Engineering Materials and
Manufacturing Processes
Lesson 4A
,Metal Forming
manufacturing process
plastic deformation is used to change the shape
of metal work pieces.
Deformation results from the use of a tool
called a die
which applies stresses that
exceed the yield strength of the metal.
The metal deforms to take a shape determined by
the geometry of the die.
,Classification – Metal Forming Processes
, These are processes are forming and cutting operations
performed on metal sheets, strips, and coils.
The surface area-to-volume ratio of the
starting metal is high
This ratio is a useful means to distinguish
bulk deformation from sheet metal processes.
Pressworking is the term often applied to
sheet metal operations
A part produced in a sheet metal operation is
called a stamping.
Sheet metal operations are always performed as
cold working processes and are
usually accomplished using a set of tools
called a punch and die.
Manufacturing Processes
Lesson 4A
,Metal Forming
manufacturing process
plastic deformation is used to change the shape
of metal work pieces.
Deformation results from the use of a tool
called a die
which applies stresses that
exceed the yield strength of the metal.
The metal deforms to take a shape determined by
the geometry of the die.
,Classification – Metal Forming Processes
, These are processes are forming and cutting operations
performed on metal sheets, strips, and coils.
The surface area-to-volume ratio of the
starting metal is high
This ratio is a useful means to distinguish
bulk deformation from sheet metal processes.
Pressworking is the term often applied to
sheet metal operations
A part produced in a sheet metal operation is
called a stamping.
Sheet metal operations are always performed as
cold working processes and are
usually accomplished using a set of tools
called a punch and die.
