Cnc Programming

Electron beam eb machining is a powerful method for micro and nanofabrication because the beam can be focused to a diameter of the order of a few nanometers. Introduction electron beam machining is one of the examples of non conventional machining under the thermal process category along with laser beam machining electric discharge machining and plasma cutting.

Chapter 19 Electronic Electrochemical Chemical And Thermal

Electron Beam Melting Ebm Additive Manufacturing

Advanced Machining Processes Unconventional Machining

Working principle of electron beam machining.

Electron beam machining in pdf. This will generate high heat energy and melts and vaporize metal from work piece. Electron beam machining ebm is a process where high velocity electrons concentrated into a narrow beam are directed toward the work piece creating heat and vaporizing the material. Due to pattern of electrostatic field produced by grid cup electrons are focused and made to flow in the form of a converging beam through anode. Yunitha ratnadilla tri adhi kusuma 11313560tk37951 electron beam machining a. Electron beam machining is same as laser beam machining process in which except laser high speed electron beam impinges on work piece. The cathode is generally made of tungsten or tantalum. It is mostly used to drill holes in any shape. In the electrical beam machining electrical energy is used to generate the electrons with high energy. Electron beam machining ebm advantages and disadvantages. This whole process takes place in vacuum chamber. Electron beam machining is a thermal process used for the metal removal during the machining process. Electron beam machining is the metal removal process by a high velocity focussed stream of electrons which heats melts and vaporizes the work material at the point of bombardment. Electron beam machining free download as powerpoint presentation ppt pdf file pdf text file txt or view presentation slides online. Electron beam machining ebm the production of free electrons negatively charged particles are obtained by electron gun. Ebm can be used for very precise cutting or boring of a wide variety of metals.

A detailed notes on electron beam machining process and surely helps you. This property permits the fabrication of nanoscale patterns by using an eb sensitive polymer resist in a process called eb lithography ebl. Electron beam machining equipment the basic functions of any electron beam gun are to generate free electrons at the cathode accelerate them to a sufficiently high velocity and to focus them over a small spot size. Further the beam needs to be manoeuvred if required by the gun. In this post you learn what is electron beam machining how its done with its working principle advantages of ebm accuracy and limitation of electron beam machining.