Can we use bronze as an electrode material in resistance welding?

The electrical conductivity of bronze is lesser than copper but its still higher than that of steel with good mechanical properties. Why it could not be a successful replacement for copper electrodes?

31 December 2017 5,809 2 View

Why the trailing electron in the cooper pair doesnot cause any lattice distortion?

Only two electrons act in a co-ordinated way. Why this is not extended to an infinite chain of electrons?

02 March 2017 1,558 1 View

Why mercury is liquid at room temperature?

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31 December 2016 7,430 0 View

Why Cathodic cleaning or sputtering is ineffective in SMAW / GMAW?

Cathodic cleaning which takes place in GTAW with AC polarity helps in welding reactive metals as during DCEN cycle the surface oxide layer gets cleaned and during DCEP cycle welding takes place....

11 December 2016 8,565 1 View

How an arc gets initiated in Submerged Arc Welding (SAW) process?

The thin air column gets ionised which creates a bridge for the transfer of charged particles from electrode to workpiece and vice versa. This creates an arc. This concept holds good for SMAW,GMAW...

09 October 2016 8,914 1 View

Why DCEN is preferred over DCEP for FCAW?

09 October 2016 9,515 2 View

For calculating form factor in an electroslag welding process how width and depth are practically measured?

Form factor = width of the molten metal/depth of the molten metal & higher form factor gives good resistance from cracking. But how the width & depth are measured in practise?

09 October 2016 3,373 1 View

Why do we prefer constant current power source for Submerged arc welding (SAW) process?

Constant voltage power source is said to have better control over the parameters in a mechanised process. But still why do we prefer CC power source for SAW?

09 October 2016 6,698 6 View

What kind of heat treatments are done to the weld joint after electroslag welding?

Since the cooling is very slow, we get coarse grained weak weld region. isnt? The plates that are joined are huge structures. So are they subjected to any kind of local heat treatment (Induction...

09 October 2016 3,825 2 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View