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What Are Cold Headed Components? Advantages in Automotive Applications
The world of automotive engineering is ever evolving and in this sector there is a constant quest for efficient, stronger, lighter in weight and cost-effective components. And why shouldn’t it be? They play a vital role in performance, safety and longevity of the vehicle. Manufacturers are aiming to meet the ever demanding performance and safety standards. As a solution cold headed components have come up as transformative elements to deliver high quality solutions to modern automobiles.
But first, let us dive into the world of cold headed components, explore what they are, how they are made and analyse why they are a preferred choice in the automotive applications.
Understanding Cold Headed Components: The Science of Strength
As the name suggests, cold headed components are metal parts which are formed by cold heading or cold forming process. It is a method which helps to shape a metal at or near room temperature by using excessive pressure. This technique is different from hot forging where a metal undergoes high temperature to increase its malleability, while cold forging is dependent on immense pressure which is exerted by dies and punches to first disfigure a metal then model it into desired shape.
The process involves feeding a coil of wire into a multi-station cold forging machine. Here, the wire is precisely cut into desired length and after that an array of progressive dies and punches work collectively to intricately forge the required shapes.
Common cold headed components are:
Rivets
Bolts
Screws
Studs
Pins
Or specialized automotive fasteners
These components are primarily used in industries which prioritize precision forming and do not negotiate with high structural integrity like automotive, electronics, aerospace and industrial machinery.
Key features:
No heat required: This is the essential trait of cold forging. When the metal is worked-upon in an ambient temperature the problems of scaling, distortion or grain growth do not exist.
Metal is rearranged, not removed: Cold heading involves reshaping the metal into desired shape, unlike machining which cuts and scrapes away the metal. This is helpful in minimal material waste, thereby leading to cost efficiency and environmental benefits as well.
Elevated production rates: Cold heading machines are known for their speed and capability to produce hundreds of parts per minute. Therefore, it is ideal for high-volume manufacturing especially for the automotive industry.
Versatility: Cold heading or cold forging is capable of producing a wide array of components demanding intricacy and strict dimensional control.
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