The manufacturing of cold forging gears is not that different from the forging of other metal parts. The process is almost only that the requirement of the gears might be a bit different because of the conditions they used in.
Gears, whether for automobiles or other machines, they should be made from steel. And just any steel but a steel alloy that matches its needs. There are so many things that you need to consider for a perfect cold forging gears manufacturing process. They include:
Understanding the Needs
The first step should be the establishment of the reasons for what the gear will be used for. This is an important finding that will determine, among many other things, the kind of gear you need to forge. This includes the size and material that will be appropriate and will provide the properties needed for the conditions the gear will be used in.
Selecting Raw Materials
The selection of the material to forge is not that simple. It’s known that steel makes the best material for gears but what differs is the alloy to use. Note that there are so many alloys that you can select from, but you need a raw material that suits your needs. This is an important factor to consider.
Striking
The striking step of cold forging gears is where the billet is pressed by high force to cause plasticity. The workpiece is put under very high pressure and makes it molten, and that’s it takes the shape of the die. The most important thing to consider is the amount of compression force the hydraulic press machine should produce for proper gear forging.
Heat Treatment
After cold forging gears and now you have the forging, you need to harden, and that’s why heat treatment is a crucial factor. The treat should be by heating to appoint whether the forgings turn red. This will improve the mechanical properties of the gears, which are very crucial.
Finishing work
The finish work may not be necessary for the cold forging gears since the cold forging process produces near-net-shape products. But in cases where the gears need to be refined further, then it may be necessary. The parts should also be tested for quality standards at this stage.
Packaging
At this point, you now have cold forged gears, and the only thing left is the packaging. They should be packaged in a safe environment that does not expose them to mechanical damages during shipping.