Reducing nut production costs requires a systematic approach encompassing four aspects: material utilization, process optimization, automation upgrades, and supply chain management. This can be achieved through a dual-drive strategy of technology and management to increase efficiency and reduce costs.
Improving Material Utilization and Controlling Raw Material Costs
Adopting Cold Forging Process: Cold forging involves high-speed stamping of metal wire at room temperature, forming the nut blank in one step. Material utilization can reach 80%–90%, far exceeding the less than 50% of traditional machining, significantly reducing waste.
Optimizing Steel Cutting Accuracy: Precisely calculate the required steel length for different nut specifications to avoid waste caused by excessive or insufficient length. Use automated fixed-length cutting equipment to control cutting errors within ±0.5mm, improving consistency.
Selecting Cost-Effective Alternative Materials: While meeting strength and corrosion resistance requirements, evaluate the use of lower-cost alternative steels or copper alloys (such as C3604 environmentally friendly copper rods). Adjust procurement strategies dynamically based on market conditions to mitigate the risk of raw material price fluctuations.
Selecting Cost-Effective Alternative Materials:
Optimize Production Processes and Reduce Waste
Implement One-Step Forming Technology:Through mold innovation, achieve one-step cold heading of complex structural parts (such as dovetail nuts and hollow bolts), eliminating subsequent machining processes, reducing equipment investment and labor costs, and increasing production efficiency by over 30%.
Implement Lean Production Management: Introduce 5S management, Just-In-Time (JIT) production, and single-piece flow models to eliminate non-value-adding activities such as waiting, handling, and over-processing. Identify bottlenecks through value stream analysis, optimize production line layout, and shorten production cycles.
Scientifically Arrange Heat Treatment and Surface Treatment: Use controlled atmosphere furnaces for segmented heating and cooling to reduce deformation and rework rates; promote environmentally friendly coating technologies such as Dacromet and chromium-free passivation to improve adhesion while reducing energy consumption and processing costs.
