On 12/20/11, Paresh Katvi <pkatvi@gmail.com> wrote:
> Please control your travel speed of Job and try to do fore hand technique.
> Regards
> PRK
>
> On 12/18/11, S C Balawat <scb12345@gmail.com> wrote:
>>
>> Good morning group members ,
>>
>> I would like to know your experience in Mig welding with TBi TD 20 Tandem
>> torch of TBI industries . We are experiencing problems like burn through,
>> excessive spatters, undercut in the welds. Weld is fillet of 10 mm. We
>> simultaneously weld two fillets using robots. Job rotates in vertical
>> plane
>> and the robots are stationary . We are unable to stabilize the weld
>> quality
>> . Thickness of the at the joint is 10 mm and 14 mm in one weld joint and
>> in
>> another it is 10 mm and 12 mm.Welding gas is 90/10 argon / CO2.Power
>> source
>> is "power wave robotic 655 " of Lincoln Electric
>>
>> We are using 1.6 mm solid wire in the leading torch and 1.2 mm in the
>> following torch . Weld parameters are 400amps/28 volts and 360amps /27
>> volts
>> respectively.weld wire is ER70S-6 in Marathon spools. Weld wire is ESSAB
>> make .Material of the joint members is AISI 1020.
>>
>> I look forward to your comments /suggestions.
>>
>> Regards,
>>
>> S C Balawat
>>
>>
>> Sent from my iPad
>>
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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 w.r.t. applicable code/standard/contract documents.
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