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 heavy machinery factory in Deyang, Sichuan, has set high requirements for internal density, mechanical properties, and delivery times in the procurement of large shaft forgings. After multiple rounds of technical evaluation and on-site inspection, the plant ultimately chose to establish a long-term partnership with Jianing Forging. With mature forging techniques and stable production capacity, Jianing Forging provides this customer with multiple batches and specifications of shaft forgings, effectively supporting the manufacturing schedule of its key equipment.
The original shaft forging supplier at the heavy machinery factory had the following issues: First, the internal structure of the forgings was uneven, leading to cracks or performance fluctuations during subsequent processing, which affected the equipment's service life; Second, the measured values of mechanical properties (such as tensile strength and impact toughness) deviate significantly from theoretical design values, making it impossible to meet safety requirements under relatively high strength conditions; Third, the batch delivery cycle is unstable, often delaying the assembly progress due to capacity bottlenecks, putting significant production management pressure on customers.
To address these pain points, Jianing Forging has developed a systematic solution covering material selection, process design, and production control:
(1) Using high-quality alloy steel billets combined with multi-directional forging processes eliminates internal looseness and segregation, making the core structure of the forging denser and more uniform;
(2) Develop differentiated heat treatment curves; through more accurate temperature control and segmented cooling, help stabilize product mechanical indicators and ensure sufficient margins;
(3) Equipped with dedicated molds and CNC machining equipment to achieve rough and precision machining in a single clamp, significantly shortening production cycles while supporting dimensional tolerance control within predetermined limits;
(4) Establish a dedicated project management mechanism to track the entire process from material input to finished product, ensuring on-time delivery of each batch. Thanks to these measures, the shaft forgings delivered by Jianing Forging performed stably in actual installation tests, earning dual recognition from the customer's technical and purchasing departments.
