RE: [MW:5593] Heat input Vs Weld size

The more energy we supply more metal will be melted, hence more volume. Pl refer the attachment for details
Recommended reading : AWS HB Vol1 - Welding Technology, Chapter 3 : Heat flow in Welding

-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of ali asghari
Sent: Tuesday, June 15, 2010 12:31 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:5591] NONESSENTIAL OR SUPPLEMETARY

Dear Bathula
i think ,these parameters may affect on total weld volume& total heat input.therefore affect on impact property.
i read in a book published by HARTFORD, that says heat input can be calculated based on weld volume( that's reasonable) other than formule in QW409.1.
DO YOU HAVE FORMULE FOR CALCULATING OF H.I BASED ON WELD VOLUME?
regards

On 6/14/10, ali asghari <asgharialigl@gmail.com> wrote:
> yes , it is true.
> but my intention is QW409.4 OR QW410.9 OR QW 410.10 are supplementary&
> non essential in same time.if the impact test isn't required, the
> supplementary are non essential.why botn of them are marked for the
> above variables?
> how them used?
> regard
>
>
> On 6/14/10, Bathula Raghuram (Mumbai - PIPING) <R.Bathula@ticb.com> wrote:
>> Supplementary essential variables shall become mandatory when impact
>> testing is required by design. and when there is a change
>> requalification is required.
>>
>> Non Essential variables may be revised on WPS, but requalification is
>> not necessary.
>>
>> ________________________________
>> From: materials-welding@googlegroups.com
>> [mailto:materials-welding@googlegroups.com] On Behalf Of Ali Asghari
>> Sent: Sunday, June 13, 2010 10:46 PM
>> To: materials-welding@googlegroups.com
>> Subject: [MW:5580] NONESSENTIAL OR SUPPLEMETARY
>>
>> Dear All
>> in QW 250-QW280 in ASME sec IX,SOME VARIABLES ARE NON ESSENTIAL &
>> SUPPLEMENTARY IN SAME TIME.e.g in current WHICH ONE SHALL BE
>> CONSIDERED?HOW INTERPRETED?
>> REGARD ADVANCES
>>

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