Friday, May 6, 2011

Re: [MW:10979] RE: 10970] heat input calculation

Dear All

i notice that there is an important piece of formula is missing. the heat input formula given by Firman shall be multiplied by efficiency which is depending on its welding process. GMAW & SAW having efficiency 0.9, GTAW=0.8, SMAW=0,75

rgds

2011/5/6 muthusrinivasan muthuselvam <msms2k@gmail.com>
conversion factor to convert the travel time to mm/sec


On Fri, May 6, 2011 at 1:46 PM, Martin Prad <martin_prad@hotmail.com> wrote:
what is 60 (V*I*60) in this formula?
 

From: vinod.kataria@blissanand.com
To: materials-welding@googlegroups.com
Subject: [MW:10974] RE: 10970] heat input calculation
Date: Fri, 6 May 2011 13:00:05 +0530

You can calculate by using following formula:-

 

Heat Input = (V*I*60)/(Travel Speed in mm) this will come in J for KJ please further devide it with 1000.

 

For the below value the Heat Input shall be

0.50 KJ.

 

With kind regards,

Vinod Kumar Kataria

GM - Operations

Bliss Anand Private Limited,

92B/93B Sector 5

IMT Manesar,Gurgaon,

National Capital Region Delhi.

India .

Phone : +91-124-4366000 (9 Lines)

Mobile Phone : +91-9560199004

Fax : +91-124-2290884

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Martin Prad
Sent: Friday, May 06, 2011 11:00 AM
To: materials-welding@googlegroups.com
Subject: [MW:10970] heat input calculation

 

gents,
 
how to calculate the heat input in KJ/mm if i have got the folowing parameters?
 
Amperage=71
Voltage=9.5
Travel speed=3.2 inch/minute
can you please put these in the formula?
 
thanks.

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