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
Standard for External Representation of Product Data (STEP)  The furthest developed standard is by ISO 10303, or STEP, Standard for the Exchange of Product model data. One of t

What is the clear difference between gravitational potential and gravitational potential energy ? Ans) A body A of mass m is placed in the gravitational field of a body B of mass

Which type of cam is used in general 2 wheelers?and how the type of profile is determined?

A triangle ABC with vertices A (30,20), B(90,20), C(30,80) is to be scaled by a factor of 0.5 about a point X(50,40). Calculate :- (i) The composite transformation matrix; and

example on operation sheet?

Kennedy theorem

Magnitude and direction of force: Determine magnitude and direction of smallest force P which is required to start the wheel over the block. As shown in the figure. So

velocity acceleration by relative method and intentan methodto be showed graphical on it?

Q. Describe the Types of Gas Welding? Gas welding involves the use of a gas-fed flame torch to heat the metal work piece and the filler material to create a weld. The gas is

Explain lower pair. and kinematics chair