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the experimental set-up of electron-beam weldingin the electron-beam process electrons are emitted from the heated filament called the cathode and
q explain the tig and mig systems of arc welding give the applications of
q describe the electro slag welding q describe the electro slag welding
plasma arc welding paw is a special form of gas tungsten arc welding in which constricted plasma arc is directed at the weld area in paw a tungsten
in spot welding the parts to be joined are normally over lapped the work piece are clamped between two water cooled copper electrodes on the passage
q what are the differences between soldering brazing and weldinganssno weldingsolderingbrazing1welding is a process in which two or more
q explain briefly the friction welding q explain briefly the friction welding
gas metal arc welding gmaw is performed by using direct current reverse polarity as it gives both good cleaning action and fast filler metal
q explain the following terms i flash in forging ii fullering and up
q define the concept of strain hardeningans strain hardening or work hardening in metal occurs because of interaction between the this location and
q describe briefly the following methods of forging i drop forging ii press forgingans i drop
drawing operation can also be used for reducing the tube cross-section the drawing equipment consists of draw bench and die one end of the tube is
wire drawing involves pulling the metal through a die by means of tensile force applied to the exit side of the die a
riveting is a fixed fastening procedure in which the end of the metal pin is pressed over or spread out by hammering operation wrought iron and
embossing is a forming operation used to create indentation in the sheet such as raised indented lettering or strengthening rips as shown in fig some
blanking involves cutting of the sheet metal along a closed outline in a single step to separate the piece from the surrounding stock as shown in
extrusion in this method of forging the metal slug is forced to pass through a die under the action of intense of hydraulic pressure the process can
q describe the advantages and disadvantages of hot working and cold working processes explain the extrusion processans advantages of hot working
q define elastic and plastic deformation and differentiate between themans elastic deformation elastic deformation is that part of the deformed
q what are the commented carbides how are they processedans these are very important products of powder metallurgy and finds wide applications as
virtual prototyping techniques provide unique way of interacting with computer data and images these removes the barriers of key board monitor and
q4 explains subtractive rapid prototyping process and compare with additive
q5 explain briefly the blending of metal powdersans blending of metal powder the procedure of
q6 define powder-metallurgy what are various important techniques for compacting of metal powders ans powder metallurgy is a technique of producing
mechanical pulverization method is applicable to brittle metals like antimony many varieties of mechanical pulverizers are in use some of these have