1. Preparation of blank: precision die forging requires high requirements for blank, small quality tolerance of blank, small collapse angle of section, flat end, straight to the axis of blank, and no pitting, cracks, pits, large scratches or bruises on the surface of blank; In addition, surface finishing (polishing, polishing, pickling, etc.) is required before forging, Remove the oil stain, slag inclusion, bruise and depression on the surface. Sawing and turning blanking are commonly used for aluminum alloy precision die forging, and band sawing blanking is more commonly used.
2. Billet heating: The method of no oxidation and less oxidation heating shall be adopted to reduce the oxide scale produced in the heating process to a certain extent.
3. Precision forging process and reduction: During precision forging, crankshaft forging press, precision forging machine and other different equipment can be used for combined die forging.
4. Process room arrangement: several process rooms for forging production need to be inspected. The next precision die forging process can only be carried out after the blank surface defects are polished or polished.
5. Lubrication: lubrication can make the deformation even and increase the fluidity of metal. However, too thin or too thick lubrication will bring bad results, and lubrication must be appropriate.