Significant achievements have been made in the welding technology for cemented carbide woodworking tools.
Release time:
2025-02-20
A major breakthrough has been achieved in the field of welding technology for cemented carbide woodworking tools, and the related findings demonstrate tremendous application potential and economic benefits.
A major breakthrough has been achieved in the field of welding technology for cemented carbide woodworking tools, and the related findings demonstrate tremendous application potential and economic benefits.
Cemented carbide woodworking tools offer advantages such as high hardness, excellent wear resistance, long service life, and sharp cutting edges that remain unchanged and do not deform. During use, these tools do not require frequent sharpening or regrinding, while still ensuring high precision and quality in the processed products. They represent an inevitable trend toward replacing high-speed steel tools. As an example, consider the welding of ultra-long, thin strip-shaped cemented carbide blades: This technology enables precise welding of cemented carbide strips—measuring up to 1000 mm in length, 1 mm in thickness, and 10 mm in width—onto one side of a strip-shaped steel blade measuring 1000 mm in length, 4 mm in thickness, and 30 mm in width, thereby creating woodworking planer blades with a single-sided cemented carbide cutting edge.
This technology employs a high-frequency, fully automated brazing process that encompasses several key aspects: the rational selection of raw materials—including blade bodies, blade strips, and brazing alloys—the meticulous design of the structural shapes of blade bodies and brazed joints, control of welding deformation and stress relief, fabrication of specialized welding equipment and tooling fixtures, and cold-working techniques for tool shaping. Compared with similar foreign technologies, this technology uses relatively simple production equipment, boasts a high degree of automation, requires fewer welding steps, doubles production efficiency, reduces production costs by more than half, and delivers product quality that surpasses comparable foreign products in certain areas. Some of its processes are uniquely innovative, with a welding speed reaching up to 1200 mm/min. This technology is not only suitable for welding woodworking planer blades but can also be widely applied to the welding and product development of cemented carbide tools used for cutting paper, fabric, and leather, as well as cemented carbide tools for mechanical machining and cemented carbide molds.
With the growing trend toward mechanization in the woodworking industry, the outlook for the woodworking tool market is extremely promising. The demand for various types of woodworking tools continues to rise, particularly in the international market, where there is a huge appetite for high-quality tools. This technological breakthrough from Harbin Institute of Technology holds great potential to bring new development opportunities to woodworking tool manufacturers and drive technological upgrades across the industry.
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