Wire feeding unit-co2 welding, Mechanical Engineering


The wire electrodes are supplied as continues coils in wire spools. The solid wires are available in the following sizes 0.8, 1.0, 1.2, 1.6, 2.0 and 2.4 mm diameters. The wires normally would have an uniform and thin copper coating to facilitate easy current pick up. The copper coating also serves as good lubricant for the passage of the wire through the torch assembly. The consumable wire electrode is fed into the arc zone by means of the wire feed unit. The wire feed unit consist of a wire reel holder where the wire reel is mounted and a set of two or four rollers driven by a motor gear box assembly. The rollers draw out the wire from the wire reel and feed it smoothly into the torch assembly. The wire feed rate can be varied using the control knob. The roller pressure on the wire is to be suitably adjusted. The wire feed unit also contains a solenoid valve which regulates the flow of shielding gas into the torch assembly.

Posted Date: 9/17/2012 1:56:54 AM | Location : United States

Related Discussions:- Wire feeding unit-co2 welding, Assignment Help, Ask Question on Wire feeding unit-co2 welding, Get Answer, Expert's Help, Wire feeding unit-co2 welding Discussions

Write discussion on Wire feeding unit-co2 welding
Your posts are moderated
Related Questions
Q. Show Prevailing wind conditions for plant layout? Prevailing wind conditions influence the design considerations for the location of the flare or vent stack. It is vital tha

Determine reactions on compound beams: Determine reactions at the support A , B , C , and D for arrangement of compound beams shown in the figure given below.

Compaction This is carried out in several manners that might occupy the addition of a binder or lubricant and application of pressure. Sintering is densification of assembled

Illustrate the Centrifugal Clutch in Detail with neat sketch ? Illustrate the Electromagnetic Clutch in Detail with neat sketch ? Illustrate the Diaphragm spring Clutch in

Q. Explain Moulding Sand for Non-ferrous Casting? The melting point of non- ferrous metal is much lower than that of ferrous metals. Therefore, the moulding sands for non-ferr

Rope drive: What do you mean by the term rope drive? Sol: The ropes are circular in section. Rope-drive is mostly used when distance between the driving shaft and drive

Q. Plant layout and equipment spacing? Layout refers to the location of plants (and process/power units within the plants and associated utilities (or balance of plant)) as wel

Write a literature review on the manufacture and application of metallurgical cokes in Nigeria.

Calculate mean effective pressure of engine: A 4 stroke diesel engine is having length of 20 cm and diameter of 16 cm. The engine is generating indicated power of 25 KW when