What is a cold direction?
COLD Heading is a process that uses molds and strikes to create variable shaped parts made of metal wire. This process is able to reliably reproduce accurate specifications. The approved headline, as shown in the name, does not use heat to transform the raw material; It uses power controlled by a blow to push the material through the new shape. Depending on the final use of the product, the wire may be different degrees of steel, copper, brass or other alloys. The wire is fed into the process and is cut with a cutter in the length that brings the volume of the wire exactly the equivalent amount of the material needed for the finished product.
The process continues to create a head of the finished piece. The cold process is mainly used in the production of screws, screws and other fasteners that must have a specifically shaped head. The shape of the head can be made with die, punch, or a combination of these two. If the end of the strike is in the shape rather than the flat, it forms a part of the shape of the head of the finished piece.
Designs used for cold headings are often referred to the number of steps in the process. The process of two die/three means that the supply wire is forced to two different shapes of death and is hit by three different blows. The number of strokes required concerns the degree of decreasing the size of the desired wire to die. In general, one blow cannot effectively reduce size by more than 30%.
If necessary, the part for the cold after completing the cooling process of the cold header. Completed parts are often treated thermally to stiffen and brind metal. To complete the parts, the surface can be cleaned to remove residual lubricants or coated or plated for certain applications.
Cold head is an extrusion form, but has an advantage over other methods of extrusion - it can be used for materials that are not resistant to heat. It can be more cost -effective than milling, machining or etching because it does not waste any feed. Also costs less thanhot headings because it does not require any heat. The process is fast and can be set to create a huge number of designs. However, there are some shapes that cannot be produced without heat and some materials that are insufficiently elastic to form without heat and are therefore unsuitable for cold formation.