rebirth冲压英文术语

2021年1月21日发(作者：立即)
Glossary

Deep drawn stamping is a complex and exacting technology. Its applications are far
reaching
and
its
language
is
often
new
to
many
engineers
and
purchasing
managers. To help with the buying decision, we’ve compiled a glossary of terms.
Your ITW Drawform representative is also a great resource of information.

A

Anisotropy
(Earring)
-
Variations in one or more physical or mechanical properties
with direction.
B
Blank -
The piece of sheet metal, produced in cutting dies, that is to be subjected to
further press operations. A blank may have a specific shape developed to facilitate
forming or to eliminate a trimming operation subsequent to forming.
Blank
Development
-
The process of determining the optimum size and shape of a
blank for a specific part to minimize scrap.
Blank Gridding (Circle Grid Analysis) -
Imprinting a metal blank with a pattern on the
sheet surface, such pattern to be used for subsequent strain measurement and
interpretation.
Blank Holder -
That part of a forming die which holds the blank by pressure against
a mating surface of the die to control metal flow and prevent wrinkling. The blank
holder is sometimes referred to as “hold down” or binder area. Pressure is applied
by mechanical means, springs, air
, or fluid cushions.
Blank Holder Pressure -
The pressure exerted by the blank holder against the blank.
This is normally adjustable to control metal flow during drawing.
Blanking -
The act of cutting a blank.
C
C
l
amping Pressure -
Pressure applied to a limited area of the sheet surface, usually at
the periphery, to control or limit metal flow during forming.
Coining -
A process of cold forming metals in which the metal is shaped between two
dies in such a manner as to fill the depression of both dies in relief by displacement
of the material.
Cold
Working
-

The
deformation
of
metal
significantly
below
its
recrystallization
temperature such that work hardening occurs.
Cupping
-
A press forming operation in which a cup shaped part is produced from
sheet metal. Cupping is often the first operation in the production of a complex
deep drawn part.
Cut-Off Die -
Sometimes called a trimming die. The cut-off die can be the last die in
a set of transfer dies which cuts the part loose from scrap. It can also be a die which
cuts straight-sided blanks from a coil for later use in a draw die.
D
Deep
Drawing
-
A drawing operation where a part is produced from a blank by the
action of a punch in which the sheet is pulled into a die cavity and the flange of the
blank is compressed in the circumferential direction. The area directly under the
punch remains undeformed.
Developed Blank -
A flat blank with a shape that will produce a finished part with the
desired configuration and a minimum of trimming operations.
Die -
(a) A complete set of stations (tool) used in a press for any operation or series
of
operations,
such
as
forming,
impressing,
piercing
and
cutting.
The
upper
member(s)
are
attached
to
the
slide(s)
of
the
press
and
the
lower
member
is
clamped or bolted to the bed or bolster with the die members being so shaped as to
cut or form the material placed between them when the press makes a stroke.
A

Anisotropy (Earring) -
Variations in one or more physical or mechanical properties with direction.

B

Blank -
The piece of sheet metal, produced in cutting dies, that is to be subjected to further press
operations. A blank may have a specific shape developed to facilitate forming or to eliminate a trimming
operation subsequent to forming.
Blank Development -
The process of determining the optimum size and shape of a blank for a specific
part to minimize scrap.
Blank Gridding (Circle Grid Analysis) -
Imprinting a metal blank with a pattern on the sheet surface,
such pattern to be used for subsequent strain measurement and interpretation.
Blank Holder -
That part of a forming die which holds the blank by pressure against a mating surface
of the die to control metal flow and prevent wrinkling. The blank holder is sometimes referred to as
“hold down” or binder area. Pressure is applied by mechanical means, spr
ings, air
, or fluid cushions.
Blank Holder Pressure -
The pressure exerted by the blank holder against the blank. This is normally
adjustable to control metal flow during drawing.
Blanking -
The act of cutting a blank.

C

Clamping Pressure -
Pressure applied to a limited area of the sheet surface, usually at the periphery,
to control or limit metal flow during forming.
Coining -
A process of cold forming metals in which the metal is shaped between two dies in such a
manner as to fill the depression of both dies in relief by displacement of the material.
Cold Working -
The deformation of metal significantly below its recrystallization temperature such
that work hardening occurs.
Cupping -
A press forming operation in which a cup shaped part is produced from sheet metal. Cupping
is often the first operation in the production of a complex deep drawn part.
Cut-Off Die -
Sometimes called a trimming die. The cut-off die can be the last die in a set of transfer
dies which cuts the part loose from scrap. It can also be a die which cuts straight-sided blanks from a
coil for later use in a draw die.

D

Deep Drawing -
A drawing operation where a part is produced from a blank by the action of a punch
in
which
the
sheet
is
pulled
into
a
die
cavity
and
the
flange
of
the
blank
is
compressed
in
the
circumferential direction. The area directly under the punch remains undeformed.
Developed
Blank
-

A
flat
blank
with
a
shape
that
will
produce
a
finished
part
with
the
desired
configuration and a minimum of trimming operations.
Die -
(a) A complete set of stations (tool) used in a press for any operation or series of operations, such
as forming, impressing, piercing and cutting. The upper member(s) are attached to the slide(s) of the
press and the lower member is clamped or bolted to the bed or bolster with the die members being so
shaped as to cut or form the material placed between them when the press makes a stroke.
Die Clearance -
The space on each side, between punch and die that metal fills during the process and
is typically tight to the punch.