Manufacturing of Cold Heading Wires

Cold Heading Wires (CHQ wires) are a creation of hot and cold processes that are needed to best suit for the creation of other cold headed parts that serve the purpose of its body. The wire must suit to cold processing and the final use for the finished part. Cold heading wires have vast and variable applications in transport, building, chemical, electronics, aerospace, and marine industries. Thus, realizing that it has such critical usage, the material used for its manufacturing forms the most crucial concern. This is also because the finished performance of the wire shall reflect the initial properties and integrity of the wire. Precision Drawell, a unit of Khandelwal Group has been committed to the manufacturing of different grades of steel wire and wire products since 1985. It also manufactures CHQ wires for applications in infrastructure and engineering industries.

Cold heading process is the process of altering initial steel blanks into a finished product through force, a series of tools and dies. In the process, the actual volume of steel remains unchanged but it impacts the tensile strength. Owing to the attributes of high ductility and attitude towards the tempering process, cold heading quality wires are available in various grades to suit the needs of the client and requirements of the projects. Aluminum, brass, bronze, boron, steel, copper, nickel, silver, stainless steel and carbon steel are some of the common options in wire forming. They also hold up to the cold and strenuous working. Precision Drawell is equipped with an inbuilt mechanical laboratory to test the strength of the steel that comes in for the manufacture of wire. Once the CHQ wire is formed, it is coiled around a spool for easy shipping and transportation. Before the cold heading begins, the wire is cut to the desired lengths and a pre-straightening device is used to correct the curves and kinks so that the material directly flows into the subsequent equipment.

Cold heading is a high-speed manufacturing process. This type of forging is carried out without the application of heat. The process is volume specific and converts a specific slug into a finished part that is intricately shaped. It is for this reason that besides the various application of cold heading wires, these wires are also used as a raw material for the purpose of production of fasteners such as bolts, screws, nuts, rivets, nails, and some of the other similar yet complex parts. An important fact to consider the use of CHQ wires for fastener industry is to consider the com-positional limits, inclusion rates, impurities, surface defects, and even the final coatings with respect to the intended use of the fasteners. Traditionally, fasteners were manufactured using the thread cutting methods. However, the trends are now moving towards the cold working process to cut down the cost and increasing productivity at the same time. Precision Drawell today has a huge drawing capacity and size ranges to produce world-class CHQ wires. Thus providing good surface finish and dimensional accuracies to the fasteners.