Metal transfer in co2 welding, Mechanical Engineering

Assignment Help:

METAL TRANSFER IN CO2 WELDING

In CO2 welding, two distinct types of metal transfers are identified viz. short circuiting transfer and free flight globular transfer.

Short Circuit Transfer: When the welding voltage and the current are low, the mode of metal transfer would be of short circuiting type. In short circuiting mode, metal transfer occurs from tip of the wire electrode to the job whenever the wire tip touches the weld pool. The arc is extinguished during the short circuit period and is re-ignited after the short circuit is cleared. Short circuiting transfer is used for joining thin sheets, welding out of position and root pass welding of tubes and pipes.

Free Flight Transfer:  When the arc voltage and current are high, the metal droplets are transferred non axially as large globules and this is called non axial free flight transfer. The non axial free flight transfer produces deep penetration. Hence, this mode of transfer is used for welding thick sections in down hand and horizontal positions.


Related Discussions:- Metal transfer in co2 welding

Define the primitives of b-rep scheme, Primitives of b-rep Scheme The b...

Primitives of b-rep Scheme The building blocks for b-rep. models are : Vertex It is a unique point (an ordered triplet) in space. Edge An edge is a finite, non-

Advantages of gas tungsten arc welding (gtaw), ADVANTAGES OF GAS TUNGSTEN A...

ADVANTAGES OF GAS TUNGSTEN ARC WELDING (GTAW) Produces high quality, low distortion welds Free from spatter The process can be used with or without filler wire This

Breakwater , Let consider the breakwater configuration shown in the figure ...

Let consider the breakwater configuration shown in the figure below. The incident wave conditions at the breakwater are a wave height of 1.5m, wave period of 7.0s and a wave crest

Determine the maximum stress developed in the beam, Determine the maximum s...

Determine the maximum stress developed in the beam: An I section in Figure is utilized as a beam. The beam is subjected to a bending moment of 2.5 kN m at its neutral axis. De

What is data unification, What is Data Unification To optimize the UPR ...

What is Data Unification To optimize the UPR data structures, during design we study the semantics of each data type of the supported CAD systems and identify data types that a

Remove cover left crank case and check for leakage, Remove cover left crank...

Remove cover left crank case and check for leakage: Before attending oil seal leakage check if any leak is there in the highlighted points - Neutral switch "o" ring leak, Shifter

Key words related to railway line, Keywords related to railway line: ...

Keywords related to railway line: Railway Station : A facility along a railway line where trains stop and passengers are serviced, and cargo is handled. Platform : A fa

Electron beam welding(ebw)-basic principle, BASIC PRINCIPLE OF ELECTRON BEA...

BASIC PRINCIPLE OF ELECTRON BEAM WELDING(EBW)   Electron beam welding which utilises a heat source of electrons which are accelerated by an electric field to mextremely high

Branches of mechanics, Branches of mechanics: Mechanics is basically d...

Branches of mechanics: Mechanics is basically divided in to two parts Static's and Dynamics, Dynamics is further divided in kinematics and kinetics Statics: It deals with

Relation between intensity bending moment and shear force, Relation between...

Relation between intensity bending moment and shear force: What is the relation between load intensity bending moment and shear force Consider the beam subjected to any t

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd