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The Definition of Tungsten Inert Gas Welding - 0 views

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welding process techiniques TIG GTAW tungsten inert gas

shared by ahmad subahman on 06 Oct 09 - Cached

ahmad subahman on 06 Oct 09

Tungsten inert gas welding is a constant current drooping arc process. It is also known as TIG, gas tungsten arc welding - GTAW, wolfram inert gas - WIG, and under the trade names of argon arc and heli arc.

<div class="cArrow"> </div><div class="cContentInner">Tungsten inert gas welding is a constant current drooping arc process. It is also known as TIG, gas tungsten arc welding - GTAW, wolfram inert gas - WIG, and under the trade names of argon arc and heli arc.</div>

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SMAW Weld Defects and Causes. - 0 views

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welding techiniques defects SMAW

shared by ahmad subahman on 05 Oct 09 - Cached

ahmad subahman on 05 Oct 09

Lack of fusion/penetration cause by : Too large an electrode for weld preparation. Incorrect angle of electrode for weld preparation. Current too low. Travel speed too high etc

<div class="cArrow"> </div><div class="cContentInner">Lack of fusion/penetration cause by : Too large an electrode for weld preparation. Incorrect angle of electrode for weld preparation. Current too low. Travel speed too high etc</div>

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Effect Of Variation In Procedure (SMAW) - 0 views

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welding techiniques SMAW MMAC stick weld procedure

shared by ahmad subahman on 05 Oct 09 - Cached

ahmad subahman on 05 Oct 09

Too short an arc length will cause irregular piling of the weld metal. The ripples will be irregular in height and width.

<div class="cArrow"> </div><div class="cContentInner">Too short an arc length will cause irregular piling of the weld metal. The ripples will be irregular in height and width.</div>

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BS 499 Welding Positions - 0 views

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welding position techniques BS499 flat horizontal vertical overhead

shared by ahmad subahman on 05 Oct 09 - Cached

ahmad subahman on 05 Oct 09

Positional welding (other than flat) often relies on arc force and surface tension effect; therefore the welding position may affect the mechanical properties of the weld and the likelihood of defects.

<div class="cArrow"> </div><div class="cContentInner">Positional welding (other than flat) often relies on arc force and surface tension effect; therefore the welding position may affect the mechanical properties of the weld and the likelihood of defects.</div>

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The Definition of Manual Metal Arc Welding - 0 views

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welding techiniques manual metal arc SMAW

shared by ahmad subahman on 04 Oct 09 - Cached

ahmad subahman on 04 Oct 09

Manual metal arc (MMA) welding, also known as shielded metal arc welding (SMAW), stick, and electric arc welding is a constant current drooping arc process.

<div class="cArrow"> </div><div class="cContentInner">Manual metal arc (MMA) welding, also known as shielded metal arc welding (SMAW), stick, and electric arc welding is a constant current drooping arc process.</div>

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How to Identification OF ELECTRODES (EN 499) - 0 views

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welding consumables electrodes EN 499 strength

shared by ahmad subahman on 04 Oct 09 - Cached

ahmad subahman on 04 Oct 09

The identification of covered electrodes in EN 499 is as follows:Covered electrode, strength, Toughness, Chemical composition, covering, efficiency, positional capability, low hydrogen potential

<div class="cArrow"> </div><div class="cContentInner">The identification of covered electrodes in EN 499 is as follows:Covered electrode, strength, Toughness, Chemical composition, covering, efficiency, positional capability, low hydrogen potential </div>

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Type od Welding Electrode - 0 views

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welding consumable electrode fillermetal

shared by ahmad subahman on 03 Oct 09 - Cached

ahmad subahman on 03 Oct 09

A general purpose electrode, which gives the best appearance and is easy to use. Drying - easy. 1000C for one hour and stored at ambient for shelf life.

<div class="cArrow"> </div><div class="cContentInner">A general purpose electrode, which gives the best appearance and is easy to use. Drying - easy. 1000C for one hour and stored at ambient for shelf life.</div>

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What is Welding Consumables ? - 0 views

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welding consumables electrode flux wire

shared by ahmad subahman on 02 Oct 09 - Cached

ahmad subahman on 02 Oct 09

Welding consumables are: Electrodes. Wire (lengths or rolls). Fluxes. Gases. Each consumable is critical in respect to: Specification / supplier. Condition. Treatment (if any).

<div class="cArrow"> </div><div class="cContentInner">Welding consumables are: Electrodes. Wire (lengths or rolls). Fluxes. Gases. Each consumable is critical in respect to: Specification / supplier. Condition. Treatment (if any).</div>

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The Factors to be considered in Welding Repair - 0 views

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weldingrepair repair fillet factors welding

shared by ahmad subahman on 02 Oct 09 - Cached

ahmad subahman on 02 Oct 09

Before a welding repair is carried out the need for repair must be carefully considered. If a component or structure contains defects of a known size, whether these are fabrication or service defects,

<div class="cArrow"> </div><div class="cContentInner">Before a welding repair is carried out the need for repair must be carefully considered. If a component or structure contains defects of a known size, whether these are fabrication or service defects,</div>

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DYE PENETRANT INSPECTION - 0 views

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welding NDE NDT non destructive testing dye penetrant

shared by ahmad subahman on 01 Oct 09 - Cached

ahmad subahman on 01 Oct 09

A special dye is applied to the surface of the article to be tested. A suitable time interval allows it to soak into any surface defects. The surface is then freed from surplus dye and the dye in the crack revealed by either

<div class="cArrow"> </div><div class="cContentInner">A special dye is applied to the surface of the article to be tested. A suitable time interval allows it to soak into any surface defects. The surface is then freed from surplus dye and the dye in the crack revealed by either</div>

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GENERAL TECHNIQUES FOR TYPICAL REPAIRS - 0 views

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welding techniques general repair fillets repairs

shared by ahmad subahman on 01 Oct 09 - Cached

ahmad subahman on 01 Oct 09

The defect may be in a single run fillet weld requiring only a small amount of metal to be removed or it may be a large crack extending deep into parent metal.

<div class="cArrow"> </div><div class="cContentInner">The defect may be in a single run fillet weld requiring only a small amount of metal to be removed or it may be a large crack extending deep into parent metal.</div>

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Type of Defects which need to repair ! - 0 views

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welding defects fabrication failure service cracks

shared by ahmad subahman on 01 Oct 09 - Cached

ahmad subahman on 01 Oct 09

The repair of defects that occur during welding ranges from simple welding operations to improve weld profile to extensive metal removal and subsequent welding to rectify extensive cracking.

<div class="cArrow"> </div><div class="cContentInner">The repair of defects that occur during welding ranges from simple welding operations to improve weld profile to extensive metal removal and subsequent welding to rectify extensive cracking.</div>

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RADIOGRAPHY in Welding Inspection - 0 views

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weldinginspection NDE NDT radiography testing x-ray gamma-ray

shared by ahmad subahman on 30 Sep 09 - Cached

ahmad subahman on 30 Sep 09

Gamma rays, similar to X-rays but of shorter wavelength, are emitted continuously from the isotope. It cannot be 'switched off' so when not in use, it is kept in a heavy storage container that absorbs radiation. They pass through the work to be inspected.

<div class="cArrow"> </div><div class="cContentInner">Gamma rays, similar to X-rays but of shorter wavelength, are emitted continuously from the isotope. It cannot be 'switched off' so when not in use, it is kept in a heavy storage container that absorbs radiation. They pass through the work to be inspected.</div>

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MAGNETIC PARTICLE INSPECTION - 0 views

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welding inspection NDE NDT UT magnetic particle testing

shared by ahmad subahman on 29 Sep 09 - Cached

ahmad subahman on 29 Sep 09

The work is magnetized either by passing a current through it, or through a coil surrounding it. Defects on or near the surface disrupt the magnetic field (unless they are parallel to it)

<div class="cArrow"> </div><div class="cContentInner">The work is magnetized either by passing a current through it, or through a coil surrounding it. Defects on or near the surface disrupt the magnetic field (unless they are parallel to it)</div>

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ULTRASONIC INSPECTION - 1 views

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welding inspection NDT non destructive testing UT ultrasonic

shared by ahmad subahman on 29 Sep 09 - Cached

ahmad subahman on 29 Sep 09

Non Destructive Testing, Ultrasonic Testing : Type of operation:Manual or mechanized. Equipment:Main unit comprising pulse generator, display oscilloscope, probe (chosen to suit work).

<div class="cArrow"> </div><div class="cContentInner">Non Destructive Testing, Ultrasonic Testing : Type of operation:Manual or mechanized. Equipment:Main unit comprising pulse generator, display oscilloscope, probe (chosen to suit work). </div>

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General Cause Porosity, Overlap and Tungsten Inclusion - 0 views

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welding defects porosity overlap tungsten inclusion

shared by ahmad subahman on 27 Sep 09 - Cached

ahmad subahman on 27 Sep 09

Porosity. Is the result of gas being entrapped within the solidifying weld metal. Porosity will be present in a weld if the welding technique, materials used or condition of the weld joint promotes gas formation.

<div class="cArrow"> </div><div class="cContentInner">Porosity. Is the result of gas being entrapped within the solidifying weld metal. Porosity will be present in a weld if the welding technique, materials used or condition of the weld joint promotes gas formation.</div>

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Surface Cracks in welding - 0 views

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welding defects longitudinal transverse cracks imperfection welds

shared by ahmad subahman on 19 Sep 09 - Cached

ahmad subahman on 19 Sep 09

A crack is a linear discontinuity produced by fracture. Cracks may be longitudinal, transverse, edge, crater, centreline, fusion zone, underbead, weld metal or parent metal.

<div class="cArrow"> </div><div class="cContentInner">A crack is a linear discontinuity produced by fracture. Cracks may be longitudinal, transverse, edge, crater, centreline, fusion zone, underbead, weld metal or parent metal. </div>

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WELD DECAY IN AUSTENITIC STAINLESS STEELS - 0 views

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welds decay defects cracks welding austenitic stainless steel

shared by ahmad subahman on 14 Sep 09 - Cached

ahmad subahman on 14 Sep 09

Occurs in the HAZ due to the precipitation of chromium carbides. In the 5500C - 8500C range, the chromium leaches out of the grain and reacts with the carbon to form chromium carbides, due to the chromium having a greater affinity for carbon.

<div class="cArrow"> </div><div class="cContentInner">Occurs in the HAZ due to the precipitation of chromium carbides. In the 5500C - 8500C range, the chromium leaches out of the grain and reacts with the carbon to form chromium carbides, due to the chromium having a greater affinity for carbon.</div>

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THE FOUR ESSENTIAL FACTORS FOR ESTABLISHING A WELD - 0 views

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welding techniques essentials factor variable welds

shared by ahmad subahman on 13 Sep 09 - Cached

ahmad subahman on 13 Sep 09

Welding is usually regarded as a joining process in which the work pieces are in atomic contact often with a filler metal with broadly similar properties. Hence soldering and brazing are excluded but both solid state and fusion welding are included.

<div class="cArrow"> </div><div class="cContentInner">Welding is usually regarded as a joining process in which the work pieces are in atomic contact often with a filler metal with broadly similar properties. Hence soldering and brazing are excluded but both solid state and fusion welding are included.</div>

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Share knowledge,Inspection,NDT,welding procedures,process and techniques - 0 views

shared by ahmad subahman on 09 Sep 09 - Cached

ahmad subahman on 09 Sep 09

useful

<div class="cArrow"> </div><div class="cContentInner">useful</div>

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ahmad subahman on 09 Sep 09

we share about welding inspection tips,welding procedures and techniques for SMAW,MIG,TIG,FCAW,SAW and other welding process for stainlles steel and other alloys,equipments,welders,materials,inspector,NDT,NDE.

<div class="cArrow"> </div><div class="cContentInner">we share about welding inspection tips,welding procedures and techniques for SMAW,MIG,TIG,FCAW,SAW and other welding process for stainlles steel and other alloys,equipments,welders,materials,inspector,NDT,NDE.</div>

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The Definition of Tungsten Inert Gas Welding - 0 views

SMAW Weld Defects and Causes. - 0 views

Effect Of Variation In Procedure (SMAW) - 0 views

BS 499 Welding Positions - 0 views

The Definition of Manual Metal Arc Welding - 0 views

How to Identification OF ELECTRODES (EN 499) - 0 views

Type od Welding Electrode - 0 views

What is Welding Consumables ? - 0 views

The Factors to be considered in Welding Repair - 0 views

DYE PENETRANT INSPECTION - 0 views

GENERAL TECHNIQUES FOR TYPICAL REPAIRS - 0 views

Type of Defects which need to repair ! - 0 views

RADIOGRAPHY in Welding Inspection - 0 views

MAGNETIC PARTICLE INSPECTION - 0 views

ULTRASONIC INSPECTION - 1 views

General Cause Porosity, Overlap and Tungsten Inclusion - 0 views

Surface Cracks in welding - 0 views

WELD DECAY IN AUSTENITIC STAINLESS STEELS - 0 views

THE FOUR ESSENTIAL FACTORS FOR ESTABLISHING A WELD - 0 views

Share knowledge,Inspection,NDT,welding procedures,process and techniques - 0 views

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