We, Lampscity Co Ltd has specialized in tungsten carbide drawing dies.
Here are more information about tungsten carbide dies we are showing you:
Structure name for carbide drawing dies:
The roles of different parts for carbide drawing die blanks:
The shape an size of different parts for carbide drawing die, depended on the drawn metal components, performance and size, the size of compression ratio, lubrication, drawn conditions and requirements of products.
1. Entrance area
Entrance area to work area are designed for arc transition in favor of material drawn into the work area, and will not be grazed by rhombusing edge of die hole.
2. The cone angle of lubrication
Lubrication area is the storage of lubricants, so that the materials drawn can be lubricated, in favor of the
smooth progress of the drawing process. It's by means of lubrication area to enlarge the work area when
drawing die ream hole. The height of lubrication zone is 0.25 times than total height of blank.
3. Work area
Plastic deformed area of metal stretch, that is, metallic materials is through the area, diameter will range
from big to small; tube wall becomes thin or tube diameter gets small when drawing tube. The length of the
work area will be different according to drawn material, diameter and lubrication. The principle of their choice
is as below:
(1) Drawing soft metal wire should be shorter than the hard metal wire.
(2) Stretching small diameter wire should be shorter than dry lubrication stretch.
(3) Web lubrication stretch should be shorter than dry lubrication, In normal cases, the length of the work
zone is 1.0~1.4 times than the diameter of sizing district.
4. The cone angle of work
The cone angel of work is smaller when drawing steel, and the cone angle should be larger when drawing
non-ferrous metals and their alloys. The principle of their choice is as following:
(1) Smaller compression ratio, smaller cone angle of work
(2) Harder drawn materials, smaller cone angle of work
(3) Drawn small-diameter material, the cone angle should be larger
5. Sizing district
The stretching product will define the final size through the sizing district.the length h of sizing district is
different according to the hardness of drawn material, the size of cross-sectional area and lubrication.
Meeting the below requirements:
If "h" is too long, the friction will increase in the drawing process and mold temperature rise, thus the die life is impacted. At the same time, it will also raise stretch stress, the rate of broken wire will be increased and
power consumption is also increasing in the stretching process.
If "h" is too small, it will affect the size of drawing products in the stretching process when the working taper
change. Different drawing materials, the length of the sizing district are also different.
The sizing district of stretching soft metal materials is generally shorter than hard metal material; the sizing
district of drawing large-diameter material is shorter than small-diameter material (stretching wire and rod, its
length is generally 0.3~0.5 times of inner hole); the sizing district of wet lubricaiton drawn is shorter than dry
lubrication.
6. Exit area
It's the last passed area for drawing material leaving die-hole, but exit zone should no be too short, otherwise
it's easy to rupture the exit zone. The length "h1" of exit zone should be as 0.12~0.20 times as the height of
blanks "H".
7. The cone angle of exit
It ensures that the drawn metal will not scratch the exit of sizing district and the stretched finished or semi-
finished product, because there are no special requirements. Drawn thick and medium wires, the cone angle
of exit is generally 60 degree; stretched small wires, it should be taken larger cone and angle 90 degree or
75 degree, also taken hemispheric shapes.
Lamscity Co., Ltd
sales@solarsoncarbide.com
Here are more information about tungsten carbide dies we are showing you:
Structure name for carbide drawing dies:
The roles of different parts for carbide drawing die blanks:
The shape an size of different parts for carbide drawing die, depended on the drawn metal components, performance and size, the size of compression ratio, lubrication, drawn conditions and requirements of products.
1. Entrance area
Entrance area to work area are designed for arc transition in favor of material drawn into the work area, and will not be grazed by rhombusing edge of die hole.
2. The cone angle of lubrication
Lubrication area is the storage of lubricants, so that the materials drawn can be lubricated, in favor of the
smooth progress of the drawing process. It's by means of lubrication area to enlarge the work area when
drawing die ream hole. The height of lubrication zone is 0.25 times than total height of blank.
3. Work area
Plastic deformed area of metal stretch, that is, metallic materials is through the area, diameter will range
from big to small; tube wall becomes thin or tube diameter gets small when drawing tube. The length of the
work area will be different according to drawn material, diameter and lubrication. The principle of their choice
is as below:
(1) Drawing soft metal wire should be shorter than the hard metal wire.
(2) Stretching small diameter wire should be shorter than dry lubrication stretch.
(3) Web lubrication stretch should be shorter than dry lubrication, In normal cases, the length of the work
zone is 1.0~1.4 times than the diameter of sizing district.
4. The cone angle of work
The cone angel of work is smaller when drawing steel, and the cone angle should be larger when drawing
non-ferrous metals and their alloys. The principle of their choice is as following:
(1) Smaller compression ratio, smaller cone angle of work
(2) Harder drawn materials, smaller cone angle of work
(3) Drawn small-diameter material, the cone angle should be larger
5. Sizing district
The stretching product will define the final size through the sizing district.the length h of sizing district is
different according to the hardness of drawn material, the size of cross-sectional area and lubrication.
Meeting the below requirements:
If "h" is too long, the friction will increase in the drawing process and mold temperature rise, thus the die life is impacted. At the same time, it will also raise stretch stress, the rate of broken wire will be increased and
power consumption is also increasing in the stretching process.
If "h" is too small, it will affect the size of drawing products in the stretching process when the working taper
change. Different drawing materials, the length of the sizing district are also different.
The sizing district of stretching soft metal materials is generally shorter than hard metal material; the sizing
district of drawing large-diameter material is shorter than small-diameter material (stretching wire and rod, its
length is generally 0.3~0.5 times of inner hole); the sizing district of wet lubricaiton drawn is shorter than dry
lubrication.
6. Exit area
It's the last passed area for drawing material leaving die-hole, but exit zone should no be too short, otherwise
it's easy to rupture the exit zone. The length "h1" of exit zone should be as 0.12~0.20 times as the height of
blanks "H".
7. The cone angle of exit
It ensures that the drawn metal will not scratch the exit of sizing district and the stretched finished or semi-
finished product, because there are no special requirements. Drawn thick and medium wires, the cone angle
of exit is generally 60 degree; stretched small wires, it should be taken larger cone and angle 90 degree or
75 degree, also taken hemispheric shapes.
Lamscity Co., Ltd
sales@solarsoncarbide.com
