CALCULATE WELDING CONSUMABLE FOR A ITEM

HOW TO CALCULATE WELDING CONSUMABLE FOR Any  ITEM

FORMULA FOR CALCULATION OF WELDING CONSUMABLE -

W = A x e x L X 1/E

A = cross-sectional area of weld metal deposited
e = density (7.8gr/cm3)
L = length of welding (cm)
E = deposition efficiency (n)           for SMAW- 0.55 to 0.80
                                                              MIG- 0.95
                                                           FCAW- 0.90
                                                             SAW-  1.0

FOR EXAMPLE A WELD OF L= 100 CM AND SINGLE V GROOVE AND ROOT FACE F= 3MM, ROOT GAP R= 2MM, BEVEL ANGLE 60 DEGRE, PLATE THICKNESS T=10MM
PROCESS = SMAW

WELDING POSITION EN ISO

WELDING POSITION AS PER EN ISO- 6947:2011

KEY:

PA          flat position

PB          horizontal vertical position horizontal position

PC          horizontal position

PD          horizontal overhead position

PE          overhead position

PF          vertical up position

PG         vertical down position

PH         pipe position for welding upwards    
PJ           pipe position for welding downwards

                                                                                                                                 

 

                                                                                                                     

                                                                                                                         

                                                             

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EARN

FROM 750 TO 1.25L/M

Grouping system for steels

Group system for steel  

Group 1:

              Steels with a specified minimum yield strength ReH ≤ 461 N/mm²  a and with analysis in %: C ≤   0.24, Si ≤ 0.60, Mn ≤1.70, Mo ≤ 0.70b, S ≤ 0.045, Cu ≤ 0.40b, Ni ≤ 0.5b, Cr ≤ 0.3 (0.4 for castings) b, Nb ≤ 0.05, V ≤ 0.12b, Ti ≤ 0.05.

PROCEDURE FOR STORAGE OF WELDING CONSUMABLE

COATED ELECTRODE

Store electrodes always in original reclosable cans and re-close the can after taking out the electrodes. Ultra Dry III vacuum packed electrodes can be used for approximately 6.1 hours after opening the packaging without re-drying; the atmospheric conditions must be ≤36°C and ≤91%RH.

When electrodes out of the original packaging are exposed for more than 8 hours to an atmosphere with a relative humidity of ≥61%, re-drying is recommended.

For electrodes with a yield ≥461MPa, the recommendation is a maximum of 2.5 times re-drying.

Developer Tab in Excel

ACTIVATE DEVELOPER TAB IN EXCEL

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CE MARKED ELECTRODES

CE MARKING AND APPROVAL FOR WELDING CONSUMABLES

CE marking gives you the warranty that the goods are delivered within traceability and quality system that is witnessed by a notified body and confirms to the latest European standards (EN 13479). The CPD / CPR number enables the notified bodies to trace the final source of the product to make sure that the whole supply chain is controlled and full fills the latest EN rules.

ISO 3834 MANUAL PREPARATION GUIDE LINE

ISO:3834 MANUAL PREPARATION GUIDE LINE

LOGO	YOUR FIRM’S NAME	M
	WELDING MANAGEMENT     SYSTEM MANUAL	Issue No. 1 ISO: 3834-2005

    YOUR FIRM’S NAME

ISO 3834 -Welding Manual For Quality Requirements For Fusion Welding

of Metallic Materials

सहस्त्रवार सैंथवार मल्ल छत्रिय समाज

पारिवारिक  मिलन  समारोह   सहस्त्रवार  (सैंथवार - मल्ल ) छत्रिय  समाज

ईएन नं 15085 2 के अनुसार वेल्डिंग

Procedure for certification of a manufacturer for welding railway vehicle and component according to 15085-2

ISO 15085-2  ऑडिट,

ईएन नं - 15085-2 के अनुसार वेल्डिंग, रेलवे वाहनों और उसके पार्ट्स  के लिए एक निर्माता के प्रमाणीकरण की प्रक्रिया है। 

परिचय

EN  नं -15085-2 "रेलवे एप्लिकेशन - रेलवे वाहनों और उसके पुर्जो की वेल्डिंग - भाग 2: वेल्डिंग निर्माता की गुणवत्ता की आवश्यकताएं और प्रमाणन" वेल्डिंग निर्माताओं का प्रमाणन प्रौद्योगिकी के आम तौर पर स्वीकृत नियमों पर आधारित है। EN  15085-1 से EN  15085-5 मानकों की श्रृंखला का उपयोग होता है. कई प्रकार के वेल्डिंग सुविधाओं वाले एक वेल्डिंग निर्माता को प्रत्येक सुविधा के लिए एक अलग प्रमाण पत्र की आवश्यकता होती है जब महत्वपूर्ण आवश्यक शर्तें जिस पर यह दी गई थी, अब मौजूद नहीं है तो प्रमाण पत्र अमान्य हो जाता है. 

NEW YEAR 2020 QA-QC BYUNS

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26-01-2020

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2021

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vba videos, excel-vba based videos

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Welding and NDT

WELDING AND NDT

WHY WE NEED NDT IN WELDING INSPECTION?
To find out welding defects in welding without destroying it is an NDT technique.

WELDING DEFECTS AND DISCONTINUITIES-
During the welding operation, many unavoidable volume changes occur that may cause
distortion, residual stresses or even cracking in the weldment. These changes are due largely to thermal expansion or contraction of the metal. If the rigidity of the structure Is high because of the stiffness of the members themselves, or support of previous welding or the use of fixtures, the amount of warping will be small. The forces set up by the weld contraction, however, will reach high levels by the time room temperature is reached. Cracking may result while the metal Is still hot or during cooling. Thus, the more highly con-strained the joint to be welded, the more plastic must be the weld metal that is used to complete the joint.