Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Effect of the parameters in spot welding
The passage of more current than what is required causes the following defects.I. Weld expulsionii. Cavitationsiii. Weld crackingiv. Reduced mechanical propertiesv. Electrode embedment in the surfaceOn the other hand, less current results in:i. Requirement of oversized electrodes.ii. Reduction in the weld properties.iii. Unfused interface.Higher pressure causes
A. Lowering of contact resistance and hence less heat generated.B. High distortion as against the following defects due to less pressure:
C. Expulsion of metal from within the weld along with more weld time results in:
The uniformity of the weld depends on the cleanliness of the surface.Rough estimates of parameters are given by hand books for different materials and thicknesses. Based on these values trials can be conducted on the welding machine available in order to fix the exact parameters, as the parameters vary slightly from machine to machine in the case of resistance welding.When two plates of two different thicknesses are to be welded, the weld nugget grows towards the thicker side. When two plates of different electrical conductivities are resistance welded, the weld nugget grows towards the higher resistivity side. In the above two cases, the upper and lower electrodes of different diameters, are to be chosen.
TO FIND THE MAGNITUDE OF CRANK SHAFT
Draw BCC structure and determine its number of atoms per unit cell, co-ordination number and highest edgeradius relation. Draw FCC structure and determine its number of atoms pe
#draw a net sketch of the geometry of a single point tool.
what is gatted pattern
Spanners: These are used to tighten and loosen nuts and bolts. These are made according to standard nut and bolt sizes and in vanadium steels. The following types of spanner are u
A pressure vessel is to be treated to generate compressive residual stresses on it inner surface. This involves increasing the pressure until taking 75% of the wall thickness goe
Molecular Structure The polymers have three distinct arrangements of molecular chain, hence resulting in three structures. In amorphous structure the molecular chain are ar
Working Chamber of EBW The chamber is usually rectangular in shape and has heavy windows to permit viewing the work. Both high voltage machines and low voltage machines
cases of equilibrium with explaination
Determination of Reaction at the Support beam: Draw a SFD & BMD for the beam illustrated in Figure Figure Solution Determination of Reaction at the Support
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd