Double-click the cold heading process production uses large quantities of less complex parts, most companies are currently using the technology, in terms of their number, about 60% to 80%, especially about the general specifications M6 fasteners accounting for more than 80%.
It includes a wide range of various structures and forms of the workpiece head screw head, as long as we need to look at the material in 5.5dm, can Upsetting, upsetting process uses a lot of traditional double-click on. Hex bolts and screws for processing, raw materials can only be a cylindrical or semi-circular slotless
.
Hex bolt and then subject to the six-party rubbing thread cutting screws and then rub subject grooving thread.
Large-sized hexagonal bolts, one is the use of multi-station cold heading machine forming hexagonal heading out, the other is the use of Z47 series with a cutting edge multi-station joint upsetting Machine upsetting head shape and twist threads.
Stone West (international) business organizations and the majority of the small size of the screw factory screw manufacturer, has been in the double-click on the cold heading machine cold heading machine with a hexagonal edge screw head End well with Phillips, a triangular cross-section of the threaded screw.
At present, in the case of Phillips screws usage increases, double cold heading process has been fully utilized, Phillips screw and long Phillips screws Double-click the process can be carried out using cold heading. Stone Western business organizations screw factory Double-click process to produce Phillips.
Slotted screw old craft is heading after double-clicking slotted head milling and then rub the threads. Currently, the process has many enterprises are still in use. But Punch Phillips slotted structure better than solid, low punch life, economic efficiency.
