What is Forging?
Forging is the age-old process in which metals are formed and shaped using compressive forces such as hammering. Since antiquity, Japanese swordsmiths have been refining their techniques for forging the swords for which Japan is famous. With advances in automation, forging is now performed using large, automated presses. Samtech has also introduced large automatic forging presses of 1,000 to 3,000 tons to manufacture various forgings used in automobiles.
Precision Hot Forging
hot forging by slimming
One reason our customers appreciate our work is that we use large forging presses with state-of-the-art transfer equipment and high-precision molds, which we ourselves design and manufacture using CAE, allowing us to supply precision hot-forged products with minimal machining allowances, conserving resources and energy while reducing costs for steel production. We are proud of our unique technology and top class in the forging of wheel hub unit bearings (inner shaft and outer ring), which are important parts that support the rotation of automobile wheels.
|Hot forging||Main plant||Habikino Plant|
Design and Molds
Die Design Expertise
- CAD and CAE software for mold design
- Space-E V-5.0、Simufact.forming V-8.0、Pro/ENGINEER Wildfire V-4.0
- Mold fabrication equipment
- Die-sinker electrical discharge machines, Small-hole drilling electrical discharge machines, machining centers, wire-cut electrical discharge machines, plane grinders, NC lathes, turning machines, ion nitriding equipment
- Mold inspection equipment
- 3D measuring instruments, gear measuring instruments, roundness measuring instruments, contour tracers, episcopes, hardness testers, metal microscopes, magnetic flaw detectors
Forged products cannot be used straight out of the die, because their dimensional accuracy is still too low. It is first necessary to perform cutting to achieve the dimensional accuracy specified for the finished product. In the cutting process, a device called a lathe uses a rotating blade to shave away the workpiece’s surface. Lathes use various blades, depending on the material hardness and shape.
With the aim of improving logistics efficiency, shortening lead times, and reducing costs, production at SAMTECH is integrated from forging to cutting.
Cost reduction: Cutting removes excess material, leading to cost reduction.
(Precision Composite Forging)
In particular, “dog tooth” gears in automobile transmissions that conventionally require the welding together of two separate pieces can now be formed as a single piece, making transmissions more compact and improving the shift feel.
Cold forging (process 1)
Cold forging (process 2)
|Cold forging||Main plant||Habikino Plant|
from the Forging Stage
We use our superior hot-forged precision products as the material (blank) for flowforming, shortening development periods and realizing optimal shapes by integrated production, including pre-lathing. Forming from steel-plate blanks is also possible.
Heat treatment and shot blasting
|Equipment name||Number of lines|