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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
the self lubricating bearing is a typical application of metal powder parts or powder metallurgy process the self lubricating bearings made from
presintering is an operation in which the powder metallurgy components after compaction are heated for a short time to a temperature considerably
the operation of heating a green compact to an elevated temperature is known as sintering it is a process by which solid
to achieve successful results in powder metallurgy the metallic powder must be thoroughly homogenized the term blending and mixing are both used in
q describe the continuous production of metal strip by roll compacting of powder differentiate between impregnation and infiltrationans
q describe the various characteristics of metal powders to be considered before their selection for any processans metal powder characteristics
q what are the limitations of the powder metallurgy process how are some of these overcome ans limitations 1 dies and equipment costs are high so
q what are the secondary operations we apply in powder metallurgy methods give their use alsoans secondary processes of manufacture in addition to
q what is sintering explain the stages of sinteringans the operation of heating a green compact to an elevated temperature is known as sintering it
q what is the purpose of i sizing ii coining
q describe two major product applications of powder metallurgyans following are some typical applications of powder
q write short note on following i compression moulding of
q discuss the classifications of plastics