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Arc-Shaped Plates in the Construction Machinery Industry: Industry Background and Technological Evolution

Market Demand Drives Development

As heavy equipment like mining machinery and shield tunneling machines evolves toward lightweight, high-strength designs, traditional welding processes can no longer meet mass production demands for curved structural components (e.g., hydraulic support guard plates, excavator boom liners). By 2024, the global construction machinery market surpassed $600 billion, with demand for complex curved components growing at an annual rate of 12%.

Technological Breakthroughs

The integration of Incremental Forming and hot stamping composite processes has elevated forming precision for high-strength steels like Q345B to ±0.5mm, reducing scrap rates by 40% compared to conventional methods. A case study demonstrates that thermoformed curved plates in a tunnel boring machine cutterhead achieved a threefold increase in fatigue life.