Shanxi Jianing Forging has collected real-world engineering cases of long shafts, short shafts, drive shafts, and marine nuclear power shaft forgings, fully showcasing the forging process of shaft forgings, finished product precision, and practical application scenarios for heavy equipment.
A hydraulic equipment factory in Guilin, Guangxi, has long faced issues of low material utilization and significant fluctuations in product performance when producing key shaft forgings. The factory mainly produces hydraulic system drive shaft parts, requiring high internal microstructure, density, and consistency in mechanical properties of forgings. However, in the past, suppliers often provided shaft forgings with local looseness and uneven hardness, resulting in a high rate of scrap in downstream processing.
In the original procurement of shaft forgings, this hydraulic equipment factory encountered the following core pain points: First, the design of the forging blank allowance was unreasonable, resulting in large material waste and increased processing costs; Second, the post-forging heat treatment process is unstable, leading to large workpiece deformation and affecting assembly accuracy; Third, significant performance differences between product batches cannot meet the long-term operational reliability requirements of the equipment. These issues directly affect the service life of the entire equipment and its market reputation.
To address these pain points, Jianing Forging provides customers with customized shaft forging solutions. First, by optimizing the forging allowance design and multi-directional forging process, material utilization is increased by about 15%, effectively reducing the weight of the blank. Secondly, specialized controlled forging and cooling technology is used, combined with more accurate heat treatment parameter control, resulting in uniform internal microstructure of the forging, grain size reaching above grade 7, and hardness variance controlled within ±3 HRC. Additionally, combining full-process dimensional inspection with ultrasonic flaw detection ensures consistent machining allowances and no internal defects for each shaft forging, allowing customers to proceed directly to the finishing stage without adding additional straightening steps. After implementing this plan, the customer's overall pass rate for shaft forgings increased from the original 87% to over 98%, and the processing cost per piece dropped by about 12%.
