Laser beam Machine: Defination,working principle,parts,types,application,advantage,disadvantage,limitation

Introduction:-

A laser beam machining is a non-conventional machining method in which the operation is performed by laser light. The laser light has maximum temperature strikes on the workpiece, due to high temp the workpiece gets melts. The process used thermal energy to remove material from a metallic surface.



Parts of Laser beam Machine:-

•Power supply
•Flash lamp
•Capacitor
•Reflecting mirror
•Lense
•Workpiece

Application of Laser beam Machine:-

•The laser beam machining process is used for making very small holes.
•Mass macro machining production.
•LBM is used in surgery.
•Selective heat treating of materials.
•Complicated welding of non-conductive and refractory materials.
•Micro-drilling operation.
•Photography in medical science.
•Spectroscopic Science.

Advantage of Laser beam Machine:-

•Any material can be machined including non-metal.
•The production rate is high.
•There is no direct contact between the tool and the work.
•There is no tool wear.
•No mechanical force on the work.
•The heat-affected zone is very small.
•Heat treated and magnetic materials can be welded, without losing their properties
.•Soft materials like rubber, plastic can be machined.
•Extremely small holes can be machined.

Disadvantage of Laser beam Machine:-


•The overall efficiency of Laser machining is very low.
•It is limited to thin sheets.
•The life of the flash lamp is short.
•It is not possible to remove a large number of metals.
•The machined holes are not round and straight.
•Not able to drill too deep holes.
•It’s having a high cost.
•A very low rate of metal-removing.


Comments

Post a Comment

Popular posts from this blog

Shaper Machine: Definition, Parts, Working, Mechanism, Operations, Types, Specifications

Image
Introduction:- it is a reciprocating type of Machine basically used for producing the horizontal, vertical,flat surface.The shaper holds the single point cutting tool in ram and workpiece is fixed in the table, during the return stock of metal cutting. parts of shper Machine:- •Base  •Column •Table •Cross rail •Ram •Clapper Box •Elevating screw Types of shaper machine:- •Standard shaper •Vertical shpaer •Horizontal shaper •Geared shaper •Universal shaper •Crank shaper •Draw cut shaper •Hydrolic shaper •Counter shaper  Operation of shpaer machine:- •Vertical cutting operation •Horizontal cutting operation •Inclined cutting operation •Angular cutting operation •Irregular cutting operation Application of shaper machine:- •Internal spllines •Gear teeth •Keyway in pully •Contour of concave or convex  Advantage of shaper machine:- •Tool cost is low. •Workpiece hold easily. •Produces falt and angular surface. •Setup of shaper is very easy and tool •change...
Read more

Electric discharge Machine: Introduction,working principle,parts,types of EDM,components,application,advantage,disadvantage,EDM

Image
Introduction:- Electric discharge Machine is the process of metal removal from the work surface due to an erosion of metal caused by electric Spark discharge between the two electrode tool and the work piece. Electrical Discharge Machining is also called or known as Spark machining, spark eroding, burning, die sinking, wire burning or wire erosion. This spark near to 8000 to 12000ยบ C. Parts of Electrical Discharge Machine :- • DC Power supply   •Voltmeter •Ammeter •Tool •Die-electric fluid •Pump •Filter •Servo- controlled feed •Fixture •Table Working of Electrical Discharge Machine :- It consists of an electric power supply, the dielectric medium, the tool, workpiece, and servo control. The workpiece is connected to the positive terminal and the tool is connected to a negative terminal of the DC power supply. An air gap of 0.005 to 0.05 mm is maintained between the tool and the work. The die electric fluid which is non-conductor of electricity is...
Read more

Abrasive Jet Machine: Introduction, Working principle, working process,parts, Application, Advantage, disadvantage, diagram with suitable name

Image
Introduction:-   It is the process of impinging the high speed stream of abrasive particles by high pressure gas or air on the work surface through a nozzle and metal removal occurrs due to erosion caused by high speed abrasive particles.       In this Machining,the abrasive particle size is 10-40 micros.      Jet velocity will be 150 to 300 m|sec. And it is used to superalloys. Parts of Abrasive Jet Machine:- 1.  Gas supply 2. Filter 3. Pressure gauge 4. Regulator 5. Mixing chamber 6 . Nozzle Working Principle of Abrasive Jet Machine:- The figure shown is the above Abrasive jet Machining. It consists of a mixing chamber, gas filter, pressure gauge, regulator, and the nozzle. The filtered gas at a pressure of 2 to 8 kgf/cm2 is supplied to the mixing chamber containing the abrasive powder and vibrating at 50 Hz, where it mixes with abrasive particles and then enters into the connecting hose. The abrasive and gas mixture c...
Read more