Daming Shipbuilding Achieves Breakthrough in steel sheet Structure Processing

Daming Group has announced a significant technological breakthrough in steel sheet structure processing, successfully overcoming a long-standing deformation control challenge in the shipbuilding industry. The company has now completed and delivered multiple batches of ship superstructure sheet components, marking a key step toward stable mass production and industrial application.

As the first domestic shipbuilding project to adopt sheet structure solutions through Daming Group’s integrated collaborative service model, the achievement has received strong recognition from multiple shipyards. From initial testing through to full-scale production, Daming has maintained consistently high precision control standards, reinforcing its position as a reliable partner in advanced marine manufacturing.

Addressing a Long-Standing Industry Challenge

Steel sheet structures are critical hull components widely used in ship superstructures, hatch covers, and movable decks of seagoing vessels. Typically manufactured from 4–8mm steel plates and profiles, these structures present significant technical difficulties due to their large dimensions, thin material thickness, and extensive welding requirements. These factors commonly result in deformation issues such as warping and reduced flatness after welding.

Industry conventional processes often lead to edge warping and wavy deformation ranging from 30mm to 100mm, posing major challenges for downstream assembly accuracy and efficiency.

Engineering a Precision Manufacturing Solution

To address this challenge, Daming Group established a dedicated task force composed of its technical quality team and shipbuilding division. The team focused on developing a fully controlled manufacturing solution for thin-plate frame structures, emphasizing process optimization, structural analysis, and repeated validation testing.

Key breakthroughs were achieved through improvements across the full production chain, including:

• Raw material stress relief processing
• Optimized frame assembly methods
• Controlled welding sequence design
• Enhanced deformation suppression techniques

Advanced equipment, including high-stress-relief systems and plasma welding technology, was fully integrated into the production process. Each stage was strictly controlled to minimize internal stress accumulation and reduce deformation during manufacturing.

Industry-Leading Precision Achieved

Through systematic optimization, Daming has significantly improved flatness control in thin-plate frame production, reaching an advanced industry level.

For example, a 10m × 3m × 6mm thin-plate frame produced using Daming’s process achieved overall flatness control within 9.4mm, including free-edge warping—representing a substantial improvement over conventional outcomes.

Strengthening Collaboration with Shipyards

To ensure stable and scalable batch delivery, Daming established a close technical communication mechanism with partner shipyards. Through continuous engagement—including technical meetings, on-site inspections, and trial production cycles—both parties collaborated closely on:

• Structural design optimization
• Weld layout improvements
• Material stress relief strategies
• Welding process refinement
• Quality inspection standards
• Production efficiency enhancement

This joint effort enabled rapid iteration of solutions and the establishment of a shared understanding of high-precision manufacturing requirements.

Driving the Future of Shipbuilding Innovation

As a specialized supplier of thin-plate flat frame manufacturing and integrated hull structure solutions, Daming Group remains committed to technological innovation and continuous capability improvement.

Daming will further strengthen its core manufacturing competencies and deliver high-precision products and services to global shipbuilding partners. By working closely with industry stakeholders, Daming aims to contribute to a new era of high-quality development across the maritime manufacturing value chain.