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!
Main Features of Laser Cutting Process
1) Laser cut kerf is very narrow resulting in material saving.2) Has very narrow heat affected zone (HAZ) and therefore gives low thermal distortion. Gives machine smooth cut surface reducing the need for subsequent trimming.3) The cut has square edges.4) There is no tool wear (contact free energy transfer).5) The work piece does not need holding against tool drag. Work holding demands are reduced to merely a locating role.6) Possible to cut through friable, brittle, soft or hard material or composites with ease.7) It is a non contact method with no cutting forces and is ideal for cutting flexible material such as clot h, rubber, corrugat ed cardboard, etc.8) Non directional, cuts equally well in all directions and can start cutting anywhere.9) Blind cuts can be made.10) The cutting speed is fast compared to other methods as the light beam is inertia less.11) Multistation operations from one laser are possible.12) It is easily automated by numerical control.There are five different ways, in which a laser can be used to cut different materials:a) Vapourisation: the beam energy heats the substrate to above its boiling point and material leavesas vapour and eject - this requires 10 times the energy of (b)b) Melting and Blowing: the beam energy melts the substrate and a jet of inert gas blows the melt out of the cut region - this requires around twice the energy of (c)c) Burning in reactive gas - the beam energy heats material to the kindling temperature, which then burns in a reactive gas jet; as in (b) the jet also clear the dross away - requires around 10 times energy of (d) for some materials.d) Thermal stress cracking or controlled fracturing - the beam energy sets up a thermal field in a brittle material ego glass such thatit can guide a crack in any direction.e) Scribing - variant on (a) whereby blind cut is used as a stress raiser allowing mechanical snapping along the scribed lines.
GAS TUNGSTEN ARC WELDING (GTAW) Gas Tungsten Arc Welding (GTAW) is popularly known as Tungsten Inert Gas welding (TIG). In this process, an arc is struck between a non consumab
Which three principal possible in radial drilling machine Between them the plain drill machine, three principal movements are possible in this type of machine, by vertical move
Driving mechanism I). Knurl or Friction Drive : This has either the upper or lower electrode (or both) driven by a friction wheel on the periphery of the electrode. A co
what is MIPLAN system
limitations of euler''s theory
Problem: (a) What is the best paper to use when printing metallic inks? Explain your answer. (b) A multiple page printed document such as a book, brochure or booklet needs f
Ductile mid brittle material: A material that can undergo large permanent deformation in tension, that is, it can be drawn into wires is called as ductile. A material which
CAUSES AND REMEDIES OF MOTORCYCLE PROBLEMS If Engine Overheats Causes of Problem Remedy Incorrect spark plug make/model
Q. Sewage Treatment? Unless located in a metropolitan area, it is common for plants to have sewage treatment facilities for disposal of sewage and grey water generated in the p
Derive the finite element formulation for a tapered bar element using Galerkin's method. 1- Start with. 2- Use and as shap
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