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!
Flash Butt Welding
The two pieces to be welded are pressed against each other by applying a pressure. To whatever finish the faces are machined, there will be some protuberances which cause contacts. Because of the bridges present, when a high welding current is passed, a high current density results at the contact surface. The bridges get heated upto molten conditions since one work piece is slowly advancing towards the other. After the faces attain a plastic stage upsetting pressure is applied. The molten metal and some of the impurities associated with it are expelled. Depending on the material and contact area preheating and post heating may be warranted.A typical flash butt welding sequence will comprise the following steps. Load machine - clamp work - apply preheating force - preheat - Release preheat force to separate work pieces Contact Contact parts lightly for flashing - apply welding voltage - Flash at high voltage Flash at normal voltage - Cut off welding current - pass up set current - Upset - Cut off upset current - Reclamp and post heat - Pinch off and shear die operation Unclamp work - Return platen and unload.
material properties
Determine the Brake power of an Engine which is running at a fixed speed of 300 r.p.m. and carries a rope brake Dynamometer. The Dead weight on the spring balance and engine readin
Solving example by this method
Determine the angular acceleration of the motion: A flywheel of mass 15 kg and radius 20 cm is wound by a rope that carries a weight A of mass 5 kg at its free end as illustra
Working of Impulse turbine: The technique in which multiple system of rotors are keyed to a common shaft, in series and the steam pressure of jet velocity is absorbed in stage
Inspection of Fasteners: The motorcycle carries number of nuts and bolts. They should be properly tightened for the smooth running of motorcycle. All fasteners are checked
Q. A wooden beam of the rectangular cross section is subjected to bending moment of 5KNm. If the depth of section is to be double the breadth and stress in wood is not to exceed 6
Torque of Multiple and Different Sized Fasteners: First tighten all fasteners by the help of free hand. Then torque big fasteners first followed by torque of smaller fasteners in
Q. What is Fusion Bonding? Fusion Bonding shall refer to the fusion bond coating process which utilizes heat to melt adhere the coating material to the metal surface. Fusion Bo
Components of power plant &it''s functions
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