Find the minimum current level required in this operation

Assignment Help Mechanical Engineering

Reference no: EM131255758

The unit melting energy for a certain sheet metal is 9.5 J/mm³ . The thickness of each of the two sheets to be spot welded is 3.5 mm. To achieve required strength, it is desired to form a weld nugget that is 5.5 mm in diameter and 5.0 mm thick. The weld duration will be set at 0.3 sec. If it is assumed that the electrical resistance between the surfaces is 140 micro-V, and that only one-third of the electrical energy generated will be used to form the weld nugget (the rest being dissipated), determine the minimum current level required in this operation.

Reference no: EM131255758

Questions Cloud

Would slavery have been as big of an issue to stamp out : Should Eli Whitney's Cotton Gin be blamed for the extension of slavery in America? If technology had not improved, or if "King Cotton" had not been profitable, would slavery have been as big of an issue to stamp out?

Determine the power-on time the current must be applied : It is assumed that 1/4 of the energy generated from the power source will be used to form the weld nugget. Determine the power-on time the current must be applied in order to perform this spot-welding operation.

How the problem developed or came into existence : Describe background information on how that problem developed or came into existence. Show why this is a societal problem, and provide perspectives from multiple disciplines or populations.

What are the challenges facing louis vuitton : I need 1 page written answering the following question. Question - What are the challenges facing Louis Vuitton

Find the minimum current level required in this operation : If it is assumed that the electrical resistance between the surfaces is 140 micro-V, and that only one-third of the electrical energy generated will be used to form the weld nugget (the rest being dissipated), determine the minimum current level r..

Develop performance standards for the shift workers : Develop performance standards for the shift workers, identify appropriate methods of performance appraisal, and develop appropriate training to help get them back on track.

Find rate of heat liberated during combustion : An oxyacetylene torch supplies 8.5 ft3 of acetylene per hour and an equal volume rate of oxygen for an OAW operation on 1/4 in steel

Create the tables and relationship in access : If you were given an ERD that contained a M:N relationship between orders and products, what would you need to do in order to create the tables and relationship in Access?

Did the author forget to include other information : Were there information in the article that you did not know prior to the article? What were those information? What else was missing from the paper? Did the author forget to include other information? Did you agree or disagree with the information pr..

User Account

All Pages