Cemented carbide circular blades, featuring high hardness, wear resistance, and high-temperature resistance, have become key consumables in the industrial processing field, with applications covering multiple high-demand industries. The following is an analysis from the perspectives of industry scenarios, processing requirements, and blade advantages:
I. Metal Processing Industry: Core Tools for Cutting and Forming
- Mechanical Manufacturing Field
Application Scenarios: Turning and milling of auto parts (engine cylinder blocks, gear shafts) and machine tool accessories (bearing rings, mold cores).
Blade Advantages: Cemented carbide circular blades (such as CBN-coated blades) can withstand high temperatures and pressures during high-speed cutting. For steels (such as 45# steel, alloy steel), the cutting accuracy reaches IT6 – IT7 levels, and the surface roughness Ra ≤ 1.6μm, meeting the processing requirements of precision parts. - Aerospace Manufacturing
Typical Application: Milling of titanium alloy landing gears and aluminum alloy fuselage frames.
Technical Requirements: Most aerospace materials are high-strength light alloys. Circular blades need to have anti-adhesion properties (such as TiAlN coating) to avoid chemical reactions between the blades and materials during processing. Meanwhile, the edge arc design can reduce cutting vibration and ensure the processing stability of thin-walled parts.
II. Wood and Furniture Processing: Standard for Efficient Cutting
- Furniture Manufacturing
Application Scenarios: Cutting of density boards and multi-layer boards, and mortise and tenon processing of solid wood furniture.
Blade Type: Circular saw blades made of fine-grained cemented carbide (such as YG6X) have sharp and wear-resistant edges. The cutting speed can reach 100 – 200m/s, and the service life of a single blade is 5 – 8 times longer than that of high-speed steel blades, suitable for mass production of boards. - Wood Flooring Processing
Special Requirements: The tongue-and-groove cutting of laminated wood flooring requires blades to have high impact resistance. The circumferential uniform force-bearing design of circular blades can reduce the risk of edge chipping. Meanwhile, the coating technology (such as diamond coating) can reduce frictional heat during cutting and avoid carbonization of the board edges.
III. Stone and Building Materials: Solver for Hard and Brittle Materials
- Stone Processing Industry
Application Scenarios: Cutting of granite and marble rough blocks, and chamfering processing of ceramic tiles.
Blade Characteristics: Circular blades with a WC-Co cemented carbide matrix combined with polycrystalline diamond compact (PDC) have a hardness of HRA90 or above, can cut stones with a Mohs hardness below 7, and the cutting efficiency is 30% higher than that of traditional silicon carbide grinding wheels. - Construction Engineering
Typical Case: Drilling and grooving of concrete prefabricated parts (such as bridge reinforced concrete components).
Technical Highlights: The water-cooled structure design of circular blades can timely take away cutting heat, avoiding concrete cracking due to high temperature. Meanwhile, the serrated edge design enhances the crushing ability of brittle materials and reduces dust pollution.
IV. Electronics and Precision Manufacturing: Key for Micron-level Processing
- Semiconductor Packaging
Application Scenarios: Cutting of silicon wafers, and depaneling of PCB circuit boards.
Blade Precision: Ultra-thin cemented carbide circular blades (thickness 0.1 – 0.3mm) combined with high-precision spindles can control the chipping amount within 5μm when cutting silicon wafers, meeting the micron-level processing requirements of chip packaging. Moreover, the high wear resistance of the blades can ensure the dimensional consistency during batch cutting. - Precision Parts Processing
Typical Application: Milling of watch movement gears and minimally invasive surgical instruments for medical devices.
Advantage Embodiment: The edges of circular blades are mirror-polished (roughness Ra ≤ 0.01μm), so there is no need for secondary grinding of the part surfaces after processing. Meanwhile, the high rigidity of cemented carbide can avoid deformation during the processing of small-sized parts.
V. Plastic and Rubber Processing: Guarantee for Efficient Molding
- Plastic Film Production
Application Scenarios: Slitting of BOPP films, and trimming of plastic sheets.
Blade Design: Circular slitting blades adopt a negative rake angle edge design to reduce the phenomenon of plastic sticking to the blades. Combined with a constant temperature control system, they can maintain sharp edges at a processing temperature of 150 – 200℃, and the slitting speed reaches 500 – 1000m/min. - Rubber Product Processing
Typical Application: Cutting of tire treads, and blanking of seals.
Technical Advantages: The edge hardness of cemented carbide circular blanking blades reaches HRC75 – 80, which can blank elastic materials such as nitrile rubber 50,000 – 100,000 times repeatedly, and the edge wear amount ≤ 0.01mm, ensuring the dimensional consistency of products.