The Shanxi Jianing Forging Forging Train Wheel, Mine Overhead Wheel, and Heavy-Duty Overhead Wheel Forging Project features mature forging technology for high-strength wheels, excellent load-bearing performance, and suitable for heavy-duty conditions in rail transit and mines.
A construction vehicle parts factory in Bazhong, Sichuan, has long relied on outsourced wheel forgings for heavy engineering vehicles such as loaders and excavators. During mass production, the factory found fluctuations in dimensional consistency and fatigue life between different batches, affecting vehicle assembly efficiency and after-sales service quality. To improve overall product performance, the factory has established a technical cooperation with Jianing Forging to optimize wheel forgings.
This parts factory faces three key issues in the use of wheel forgings:
1. Occasional cracking occurs at the connection between the rim and spokes under impact loads, which can lead to wheel scrapping in severe cases;
2. The internal structure of the forging is uneven, microcracks appear on the surface after processing, and the finished product rate is less than 85%;
3. In multi-variety, small-batch production modes, traditional forging processes struggle to balance the mechanical properties and production efficiency of different wheel specifications, resulting in long delivery times and relatively high costs.
To address these pain points, Jianing Forging offers the following solutions:
· Made of customized alloy steel and forged through multiple temperature-controlled passes, the rim and spoke-spoke junction area forms a continuous streamlined structure, improving fatigue resistance. Actual measured impact energy absorption capacity is about 20% higher than conventional processes.
· By introducing fine mold design and forging processes, the dimensional tolerances of forgings are controlled within ±0.5mm, reducing subsequent machining allowances, achieving a surface roughness of Ra3.2μm, effectively eliminating microcrack hazards.
· A flexible production line has been established, equipped with a rapid mold change system for wheels of different specifications, with a single batch of mold change controlled within 15 minutes. Combined with parametric forging technology, small-batch orders can be delivered within 7 days, reducing overall costs by about 12%.
