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.
List out the Types of fixtures? Milling fixtures Lathe fixtures. Grinding fixtures Broaching fixtures Assembly fixtures Inspection fixtures Boring f
Corner joint- The flush corner joint is designed primarily for welding sheet metal that is 12 gauge or thinner. It is restricted to lighter materials. The half-open corner join
Carbon Monoxide: If the engine has to be started make sure the area is well ventilated. Never start the engine in an enclosed area without using the exhaust duct, since exhaust g
Q. Hot Service Insluation Thicknesses? Hot Service Insluation Thicknesses are specified based on the following design criteria: • Average Annual Climatic Conditions:
The cross-section of two angles attached together are shown on the left below. The properties of angles are given in the table with reference to the diagram on the right. The ma
A converging elbow (see Figure 4) turns water through an angle of 135 o in a vertical plane. The flow cross-section diameter is 400 mm at the elbow inlet, section (1), and 200 mm
Determine the process of modelling The process of modelling is much easier, if mathematical description of an object, or at least of part of an object may be applied. In the fi
three vertical, parallel straight rods, each 2.6m in length have their upper ends firmly secured and their lower supporting a rigid horizontal bar with a weight of 8KN, which cause
Slip-On Flanges Slip-on flanges are limited to use under the following conditions: ASME/ANSI B16.5 standard forged flanges for design pressures and coincident temperatures n
Branches of mechanics: Mechanics is basically divided in to two parts Static's and Dynamics, Dynamics is further divided in kinematics and kinetics Statics: It deals with
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