Applications with medium laser power, Mechanical Engineering

Assignment Help:

Applications with Medium Laser Power

 

Several laser welding applications have recently evolved in this power range of 1 to 10 kW. Because, the laser provides a basis for cost effective, high volume production, strong interest has centered around applications in the automotive industry. An example of the advantages of laser welding for automotive production is provided by a description of the automatic underbody welding system developed for the Ford Motor Company. The laser remain stationary and motion of the output beam is provided in four degrees of freedom by a combination of moving mirrors. Beam translation along horizontal and vertical axes is achieved by moving a turning mirror and the focus head along horizontal and vertical tracks. Two rotational degrees of freedom for the beam are provided by a unique focusing system employing a 90 ° - off - axis, parabolic mirror. The ease with which the beam may be directed with this optical arrangement, coupled with a longitudinal degree of freedom obtained by moving the automotive under body, facilitates welding over the complex contours associated with the various humps and ridges of the underbody. With this system, penetrations of 2.5 mm have been achieved at speeds greater than 5 m /min and penetrations of 1.5 mm have been achieved at speeds near 12 m / min.

This welding performance allows up to 60 underbodies to be welded per hour on an assembly line basis. A lap weld is formed, which provides a strong, continuous joint and further seals the joint area such that a secondary sealing process (required for spot welding) is eliminated. The flexibility of the computer controlled system allows welding parameters for a number of different underbody designs to be stored, in the central computer memory and selected as required. The underbody welding offers striking proof of the ability of the laser to produce high speed weld in large, complex parts.


Related Discussions:- Applications with medium laser power

Evaluate the temperature gradient in the flow direction, A plane wall (ther...

A plane wall (thermal conductivity = 10.2 w/m o c) of 100 mm thickness and area 3m 2 has steady surface temperature of 170 o c and 100 o c. Evaluate :- (i) The temperature

Concept of process - thermodynamics, Concept of process - Thermodynamics: ...

Concept of process - Thermodynamics: A process can be defined as change in the state or condition of a substance or working medium. For instance, heating or cooling of thermod

Surging, what is surging in turbo machines subject

what is surging in turbo machines subject

Explain the tool angle, What is Tool Angle? The several angles influenc...

What is Tool Angle? The several angles influence tool performance to a considerable extent & therefore their value should be selected with great care & consideration. a) It

Light, what are the anti refection coating.expretion for thicknessrefractiv...

what are the anti refection coating.expretion for thicknessrefractive index of coating material to act as anti reflacting coating

IC Engine, why can''t we use petrol as a fuel for diesel engines?

why can''t we use petrol as a fuel for diesel engines?

Evaluation of heat required - thermodynamics, Evaluation of heat Required: ...

Evaluation of heat Required: Heat which is required to generate steam is different from 'total heat' or enthalpy of steam. Heat required for generating steam means heat needed

Ordinate dimensions-autocad, Ordinate Dimensions Ordinate dimensions ar...

Ordinate Dimensions Ordinate dimensions are not really a dimensions at all in that they did not indicate a measurement aur dimensions. Rather they annotate known co-ordinate po

Future trends, Future Trends Ceramics and glasses contain wide ranging ...

Future Trends Ceramics and glasses contain wide ranging applications in domestic use and even wider application in manufacturing technology. The properties that are related wit

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd