What is the difference between a cold heading machine and a heading machine? Which one is better?

The difference between cold heading machine and heading machine

The cold heading machine applies impact force to the material to deform. When making screws, cold heading process is used to squeeze metal materials such as iron into the corresponding shape.
The header is a cold header equipment for screw header. Its function is a mold-molded 2-press product. It is mainly used for the head forming of screw products. It can forge various metal materials: ordinary steel, carbon steel, stainless steel, copper, aluminum, alloy steel and other materials, and has a wide range of uses. The header can make ordinary self-tapping screws, electrical screws, micro-screws, inner and outer 6-corner bolts, drilling tail screws, fiberboard screws and other common products.
The difference between cold heading machine and heading machine is that the cold heading machine includes a heading machine. The heading machine only hits the heading machine. Cold heading continues to process cold heading on this basis. The classification difference is that the cold heading machine is divided into open and close cold heading machine and multi-station cold heading machine. The opening and closing cold heading machine has one-and-a-half-open mold closing cold heading machine, 2-and-a-half-open mold closing cold heading machine, 2-and-a-half-open mold closing cold heading machine, 3-and-a-half-open mold closing cold heading machine. The heading machine is divided into No. 0 screw heading machine, one-and-a-half-screw heading machine, one-and-a-half-long screw heading machine, 2-and-a-half-screw heading machine, and 2-and-a-half-screw heading machine. There are differences in appearance, and the cold heading machine is larger than the same type of heading machine.

Are cold heading machines the same as heading machines?

Cold heading machines and heading machines are different. Cold heading machines are special equipment mainly used to mass produce fasteners such as nuts and bolts. Cold heading machines are the general name of the entire screw making industry. The cold heading process includes heading, that is, heading machine technology is cold heading process;

The header can be divided into shoelace header and screw header according to the industry used. Generally, it can be combined in any way and generally does not appear in an independent form. It is to make the screws into pieces and then the header into the desired round, flat, square, 6-sided head shapes.

Which one is used for screws, cold heading machine or heading machine

Cold heading machines and heading machines are both screw-making equipment. There is no one that makes screws separately. You can use a header to hit the head first, and then use a tooth rubbing machine to make ordinary screws. If there are some special technology opening and closing screws and special screws, you need to use a header to hit it first and then use a cold heading machine to pierce the desired shape. If you need it, you can also rub the teeth. Therefore, the cold heading machine and the header are used to make screws together.

Advantages and disadvantages of cold heading machines and heading machines

advantage

The cold heading process of cold heading machine is based on the metal plastic deformation theory, and applies a certain pressure to the metal blank at room temperature to cause plastic deformation in the mold cavity and mold according to the specified shape and size. It is necessary to select high-quality "plastic transformation" metal materials, such as riveted screw steel, with strict standards for its chemical composition and mechanical properties.
Cold heading bolts and nut forming machinery have multiple models and multiple series of machine types. The equipment has reliable performance, high efficiency and stable product quality. The product forming upsetting force is large, the configuration power is in, and the equipment is invested in one go. Therefore, the production specifications below M24 are relatively economical.
Advantages of header: Its working principle is to straighten the wire, enter the wire, cut off, feed the material into the main mold, first forging, and second punch forming blanks exit. Its work is completed in one go, and the production capacity per minute can reach about 200 pills, which is a relatively advanced product in current technology.

shortcoming

An obvious disadvantage is that the change in the resistance of a cold heading machine in a station may interfere with the position accuracy of the punches of other stations, especially when the gap between the slider guide rails is large; specifically, for example, if a station adjusts the punch position, the magnitude and direction of the upsetting resistance change, resulting in the overall displacement of the slider due to the change of the stress state, and the position of the punches of other stations is damaged. Therefore, the position of the punches of each station cannot be adjusted independently, but must be adjusted comprehensively. Therefore, the technical level of the operator is particularly high. Because of this, the cold heading machine of multiple stations (even 2 stations, 2-modes and 2-punch) cannot replace the double-click machine, so the double-click machine can remain strong for a long time.

Cold heading machine and header use range

Cold heading machineofRange of use

Connectors (such as bolts, nuts, screws, rivets) are specially designed for manufacturing various standard blanks of screws, rivets and other standard parts by cold heading. They are formed in the form of a whole mold and are suitable for industry manufacturers that produce screws and rivets in batches. The entire structure of the machine is from straightening, material selection, cutting twice to forming until the blanking is done automatically.

Range of use of headset

It can be used to make ordinary steel, carbon steel, stainless steel, copper, aluminum, alloy steel and other materials, and can be used to make ordinary self-tapping screws, electrical screws, micro screws, inner and outer 6-corner bolts, drilling screws, fiberboard screws, etc.