Classification based on mode of welding, Mechanical Engineering

Classification Based on Mode of Welding

Manual welding: In this welding the entire welding operation is performed and controlled by hand. Here, there are two movements involved. One is the feeding of the electrode and the other is for the welding speed. If both  process are done by hand then it is called manual welding.

Semi - automatic welding:  Here instead of stick electrodes, wire electrode is used. The wire is in the form of spool and the wire is drawn and fed by the motorised wire feeder into the welding torch. The welder gives only the welding speed. Since, the wire feeding is automatic and the welding speed is manual, this type of welding process is called semi - automatic welding process. MIG welding is an example of semi - automatic welding.

Mechanised welding: Welding with the equipment, which performs the welding operation under the constant observation and control of an operator. Motors control both wire feeding and the welding speed in mechanised manner. The equipment may or may not perform the loading and unloading of  work. SAW is an example of mechanised welding. Here, the welder is called machine operator.

Automatic welding: Welding with equipment, which performs the entire welding operation without constant observation and adjustment of the controls by an operator. Welding Robots are coming under this category. In robotics, there are many classifications. Cartesian type, cylindrical type, polar type and jointed arm type is one classification based on type of movement. Ordinary robot or intelligent robots, which can see and carry out the job by it, is another classification.

 

Robots: There are over 200,000 robots are in use in Japan alone. In India there are just over 10000 robots are in use, mainly due to availability of huge manpower. But it is expected that the number of robots employed in India also will increase considerably as the demand for higher productivity and quality is fully realised by the Indian industries nowadays, especially in the automobile sector. Lights off manufacturing is a new method where the production is done without any manpower and it is practised in Japan now.

 

 

 

Posted Date: 9/13/2012 3:41:17 AM | Location : United States







Related Discussions:- Classification based on mode of welding, Assignment Help, Ask Question on Classification based on mode of welding, Get Answer, Expert's Help, Classification based on mode of welding Discussions

Write discussion on Classification based on mode of welding
Your posts are moderated
Related Questions
how can i calculate tractive effort for jet ski to start move and how much power necessary ?

work done by an impulse turbine

Currency Bull Spread and Bear Spread: A currency bull spread is constructed by buying a call option for a particular underlying currency and simultaneously writing a call opti

Process for solve screw conveyer problem For fully automatic extension of screw conveyer according to screed width we have to go for some design changes, At the end of main

Disc clutch friction warpage: Place the disc clutch friction on the surface plate and check for warpage.

Find out the number of revolution: A flywheel of mass 20 kg and radius 100 mm is made to rotate at 600 RPM. Determine the KE of the flywheel. If the frictional couple at its b

Understanding the Role of Ownership : Before starting a business, entrepreneur should know what is involved in owning a business and what are the roles one will have to play to st

Work - thermodynamics: The work can be defined as follows: "Work is defined as energy transferred across the boundary of a system due to an intensive property difference ot

draw the projection of hexagonal prism of base side 20mm & axis length 50mm. when it is lying on the ground on one of its rectangular phase and axis is inclained 35 degree to vp. s

Throttle Valve: The throttle valves control the quantity of mixture supplied to the cylinder. This is controlled by throttle grip with the help of a cable. When we open throttle