Posted by: wahid nawawi | September 17, 2012

How to Calculation or Formula Welding Lenght 1


Greetings to Our Readers …..

In this post I want to share knowledge about how to calculate the lenght of welding. This article may not be a standard formula … which obviously can be used as an additional reference your calculation because of some of the experiences I’ve met there are some formulas used to determine the welding lenght.

The primary key to determining the welding lenght; the first we have to find the amount of work volume we will calculate.

In this occasion I will share the experience of how to calculate the length for type welding welding as follows:

  1. Fillet Weld
  2. V-Groove Weld
  3. L-Groove Weld
  4. K-Groove Weld, and
  5. X-Groove Weld.

Welding lenght is very useful  is used as a parameter in addition to progress as a welding course to determine the estimated schedule, manpower, man hours, and others.

Let us discuss one by one of the 5 types of welding above.

1. Fillet Weld

Before we calculate welding lenght for type of welding fillet weld, the first we must calculate the work volume for Fillet Weld (convertion to fillet 6mm).

The Formula is:

Fillet Weld Volume = ((S² x 1.21)/2) /21.78

Unit for Fillet weld Volume is mm

The result of fillet weld volume from calculation convertion fillet to 6mm. After we find of work volume (fillet weld volume) than we can determine the amount of Welding Lenght Fillet Weld with below formula:

Formula of Welding Lenght Type Fillet Weld:

= Fillet Weld Volume x Lenght of Welding / 1000

or

= (((S² x 1.21)/2) /21.78) x Lenght of Welding / 1000

Where:

  • S = Thikness or Fillet Size (mm)
  • Fillet Weld Volume (mm)
  • Lenght of Welding (mm)
  • Welding Lenght Fillet Weld (m)

Notes:

Above calculation only for calculation welding lenght type single fillet weld (1F), if we used Double Fillet weld (2F) we only multiplyng the result of welding lenght by 2 (two).

Below is sample Table for  Result  Calculation convertion to fillet 6mm (Fillet Weld Volume) from each Fillet Size.

  1. Fillet Size 5mm –> Result after convertion fillet 6mm is 0.7mm
  2. Fillet Size 6mm –> Result after convertion fillet 6mm is 1.0mm
  3. Fillet Size 7mm –> Result after convertion fillet 6mm is 1.4mm
  4. Fillet Size 8mm –> Result after convertion fillet 6mm is 1.8mm
  5. Fillet Size 9mm –> Result after convertion fillet 6mm is 2.3mm
  6. Fillet Size 10mm –> Result after convertion fillet 6mm is 2.8mm
  7. Fillet Size 11mm –> Result after convertion fillet 6mm is 3.4mm
  8. Fillet Size 12mm –> Result after convertion fillet 6mm is 4.0mm
  9. Fillet Size 13mm –> Result after convertion fillet 6mm is 4.7mm
  10. Fillet Size 14mm –> Result after convertion fillet 6mm is 5.4mm
  11. and please continue to exercise

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Additional information:

If you exercise, may be any different result of value fillet weld volume (Convertion fillet 6mm).

Sample:

Please calculation or convertion to fillet 6mm (Fillet Weld Volume) for Fillet Size 10mm.

Answer:

Fillet Weld Volume = ((S² x 1.21)/2) /21.78

= ((10² x 1.21)/2) /21.78

= 2.77mm

So we can used Fillet weld volume 2.8mm.

==================================================

Sample Case Study:

1. Calculate the welding lenght if size of fillet 16mm and lenght of welding 2600mm?

Answer:

Welding Lenght 1F =

= Fillet Weld Volume x Lenght of Welding / 1000

= 7.1 x 12000/1000

= 18.5 m

2. Calculate the welding lenght if size of fillet 8mm and lenght of welding 12000mm with welding typy:

a. Single Fillet Weld (1F)

a. Double Fillet Weld (2F)

Answer:

a. Welding Lenght 1F =

= Fillet Weld Volume x Lenght of Welding / 1000

= 1.8 x 12000/1000

= 21.6 m

a. Welding Lenght 2F

= (Fillet Weld Volume x Lenght of Welding / 1000) x 2

= (1.8 x 12000/1000) x 2

= 43.2 m

To be continue to the next post……

Please yours advise if any mistake. Thanks so much….


Responses

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