en.Wedoany.com Reported - China's Yisu Laser (E3D) announced in June 2026 that, by integrating equipment, materials, processes, and engineering expertise, it has achieved batch 3D printing of tire mold steel blades without subtractive manufacturing, support structures, and with high surface quality. A single machine can produce 1,000 to 3,000 blades of various specifications in one run.
Tire mold steel blades are used to form fine pattern grooves on tire treads, directly impacting performance in wet traction, snow grip, and handling stability. Traditional manufacturing methods face challenges such as high difficulty and long lead times. Addressing the 3D printing challenge where supports are typically required for features with a 30° overhang, Yisu Laser conducted specialized process R&D, successfully achieving support-free, high-quality 3D printing for features as low as 15°. The test part consists of inclined long thin-walled structures with a wall thickness of 1.14 mm, a length of 83.91 mm, and inclination angles starting from 15° and increasing in 5° increments. From the demonstration results, even the thinnest wall at 15° can be fully formed without warping.
Yisu Laser divides the steel blade structure into overhang zones, top zones, and regular zones, each employing different scanning strategies and process parameter combinations. Through extensive printing tests, it achieved support-free printing of parts with a minimum thickness of only 0.6 mm, with clear details on the lower surface and high quality on the side surfaces. The company uses self-developed dual-laser equipment for mass production. This technological breakthrough significantly shortens the manufacturing cycle of tire mold steel blades, addressing industry pain points such as the need for supports in conventional 3D printing, high breakage rates after support removal, and the inability to completely remove supports in complex patterns.
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