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 mining parts factory in Fuling, Chongqing, has long been engaged in the production of mining machinery parts, with its shaft components playing a key role in the operation of the entire machine. The shaft forgings produced by the factory's original forging process had issues such as poor dimensional consistency and insufficient internal structural uniformity, resulting in large subsequent machining volumes and obvious material waste, while also affecting the assembly efficiency and service life of the entire machine. To enhance product competitiveness, the plant urgently needed a partner who could stably supply high-quality shaft forgings.
The main challenges faced by customers include: 1. The wide dimensional tolerance range of shaft forgings leads to repeated repairs during assembly and extends the production cycle; Second, the internal distribution of the material is not ideal, affecting the product's fatigue resistance; Third, the material utilization rate under traditional processes is relatively low, increasing overall costs; Fourth, delivery cycles fluctuate greatly, making it difficult to meet the concentrated demand during the peak season for mining machinery.
To address these pain points, Jianing Forging has customized a forging plan for shaft forgings for the plant. During the mold design phase, numerical simulation is used to optimize the parting surface and draft angle, reducing subsequent machining allowances. During the forging process, by precisely controlling the heating temperature, deformation rate, and cooling method, the uniformity of grain refinement is improved. At the same time, full-process dimensional inspection and hardness sampling are implemented to help stabilize key parameters in each batch of products. Ultimately, the delivered shaft forgings can be controlled within ±0.3mm, material utilization is increased by 12%, and delivery times are shortened by about 20%, reducing the customer's overall operating costs.
