Capabilities
The different type of Cold Forming Process includes:
- Burnishing- Burnishing is a process in which smooth but hard tool is rubbed on the metal surface using sufficient pressure. The process helps to flatten the high spots to achieve precision finish. The edges of the sheet metal can be smoothened by pushing it through the die. Burnishing tool is the best option wherever there is need for accurate size and smooth surface finish.
- Coining- Coining is a process used to manufacture electronic packages that have complex geometric shapes and require high tolerances. The process involves squeezing of metal as it is held in close dies. A movable punch within the die cold works the material and forms intricate design feature.
- Cold Forging- Cold process is a working method where the metal is squeezed into the die and the finish part takes the shape of die. This process is also known as cold heading. It is mostly used to form nail, a bolt or a screw with the head.
- Cold Rolling- Cold Rolling is a working process in which metal sheet is placed between rollers and then compressed and squeezed. The process increases the yield strength and hardness of a metal by introducing defects into the metal's crystal structure. Cold rolling is mostly used to form foil, sheet and plates for various industries.
- Gravity Die-Casting - Gravity Die-Casting is a process in which the molten metal is poured into the metallic mold without application of external force. It is most appropriate process for producing accurately dimensioned, sharply defined, smooth or textured-surface metal parts. The main advantage of gravity die casting over sand casting is the high speed of production.
- Hubbing- Hubbing is a process in which the relief image of the coin is impressed into a steel die during the process of creating coin dies. The original coin image is actually a plaster sculpture of 8 to 12 inches in diameter.
- Impact Extrusion- Impact Extrusion is similar to conventional extrusion which can be operated at high temperature to soften the metal. A metal slug can be forced into any desired shape with a single stroke. It is mostly used to make collapsible tubes such as toothpaste tubes and cans.
- Peening- Peening is a cold process in which the metal is worked by means of hammer blows or by blasting with shot (shot peening). The process is used for expanding the surface of the cold metal, which helps in removing the tensile stresses and exciting compressive stresses. It also improves the strain hardening of surface material.
- Pressure Die-Casting - Pressure die-casting is a quick, reliable and cost effective process for manufacturing high volume metal components. The process includes injection of molten metal alloy under high pressure into steel molds. Pressure die-casting provides excellent dimensional accuracy and the smooth surface finish. Most high-pressure die-castings require no machining except the removal of flash around the edge.
- Squeeze Casting - Also known as Liquid Metal forging, Squeeze Casting is a combination of casting and forging process. The molten metal is poured into the preheated die. As the molten metal starts solidifying, the upper half of the dye is closed and a high pressure is applied.
- Thread Rolling- Thread rolling is the process used for making external threads. A die, which is hardened tool with a profile, is pressed on rotating workpiece. As the die is compressed and the force is increased, the thread profile is transferred into the workpiece.
