Existing Method (Press Forging) TIE ROD END
New Method (CWR Engineering) TIE ROD END
Process
Advantage 1. To form a complicated image with a simple processing
2. Comparatively good quality; Comparatively nice metal flow image
3. Low investment into the facility; Prompt LINE SET-UP
1. Possible to transform a certain section of it; significantly high degree of recovery
2. Possible to adjust the volume; longer lifespan of the cast
3. Automation enhances productivity and makes it easy to standardize the work
4. Automation reduces workers¡¯ fatigue and the scale of work force required.
5. Accurate transportation by means of robots, which shortens the working time
Disadvantage 1. Simple processing but high level of fatigue to the workers; a large scale of work force required(heating, manual operation, etc)
2. Low degree of recovery due to the difficulty in volume allotment
3. Excessive molding that leads to easy abrasion of the cast; the molding performance gradually deteriorates
4. Excessive burr in trimming causes deformation; separate correction required
1. Additional installation of facility required and causing initial investment
2. High expense for initial mold installation and a high level of mold designing techniques required
Item
Recovery Metal Flow Cast Lifespan Work force Buckling
Intensity
T.S Applicable
Company
Existing 60~70% See the back
page
4,000 5 2,100kgf 84kg/§± -
New 80~85% See the back
page
6,500 2 2,200kgf 88kg/§± Not among
domestic
companies
Note 22% - 160% ¡è 3 reduced 5% ¡è 5% ¡è New LINE
 
 
Sample
Sample Processing
Class.
Existing
New
Hydrochloric
Acid Density
90% +
90% +
Working Time
30 mins
30 mins
Class
Existing Method (press forging)
New Method (CWR Engineering)
A
part
Due to the existing hot forging
characteristics, general metallic
flow is seen; density is low
and typical hot forging
characteristics are observed.
Accurate volume allotment through
the rolling process of the new
method in formation,
which involves normalizing and
a form of metal flow similar to
that of forging.
B
part
The level of hot forging
deformation is seen in the
central area, which reflects the
metallic image of the raw material;
density is not high.
A high level of density due to
the rolling process; hot forging
makes it highly dense; the raw
material at the center remains
in an ideal state.
C
part
Deformation rate at the edge
is relatively low and thus
the metal of the raw material is
seen as it is; normalizing
due to forging is not seen
The level of density is quite high;
Density is comparable to that of
the raw material in the central
area.