Describe the process and application of manual arc welding

Arc welding is the process of joining metal – steel in this case – using electricity. Rather than most other formats, which generally use gas, this process uses electricity to create enough heat to melt the metal and fuse it together during cooling. Chapter 1 – Arc welding safety 4 Electric shock Electrical principles and requirements for arc welding machines will be discussed in depth in Chapter 2 – Electricity and welding machines, however at this stage it is necessary to clarify some basic electrical terms. Term Definition voltage (V) the force which makes current flow.  · Submerged Arc Welding (SAW) SAW is an arc welding process. An arc forms between the moving electrode and the workpiece. We use flux as a shield of protection. The flux avoids oxidation and acts as a slag to protect the weld zone. This versatile process of welding uses for longitudinal and circumferential butt www.doorway.ruted Reading Time: 6 mins.

Also known as manual metal arc welding (MMA or MMAW), flux shielded arc welding or stick welding is a process where the arc is struck between the metal rod (electrode flux coated) and the work piece, both the rod and work piece surface melt to form a weld pool. Simultaneous melting of the flux coating on the rod will form gas, and slag, which protects the weld pool from the surrounding atmosphere. Chapter 1 – Arc welding safety 4 Electric shock Electrical principles and requirements for arc welding machines will be discussed in depth in Chapter 2 – Electricity and welding machines, however at this stage it is necessary to clarify some basic electrical terms. Term Definition voltage (V) the force which makes current flow. Arc welding is one of several fusion processes for joining metals. By applying intense heat, metal at the joint between two parts is melted and caused to intermix directly, or more commonly, with an intermediate molten filler metal. Upon cooling and solidification, a metallurgical bond is created.

Shielded metal arc welding is a welding process that makes use of a consumable electrode and either an alternating current is driven power. The process is alternately known as shielded metal arc welding and flux-shielded arc welding. WHAT IS STICK WELDING? Stick welding is a metal-. 4 Jan The process is used without application of pressure and with filler metal from the covered electrode. The sound weld metal deposited by the.