In the field of hydraulic component manufacturing, the material properties of key components directly determine the operational stability and service life of equipment. A hydraulic parts factory encountered significant bottlenecks in the selection and supply of alloy steel forgings, but ultimately achieved product performance optimization and reduced production costs through cooperation with professional forging enterprises.

Project Background

This hydraulic parts factory has long produced various hydraulic system components, with some core components requiring alloy steel forgings to enhance strength and toughness. During batch processing, forgings provided by original suppliers frequently exhibited internal cracks and uneven hardness, leading to a decline in finished product pass rates and triggering multiple after-sales quality complaints. The production department urgently needed a partner who could stably supply high-quality alloy steel forgings.

Customer pain points

Specific problems with original forgings include: large fluctuations in material composition, making it difficult to control hardness within a reasonable range after heat treatment; Tiny looseness or segregation inside the forging reduces the fatigue life of the part; Poor dimensional consistency increases the time required for subsequent machining and increases the rate of scraps. In addition, unstable supplier delivery times have also affected customers' overall production rhythm.

Solution

After extensive comparison and on-site inspection, the customer chose Jianing Forging as the new forging supplier. Jianing Forging has proposed the following solutions tailored to the specific working conditions of customers:

• Customized material formulations: Based on the stress characteristics of customer parts, we recommend suitable alloy steel grades (such as 40Cr, 42CrMo, etc.), and strictly control the content ranges of carbon, chromium, molybdenum, and other elements during the smelting process to help stabilize material composition.
• Optimized forging process: Using multi-directional die forging technology combined with a reasonable forging ratio, it effectively eliminates internal looseness and segregation, refines grains, and improves the density and mechanical properties of forgings.
• Improve heat treatment processes: Develop specialized quenching and tempering processes for different grades, enabling more precise temperature control and cooling speed to ensure hardness uniformity and provide complete hardness test reports.
• Enhanced dimensional control: Using high-precision molds and excellent CNC machining equipment, key dimensional tolerances of forgings are kept within ±0.5mm, reducing subsequent processing volume for customers.

Implementation results

After adopting alloy steel forgings supplied by Jianing Forging, the product pass rate of the hydraulic parts factory increased from the original 87% to over 96%, and after-sales complaints caused by material defects were eliminated. At the same time, due to good dimensional consistency of forgings, the frequency of tool changes during machining is reduced, increasing overall production efficiency by about 15%. The client subsequently included Jianing Forging in its list of long-term qualified suppliers and expanded the scope of cooperation.

Service support

Jianing Forging always adheres to a strict quality management system, with inspection nodes set at every step from raw material entry to finished product shipment. During the cooperation, Jianing Forging regularly reviewed processes with the customer's technical team, continuously optimizing forging design and production plans to ensure products always align with customer needs.