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Re: [MW:17933] Reg:Welding Of copper to bronze

By Materials & Welding
Co2 will react with Tungsten electrode, do not use Co2 mixture in TIG.
if u use Argon alone, then u have to increase preheat temp and which
welder may not like it.
Pandithan
Welding Consultant

On 6/13/13, Avinash Pandey <avi7589@gmail.com> wrote:
> we are out of He and mixture are not available that why we have to
> find alternative.
> 1.Commercial argon
> 2.80%Ar20%CO2
>
> On 6/13/13, kannayeram gnanapandithan <kgpandithan@gmail.com> wrote:
>> Except joint area, cover other area with glass wool. use 80/20 He/Ar
>> or as Mr ramin said, use that.
>>
>>
>> On Thu, Jun 13, 2013 at 1:36 PM, Ramin Kondori <raminkondori@gmail.com>
>> wrote:
>>>
>>> No you can not.
>>> You should use He or Ar/He mixtures.
>>> More He you use, less preheat is required.
>>>
>>>
>>> On 6/13/13, Avinash Pandey <avi7589@gmail.com> wrote:
>>> > ok but just tell if we can weld copper to copper with 80%argon 20%
>>> > CO2.process GTAW
>>> >
>>> >
>>> > On Thu, Jun 13, 2013 at 12:00 PM, Ramin Kondori
>>> > <raminkondori@gmail.com>wrote:
>>> >
>>> >> I can't find it on internet. Would you mind telling us about the
>>> >> chemical analysis of this filler wire...?
>>> >>
>>> >> On 6/12/13, Avinash Pandey <avi7589@gmail.com> wrote:
>>> >> > filer wire is MNXHT 5-1-0,2-0,2
>>> >> >
>>> >> >
>>> >> > On Tue, Jun 11, 2013 at 12:04 AM, Ramin Kondori
>>> >> > <raminkondori@gmail.com>wrote:
>>> >> >
>>> >> >> *Dear Avinash:*
>>> >> >>
>>> >> >> What filler metal did you use...?
>>> >> >>
>>> >> >> *Ramin Kondori*
>>> >> >> *Sr. QA/QC Engineer
>>> >> >> *
>>> >> >> *SINOPEC*
>>> >> >>
>>> >> >> r.kondori@petroyada.com
>>> >> >> +98-2123592322
>>> >> >> +98-9132150320
>>> >> >>
>>> >> >>
>>> >> >> On Mon, Jun 10, 2013 at 3:48 PM, Avinash Pandey
>>> >> >> <avi7589@gmail.com>
>>> >> >> wrote:
>>> >> >>
>>> >> >>> Dear Expert
>>> >> >>>
>>> >> >>> I we are welding PQR with combination M3R(Copper) #
>>> >> >>> CA-104(bronze)
>>> >> using
>>> >> >>> commercial argon.We are successful in welding the combination but
>>> >> >>> the
>>> >> >>> UTS
>>> >> >>> value after testing is about 19.05 MPa,which is less as compared
>>> >> >>> to
>>> >> >>> the
>>> >> >>> UTS
>>> >> >>> of both the material So the PQR is failed in tensile testing.
>>> >> >>>
>>> >> >>> Please suggest solution for the mentioned problem or if anybody
>>> >> >>> had
>>> >> done
>>> >> >>> the same combination please forward the details.
>>> >> >>>
>>> >> >>> Technical details:
>>> >> >>> 1.Chemical composition
>>> >> >>>     M3R:Cu-bal.,Ni-0.2,Fe-0.027
>>> >> >>>
>>> >> >>>
>>> >> CA-104-Cu-bal.,Zn-0.041,Al-9.78,Ni-5.21,Si-0.042,Mn-0.32,Fe-4.86,Sn-0.024
>>> >> >>> 2.Preheat
>>> >> >>>    Preheating is done only on M3R side up to 300C
>>> >> >>>
>>> >> >>>
>>> >> >>>  --
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>>> >> >> The views expressed/exchnaged in this group are members personel
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>>> >> >
>>> >> > --
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>>> >> >
>>> >> http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
>>> >> >
>>> >> > The views expressed/exchnaged in this group are members personel
>>> >> > views
>>> >> and
>>> >> > meant for educational purposes only, Users must take their own
>>> >> > decisions
>>> >> > w.r.t. applicable code/standard/contract documents.
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>>> >> >
>>> >>
>>> >>
>>> >> --
>>> >> *Ramin Kondori*
>>> >> *Sr. QA/QC Engineer
>>> >> *
>>> >> *SINOPEC*
>>> >>
>>> >> r.kondori@petroyada.com
>>> >> +98-2123592322
>>> >> +98-9132150320
>>> >>
>>> >> --
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>>> >>
>>> >> The views expressed/exchnaged in this group are members personel
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>>> >
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>>> >
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>>>
>>>
>>> --
>>> *Ramin Kondori*
>>> *Sr. QA/QC Engineer
>>> *
>>> *SINOPEC*
>>>
>>> r.kondori@petroyada.com
>>> +98-2123592322
>>> +98-9132150320
>>>
>>> --
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>>>
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>>
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>>
>> The views expressed/exchnaged in this group are members personel views
>> and
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>>
>
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>
> The views expressed/exchnaged in this group are members personel views and
> meant for educational purposes only, Users must take their own decisions
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