the work piece and flow towards the stick welding rod because the work leak is connected to the stick welding welder’s negative terminal.
When the electrons come in contact with the positive electrode, a great amount of heat is produces therefore the heat generated on the electrode is close to two thirds of the welding heat that is accumulated on the metal piece.
On the other hand, in DCEN the heat generated on the work piece is two thirds while on the electrode is a third. This is because the electrons flow from the stick welding rod to the metal piece.
For you to choose a welding setup, you need to understand that every setup has its application and advantages and disadvantages. The type of electrode you use determines the connection you will use for your project. DCEP produces deep penetration but the deposition of the electrode is high on DCEN therefore DCEP is suitable on thick metals because if used on thin metals it will tear down the metal. DCEN produces less heat on the electrode therefore the penetration is less compared to DCEP. If you have thin metals that you want to weld, use DCEN connection to weld.