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high-level computer languages are created to be understood by humans as a result the keywords and the commands of these
a particular metal has a flow curve with parameters strength coefficient 35000 lbin2 and strain hardening exponent
the strength coefficient and strain hardening exponent of a certain test metal are 40000 lbin2 and 019 respectively a
the following stress and strain values were measured in the plastic region during a tensile test carried out on a new
determine the value of the strain hardening exponent for a metal that will cause the average flow stress to be 34 of
a 20-in-thick slab is 100 in wide and 120 ft long thickness is to be reduced in three steps in a hot rolling operation
a series of cold rolling operations is to be used to reduce the thickness of a plate from 50 mm down to 25 mm in a
in the previous problem suppose that the percent reduction were specified to be equal for each pass rather than the
a continuous hot rolling mill has eight stands the dimensions of the starting slab are thickness 30 in width 150 in
a connecting rod is designed to be hot forged in an impression die the projected area of the part is 6500 mm2 the
a 20-in-long billet with diameter 125 in is direct extruded to a diameter of 050 in the extrusion die angle 90deg for
bar stock of initial diameter 90 mm is drawn with a draft 15 mm the draw die has an entrance angle 18deg and the
wire stock of initial diameter 0125 in is drawn through two dies each providing a 020 area reduction the starting
in conventional sheet metalworking operationsa what is the name of the tooling andb what is the name of the machine
rod stock that has an initial diameter of 050 in is drawn through a draw die with an entrance angle of 13deg the final
an l-shaped structural section is direct extruded from an aluminum billet in which lo 250 mm and do 88 rnm dimensions
a direct extrusion operation is performed on a cylindrical billet with an initial diameter of 20 in and an initial
the foreman in the press working section comes to you with the problem of a blanking operation that is producing parts
a compound die will be used to blank and punch a large washer out of 6061st aluminum alloy sheet stock 350 mm thick the
a blanking operation is to be performed on 20-mm thick cold-rolled steel half-hard the part is circular with diameter
a cup-shaped part is to be drawn without a blank holder from sheet metal whose thickness 025 in the inside diameter of
an orthogonal cutting operation is performed using a rake angle of 15deg chip thickness before the cut 0012 in and
in problem 211 suppose the rake angle were changed to alpha 0deg assuming that the friction-angle remains the same
question 2050 lhr of a mixture containing 25 methane 35 ethylene and 40 propylene at 49 degc and 130 atm is fed to an
a facing operation is performed on an engine lathe the diameter of the cylindrical part is 6 in and the length is 15 in