Drop Forging Process, Closed die Forging, Hot Forging
Pan Taiwan provides customers with complete solutions from forging process to post machining and final finish treatment. Forging material we deal with are alloy, aluminum, carbon steel, stainless steel and copper. Our capacity is from hot forging machines 200 tons to 2500 tons. The industries we get involved are marine hardware, bike accessories, motorcycle industry, medical and auto parts. Pan Taiwan is a quality oem contract manufacturing supplier.
Our custom forging services included open die forgings, seamless rolled rings, and contoured rolled rings. Forging shapes include discs, hubs, blocks, shafts (including step shafts or with flanges), sleeves, cylinders, flats, hexes, rounds, plate, and some custom shapes. Forgings can be produced as finished size, finished size rough machined, forged size, forged size rough machined, as forged size, or as forged size with allowance to finish to your finish size. Seamless rolled rings and contoured rings are made to save on material and machining costs.
The features of Pan Taiwan are to provide vertical and horizontal integration services. From design feedback, tooling development, efficient production planning through timely logistic, Pan Taiwan team is ready to serve you with our professionalism. We can also combine a few different manufacturing processes to make parts and to assemble a complete product with packaging for you. If you have your own designs, and you want to make it real, please contact us.
Hot forging is defined as working a metal above its recrystallization temperature. The main advantage of hot forging is that as the metal is deformed the strain-hardening effects are negated by the recrystallization process.
The advantages of hot forging are as below:
First, decreasing in yield strength, therefore it is easier to work and takes less energy (force). Second, the object ductility can increase. Third, the elevated temperatures increasing diffusion can remove or reduce chemical inhomogeneities. Forth, pores may reduce in size or close completely during deformation. Furthermore, in steel, it is the weak, ductile, FCC (face-centered-cubic) austenite deforms instead of the strong BCC (body-centered-cubic) ferrite at lower temperatures.
The disadvantages of hot forging are as below: First, undesirable reactions between the metal and the surrounding atmosphere would appear. Second, less precise tolerances are allowed due to thermal contraction and warping from uneven cooling. Third, grain structure may vary throughout the metal for various reasons.
- Hot Forging Parts 1
- Hot Forging Parts 2
- Hot Forging Parts 3
- Hot Forging Parts 4
- Hot Forging Parts 5
- Hot Forging Parts 6
- Hot Forging Parts 7
Cold Forging is a cold working process. The material is squeezed into a die and the finished parts assume the shape of the die. This process is known as cold heading as well. Bar stock or wire stock is fed into a die and is squeezed into the closed die. The resultant part is a nail, a bolt or a screw with the head. A subsequent cold heading operation forms other features on the head such as knurls or slots for screw drivers etc. This process can be highly automated and parts can be made economically.
This method is used to both standard and special fasteners.
The advantages are no heating required, better surface finish, superior dimensional control, better reproducibility and interchangeability, directional properties can be imparted into the metal, and contamination problems are minimized.
The disadvantages are as below: First, higher forces are required. Second, heavier and more powerful equipment and stronger tooling are required. Third, metal is less ductile. Forth, metal surfaces must be clean and scale-free. Fifth, Intermediate anneals may be required to compensate for loss of ductility that accompanies strain hardening. Sixth, the imparted directional properties may be detrimental. Last, undesirable residual stress may occur.
- Cold Forging Parts 1
- Cold Forging Parts 2
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