In the field of construction machinery, wheel forgings are key components that bear vehicle weight and transmit driving force, and their quality directly affects the operational stability and service life of the entire machine. A heavy construction machinery factory in Sanming, Fujian, faced multiple challenges in wheel forgings selection and supply. Based on a deep understanding of industry needs, Jianing Forging provided a customized comprehensive forging solution.

Case Summary

This case focuses on a wheel forging project at a construction machinery heavy factory in Sanming, Fujian. This factory has long been engaged in the production and assembly of large construction machinery, placing high demands on the strength, toughness, and dimensional consistency of wheel forgings. After multiple rounds of technical coordination, Jianing Forging became the forging supplier for the project and successfully completed mass delivery.

Customer pain points

Before cooperation, the factory mainly faced the following issues in wheel forgings: First, the internal microstructure of the forgings was insufficient, making early fatigue cracks prone to occurring under heavy load conditions; Second, large dimensional tolerance fluctuations lead to increased machining allowance, affecting production efficiency and costs; Third, some suppliers have unstable delivery cycles, restricting the assembly progress of complete vehicles.

Product advantages

To address these pain points, Jianing Forging optimized its solution from four dimensions: materials, processes, inspection, and delivery:

• Material selection: High-quality alloy structural steel is selected, and through precise chemical composition, the forging has excellent hardenability and comprehensive mechanical properties.
• Fine forging: Using multi-station die forging technology and optimized heating specifications, the metal flow lines are reasonably distributed along the wheel load direction, improving fatigue resistance.
• Strict inspection: Ultrasonic flaw detection and coordinate measuring are introduced to screen internal defects and re-inspect key dimensions for each forging, helping deliver products that meet drawing requirements.
• Stable delivery: Establish dedicated production scheduling plans and inventory mechanisms to achieve on-demand batch delivery, helping customers shorten vehicle assembly cycles.

Through these measures, the qualification rate of wheel forgings at the construction machinery heavy factory has improved to a good level, road tests after installation have been stable, and customer feedback has been positive. This cooperation case also demonstrates Jianing Forging's ability in customized services in the field of construction machinery forgings.